ML23174A106

Idaho State Univ., AGN-201M Reactor (Serial No. 103), Appendix a to Facility Operating License Technical Specifications

ML23174A106
Person / Time
Site:	Idaho State University
Issue date:	06/30/2023
From:	Idaho State University
To:	Office of Nuclear Reactor Regulation
References
Download: ML23174A106 (1)

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APPENDIXA TO FACILITY OPERATING LICENSE NO. R-110 TECHNICAL SPECIFICATIONS FOR IDAHO STATE UNIVERSITY AGN-201 M REACTOR (SERIAL NO. 103)

DOCKET NO. 50-284 AGN-201 Technical Specifications, Amendment No. 8 RSC ~ e v e i w : iooe1,-FebieE;- 2023 NRC Approval xxxx xx, 2023 Page Oof

TABLE OF CONTENTS PAGE 1.0 DEFINITIONS .................................................................................................. 2 2.0 SAFETY LIMITS AND LIMITING SAFETY SYSTEM SETTINGS ............ 6 2.1 Safety Limits ......................................................................................... 6 2.2 Limiting Safety System Settings ........................................................... 6 3.0 LIMITING CONDITIONS FOR OPERATION .............................................. 8 3.1 Reactivity Limits ............................................................................*...... 8 3.2 Control and Safety Systems .................................................................. 8 3.3 Limitations on Experiments ................................................................ 11 3.4 Radiation Monitoring, Control and Shielding..................................... 12 4.0 SURVEILLANCE REQUIREMENTS .......................................................... 14 4.1 Reactivity Limits ................................................................................. 14 4.2 Control and Safety System.................................................................. 14 4.3 Reactor Structure ................................................................................. 15 4.4 Radiation Monitoring and Control.. .................................................... 16 5.0 DESIGNFEATURES ..................................................................................... 18 5.1 Reactor ................................................................................................ 18 5.2 Fuel Storage ........................................................................................ 19 5.3 Reactor Room ..................................................................................... 19 6.0 ADMINISTRATIVE CONTROLS ................................................................ 20 6.1 Organization ........................................................................................ 20 6.2 Staff Qualifications ............................................................................. 23 6.3 Training ............................................................................................... 23 6.4 Reactor Safety Committee .................................................................. 23 6.5 Approvals ............................................................................................ 25 6.6 Procedures ........................................................................................... 25 6.7 Experiments ........................................................................................ 26 6.8 Safety Limit Violation ........................................................................ 26 6.9 Reporting Requirements ..................................................................... 26 6.10 Record Retention................................................................................. 30 AGN-201 Technical Specifications, Amendment No.:__:

RSC ~Review: ~ a m 1 a i y 27-, Feb 20flw NRC Approval: ;\,,xx xx-i-e~, 20;_;;_++ Page 1 of3,2T

1.0 DEFINITIONS The terms Safety Limit (SL), Limiting Safety System Setting (LSSS), and Limiting Conditions for Operation (LCO) are as defined in 10 CFR 50.36 1.1 Authorized Operators - An authorized operator is an individual authorized by the Reactor Supervisor to operate the reactor controls and who does so with the knowledge of the Reactor Supervisor and under the direct supervision of a Reactor Operator.

1.2 Certified Observers - A certified observer is an individual certified by the Reactor Supervisor as qualified to activate manual scram and initiate emergency procedures.

1.3 Channel Calibration - A channel calibration is an adjustment of the channel such that its output responds, within acceptable range and accuracy, to known values of the parameter which the channel measures. Calibration shall encompass the entire channel, including equipment, actuation, alarm, or trip.

1.4 Channel Check - A channel check is a qualitative verification of acceptable performance by observation of channel behavior. This verification may include comparison of the channel with other independent channels or methods measuring the same variable.

1.5 Channel Test - A channel test is the introduction of a signal into the channel to verify that it is operable.

1.6 Coarse Control Rod - The scrammable control rod that can be mechanically withdrawn/inserted at two possible speeds (25 to 53 seconds full insertion time or 75 to 125 seconds full insertion time).

1.7 Control Rod-Any of the four moveable rods loaded with fuel that are manipulated by the reactor operator to change the reactivity of the reactor.

1.8 Excess Reactivity- The amount of reactivity above critical (keir= I). The excess reactivity is the amount of reactivity that would exist if all control rods were moved to their maximum reactive positions from the point where the reactor is exactly critical.

1.9 Experiment -

a. An experiment is any of the following:

(1) An activity utilizing the reactor system or its components of the neutrons or radiation generated therein; (2) An evaluation or test of a reactor system operational, surveillance, or maintenance technique; or (3) The material content of any of the foregoing, including structural components, encapsulation or confining boundaries, and contained fluids or solids.

AGN-201 Technical Specifications, Amendment No. c."'

RSC~Review: ~ ! ! a r y 27-, Feb 20~@

NRC Approval: x _ ; s ~ ~ ~ . 20iLl_+t- Page 2 of 3J,+

b. Secured Experiment -Any experiment, or component of an experiment is deemed to be secured, or in a secured position, if it is held in a stationary position relative to the reactor by mechanical means. The restraint shall exert sufficient force on the experiment to overcome the expected effects of hydraulic, pneumatic, buoyant, or other forces which are normal to the operating environment of the experiment or which might arise as a result of credible malfunctions.

c. Unsecured Experiment - Any experiment, or component of an experiment is deemed to be unsecured whenever it is not secured as defined in 1.9. b above.

Moving parts of experiments are deemed to be unsecured when they are in motion.

d. Movable Experiment - A movable experiment is one which may be inserted, removed or manipulated while the reactor is critical.

e. Removable Experiment- A removable experiment is any experiment, experimental facility, or component of an experiment, other than a permanently attached appurtenance to the reactor system, which can reasonably be anticipated to be moved from one or more times during the life of the reactor.

1.10 Experimental Facilities - Experimental facilities are those portions of the reactor assembly that are used for the introduction of experiments into or adjacent to the reactor core region or allow beams of radiation to exit from the reactor shielding. Experimental facilities shall include the thennal column, glory hole, and access ports.

1.11 Explosive Material - Explosive material is any solid or liquid which is categorized as a Severe, Dangerous, or Very Dangerous Explosion Hazard in Dangerous Properties of Industrial Materials, by N. I. Sax, 7th ed., (1989), or is given an Identification of Reactivity (Stability) Index of 2, 3, or 4 by the National Fire Protection Association in its publication 704-M, 1996, Identification System for Fire Hazards of Materials, also enumerated in the Handbook for Laboratocy Safety, 2nd ed. (1971) published by the Chemical Rubber Company.

1.12 Fine Control Rod- A low worth, non-scrammable control rod used primarily to maintain an intended power level. Its position may be varied manually.

1.13 Measured Value - The measured value is the value of a parameter as it appears on the output of a channel.

1.14 Measuring Channel - A measuring channel is the combination of sensor, lines, amplifiers, and output devices which are connected for the purpose of measuring or responding to the value of a process variable.

1.15 Operable -Operable means a component or system is capable of performing its intended function in its normal manner.

1, 16 Operating - Operating means a component or system is performing its intended function in its normal manner.

1.17 Potential Reactivity Worth - The potential reactivity worth of an experiment is the maximum absolute value of the reactivity change that would occur as a result of intended or anticipated changes or credible malfunctions that alter experiment position or configuration.

AGN-201 Technical Specifications, Amendment No.:.::;.

RSC ~Review: ~JQ!}-&IN!ary 27, Feb 2023© NRC Approval: ~~,xx x x ~ ~ . 20,<_l+i- Page 3 of 3J.+

Evaluations of potential reactivity worth of experiments also shall include effects of possible trajectories of the experiment in motion relative to the reactor, it~ orientation along each trajectory, and circumstances which can cause internal changes such as creating or filling of void spaces or motion of mechanical components. For removable experiments, the potential reactivity worth is equal to or greater than the static reactivity worth.

1.18 Reactor Component - A reactor component is any apparatus, device, or material that is a normal part of the reactor assembly.

1.19 Reactor Operation -Reactor operation is any condition wherein the reactor is not shutdown.

1.20 Reactor Safety System - The reactor safety system is that combination of safety channels and associated circuity which forms an automatic protective system for the reactor or provides information which requires manual protective action be initiated.

1.21 Reactor Secured- The reactor is secured when:

a. Either: ( l )- All safety and control rods are fully withdrawn from the core, or (2)_-The core fuse melts resulting in separation of the core, and:

b. The reactor console key switch is in the "off' position and the key is removed from the console and under the control of a licensed operator.

c. No work is in progress involving core fuel, core structure, installed control rods, or control rod drives unless they are physically decoupled from the control rods, and

d. No experiments are being moved or serviced that have, on movement, a reactivity worth exceeding the maximum allowed for a single experiment, or one dollar, whichever is smaller.

1.22 Reactor Shutdown - The reactor is shutdown if it is subcritical by at least one dollar in reactivity in the reference condition with the reactivity worth of all experiments included. The reactor shall be considered shutdown whenever:

a. Either: (1) All safety and control rods are fully withdrawn from the core, or (2) The core fuse melts resulting in separation of the core, and:

b. The reactor console key switch is in the "off' position and the key is removed from the console and under the control of a licensed operator.

1.23 Restricted Area - A restricted area is an area in which access to personnel is controlled for the purpose of protecting individuals against undue risks froni exposure to radiation and radioactive materials.

AGN-201 Technical Specifications, Amendment No.,,,-.*

RSC ApfmwalReview: 'January 21, Feb 2023();

NRC Approval: >;zi./S.X xx:.-.,~, 20h.J.-H- Page4 of3iT

1.24 Safety Channel - A safety channel is a measuring channel in the reactor safety system.

1.25 Safety Control Rod - One of two scrammable control rods that can be mechanically withdrawn/inserted at only one speed (25 to 55 seconds full insertion time).

1.26 Scram Time - The time for the control rods to change the reactor from a critical to a subcritical condition. In most cases, this time is less than or equal to the time it takes for the rod to fall from a full-in to full-out position.

1.27 Shall. Should and May - The word "shall" is used to denote a requirement; the word "should" is used to denote a recommendation; and the word "may" is used to denote permission - neither a requirement nor a recommendation.

1.28 Shutdown Margin - Shutdown margin shall mean the minimum shutdown reactivity necessary to provide confidence that the reactor can be made subcritical by means of the control and safety systems starting from any permissible operating condition assuming that the most reactive scrammable rod and the Fine Control Rod remain in their most reactive positions, and that the reactor will remain subcritical without any further operator action.

1.29 Static Reactivity Worth of Experiments - The static reactivity worth of an experiment is the value of the reactivity change which is measurable by calibrated control or regulating rod comparison methods between two defined terminal positions or configurations of the experiment. For removable experiments, the terminal positions are fully removed from the reactor and fully inserted or installed in the normal functioning or intended position.

1.30 Surveillance Time -A surveillance time indicates the frequency of tests to demonstrate performance. Allowable surveillance intervals shall not exceed the following:

a. Two-year - interval not to exceed 30 months.

b. Annual - interval not to exceed 15 months.

c. Semiannual - interval not to exceed seven and one-half months (30 weeks).

d. Quarterly - interval not to exceed four months.

e. Monthly - interval not to exceed six weeks.

1.31 True Value - The true value is the actual value for a parameter.

1.32 Unscheduled Shutdown - An unscheduled shutdown is defined as any unplanned shutdown of the reactor caused by actuation of the reactor safety system, operator error, equipment malfunction, or a manual shutdown in response to conditions that could adversely affect safe operation, not including shutdowns that occur during testing or check-out procedures.

AGN-20 I Technical Specifications, Amendment No. ~

RSC Aj}pfe¥a!Review: ~ ~ F e b 20D_OJ NRC Approval: !,>;.!S_X xxf'ea,:wr:,- ::a, 20~~-tt Page 5 of3,l.;.

2.0 SAFETY LIMITS AND LIMITING SAFETY SYSTEM SETTINGS 2.1 Safety Limits Applicability This specification applies to the maximum safe steady-state power level and maximum core temperature during steady-state or transient operation.

Objective To assure that the integrity of the fuel material is maintained and all fission products are retained in the core matrix.

Specification

a. The reactor power level shall not exceed 100 watts.

b. The maximum core temperature shall not exceed 200°C during either steady-state or transient operation.

The polyethylene core material does not melt below 200°C and is expected to maintain its integrity and retain essentially all of the fission products at temperatures below 200°C. The Hazards Summary Report dated February, 1962 submitted on Docket F-15 by Aerojet-General Nucleonics (AGN) calculated a steady-state core average temperature rise of 0.44 °C/watt. Therefore, a steady-state power level of 100 watts would result in an average core temperature rise of 44°C. The corresponding maximum core temperature would be below 200°C, thus assuring integrity of the core and retention of fission products.

2.2 Limiting Safety System Settings (LSSS)

Applicability This specification applies to the parts of the reactor safety system which will limit maximum power and core temperature.

Objective To assure that automatic protective action is initiated to prevent a safety limit from being exceeded.

Specification

a. The safety channels shall initiate a reactor scram at the following limiting safety system settings:

AGN-201 Technical Specifications, Amendment No.~~

RSC A:flpro¥alReview: 'January 21, Feb 20yffi NRC Approval: xxx., ,:xFotlrnai:, :3, 2011-i-!- Page 6of3J+

Channel Condition LSSS Nuclear Safety No. 2 High Power 6watts Nuclear Safety No. 3 High Power 6 watts

b. The core thermal fuse shall melt when heated to a temperature of about 120°C resulting in core separation and reactivity loss greater than 5% Aklk.

Based on instrumentation response times and scram tests, the AGN Hazards S1m1marv Report concluded that reactor periods in excess of 30-50 milliseconds would be adequately arrested by the scram system. Since the maximum available excess reactivity in the reactor is less than one dollar, the reactor cannot become prompt critical and the corresponding shortest possible period is greater than 200 milliseconds.

The high power LSSS of 6 watts in conjunction with automatic safety systems and/or manual scram capabilities will assure that the safety limits will not be exceeded during steady-state operation or as a result of the most severe credible transient.

In the event of a failure of the reactor scram, the self-limiting characteristic due to the large negative coefficient, and the melting of the thermal fuse at a temperature below 120°C, will assure safe shutdown without exceeding a core temperature of200°C.

AGN-201 Technical Specifications, Amendment No. *:::

RSC ~Review: ~JOaHuaiy 2'7, Feb 2023(£.

NRC Approval: xx,i.x xxfailRHIC:.' J3, 20:U-!-!c Page 7 of3J+

3.0 LIMITING CONDITIONS FOR OPERATION 3.1 Reactivity Limits Applicability This specification applies to the reactivity condition of the reactor and the reactivity worths of control rods and experiments.

Objective To assure that the reactor can be shutdown at all times and that the safety limits will not be exceeded.

Specification

a. The available excess reactivity with all control and safety rods fully inserted and including the potential reactivity worth of all experiments shail not exceed 0.65%

&:/k ($0.878) referenced to 20°C.

b. The shutdown margin with the most reactive safety or control rod fully inserted and the fine control rod fully inserted shall be at least I% &:/k ($1.3 5).

c. The reactivity worth of the control and safety rods shall ensure subcriticality on the complete withdrawal of the coarse control rod or any one safety rod.

Basis The limitations on total core excess reactivity assure reactor periods of sufficient length so that the reactor protection system and/or operator action will be able to shut the reactor down without exceeding any safety limits. The shutdown margin and control and safety rod reactivity limitations assure that the reactor can be brought and maintained subcritical if the highest reactivity scrammable rod fails to scram and the Fine Control Rod remains in its most reactive position.

3.2 Control and Safety Systems Applicability These specifications apply to the reactor control and safety systems.

Objective To specify lowest acceptable level of performance, instrument set points, and the minimum number of operable components for the reactor control and safety systems.

AGN-20 l Technical Specifications, Amendment No. * **

RSC ~Review: 'Jarmary 27, Feb 202:,@

NRC Approval: xxxx xx,aan,m-,* :23, 20£1+3/4- Page 8 of3,i+

Specification

a. The total scram withdrawal time of the safety rods and coarse control rod shall be less than 1 second.

b. TI1e average reactivity addition rate for each control or safety rod shall not exceed 0.065% Afdk per second ($0.00877 per second).

c. The safety rods and coarse control rod shall be interlocked such that:

(1) Reactor startup cannot commence unless both safety rods and coarse control rods are fully withdrawn from the core.

(2) Only one safety rod can be inserted at a time.

(3) The coarse control rod cannot be inserted unless both safety rods are fully inserted.

d. All reactor safety system instrumentation shall be operable in accordance with Table 3.1 with the exception that, with the approval of the Reactor Supervisor, Safety Channel No. 1 may be bypassed whenever the reactor is in a subcritical configuralion.coniTOl or safety rods are not in their fully *Nithdrawn position.

e. The shield water interlock shall be set to prevent startup and scram the reactor if the shield water level falls 10 inches below the highest point on the reactor shield tank manhole opening.

£ The shield water temperature interlock shall be set to prevent reactor startup and scram the reactor if the shield water temperature falls below l 5°C.

g. The seismic displacement interlock sensor shall be set to prevent reactor startup and scram the reactor during a seismic displacement.

h. A manual scram shall be provided on the reactor console.

i. A loss of electric power shall cause the reactor to scram.

j. An operable installed area radiation monitor capable of detecting gamma radiation shall be immediately available to reactor operating personnel whenever the reactor is not secured. When required monitors are inoperable, portable instruments may be substituted for any installed monitor for periods up to two weeks, while the installed monitor is being repaired.

The specifications on scram withdrawal time in conjunction with the safety system instrumentation and set points assure safe reactor shutdown during the most severe foreseeable transients. Interlocks on control and safety rods assure an orderly approach to criticality and an adequate shutdown capability. The limitations on reactivity addition rates allow only relatively slow increases of reactivity so that ample time will be available for manual or automatic scram during any operating conditions.

AGN-201 Technical Specifications, Amendment No. a,:

RSC ~Review: 10;xx xxJaru1aey 27, Feb 2023~

NRC Approval: ~.~M20F*i111,ar;, :3, 20:.Ll_++ Page 9 of3J:;-

The neutron detector channels (Nuclear Safety Channels Nos. 1 through 3) assure that reactor power levels are adequately monitored during reactor startup and operation.

Channel I shall have a required minimum count rate to ensure that a startup source is present before inserting fuel rods. Channels' 2 and 3 operability shall be checked during reactor startup by inserting safety rods 1 and 2 and observimi: adequate channel response.R:equiremeflts Ofl minimul!,l neutron levels will preve1:1t reaetor startup unless chaooels are operaele and piesponding\ and will cause a scram in the e>tent ef instn1meH£ation failure. The power levels initiate redundant automatic protective action

--<1! Comme~ted [TCP1J:'This liiµguage probably effecis our.'

understanding of the low level scrams. The new detectors at power level scrams low enough to assure safe shutdown without exceeding any Lwil\ be operable, but not necessarily RESPONDING in safety limits. The period scram conservatively limits the rate of rise of reactor power to I certain ranges.

periods which are manually controllable and will automatically scram the reactor in the event of unexpected large reactivity additions.

The AGN-20 l's negative temperature coefficient of reactivity causes a reactivity increase with decreasing core temperature. The shield water temperature interlock will prevent reactor operation at temperatures below l 5°C thereby limitiog potential reactivity additions associated with temperature decreases.

Water in the shield tank is an important component of the reactor shield and operation without the water may produce excessive radiation levels. The shield tank water level interlock will prevent reactor operation without adequate water levels in the shield tank.

The reactor is designed to withstand 0.6g accelerations and 6 cm displacements. A seismic instrument causes a reactor scram whenever the instrument receives a horizontal acceleration that causes a horizontal displacement of 1/16 inch or greater. The seismic displacement interlock assures that the reactor will be scrammed and brought to a subcritical configuration during any seismic disturbance that may cause damage to the reactor or its components.

The manual scram allows the operator to manually shut down the reactor if an unsafe or otherwise abnormal condition occurs that does not otherwise scram the reactor. A loss of electrical power de-energizes the safety and coarse control rod holding magnets causing a reactor scram and thus assuring safe and immediate shutdown in case of a power outage.

An area radiation monitor must always be available to operating personnel to provide an indication of any abnormally high radiation levels so that appropriate action can be taken to shut down the reactor and assess the hazards to personnel.

AGN-201 Technical Specifications, Amendment No. 'ii+

RSC ~Review: '1QiJae11afY 27-, Feb 2023G; NRC Approval: xxxx xxfab1<1ill'Y 23, ;?O;:;J.+lc Page 10 of

Table 3.1 Reactor control and safety systems set-point specifications.

SAFETY CHANNEL SET POINT FUNCTION - i Formatted Table Nuclear Safety Channel No. l:JHit ,'\) ~% F1:11! Seale I (Startup Count Rate 4R- Scram at levels * - - - ( Formatted: Left, Indent le~ 0.1

• Channel) Low Power ~ 0 . 5 counts/second Below the set points

~-- ... / Formatted: Centered, Indent Left: o*

Nuclear Safety Channel No.

2 (Log Power Channel) 6 watts Scram at power High Power (120% of licensed power) > 6watts J'IIHe!eaf 8a-tety Geaaael t-ie.

Sernm at settfee le¥e!s 2 (Leg Pewer Ghaf!:Bel) bew:Pawei:

~A

'fl'\...Lt

. ~ J.lcl X 1(/...:;;_aH!jlS Scram at periods Reactor Period 5 sec <5 sec Nuclear Safety Channel No.

3 (Linear Power Channel) 6 watts Scram at power High Power (120% oflicensed power) > 6watts Nuclear Safety Channel No. 5% Full Scale 3 (Linear Power Channel) Scram at levels (for ranges above < 5% of Pull Scale Low Power

• """""'* mno-~)

Manual Scram ---- Scram at operator option Alarm at or below level set to meet requirements of 10 Area Radiation Monitor = lOmR/hr CFR20 Ulllt A IS !he ommial AG'l'l ee!llral eansole am!

• UP.it B is tile ne'w l S U - w l ~ ~

Eill1/2er URit ,A, er Uait 8 will be in seR*iee anytime tile reaetor is af)ef!l!Hlg

• The transition rami:e is defined as the range at which the detector output is above noise level and is in<licatiill! 11eucron derection.

~ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - " < **,.. >================= Formatted: Font: 12 pt Formatted: Indent: Le~ 0.5" 3.3 Limitations on Experiments Applicability AGN-20 I Technical Specifications, Amendment No. 1-:.+

RSC ~Review: JU(XX Kx.l1111u~Feb 2023W.

NRC Approval: xxxx xxFebruai:* 23-, 2023+1,. Page 11 of

This specification applies to experiments installed in the reactor and its experimental facilities.

Objective To prevent damage to the reactor or excessive release of radioactive materials in the event of an experiment failure.

Specification

a. Experiments containing materials corrosive to reactor components or which contain liquid or gaseous, fissionable materials shall be doubly encapsulated.

b. Explosive materials shall not be inserted into experimental facilities or the reactor or stored within the confines of the reactor facility.

AGN-201 Technical Specifications, Amendment No. ii;;:.

RSC ~Review: xx.xx x:xJanoory 27, Feb 2023(µ NRC Approval: ,'f:,XX xx:i;:ei1/4~, 2Q2j-i-+ Page 12 of

c. The radioactive material content, including fission products of any experiment shall be limited so that the complete release of all gaseous, particulate, or volatile components from the experiment will not result in:

(1) A total effective dose equivalent to any person occupying an unrestricted area continuously for a period of two hours starting at the time of release in excess of0.l mSv (10 mrem) as a result of any airborne pathway, or (2) A total effective dose equivalent to any person occupying an unrestricted area continuously for a period of two hours starting at the time ofrelease in excess of 1 mSv (100 mrem) as a result of all pathways, or (3) A total effective dose equivalent to any radiation worker occupying a restricted area during the length of time required to evacuate the restricted area in excess of 50 mSv (5 rem).

These specifications are intended to reduce the likelihood of damage to reactor components and/or radioactivity releases resulting from an experiment failure and to protect operating personnel and the public from excessive radiation doses in the event of an experiment failure. Specification 3.3c conforms to the regulatory position put forth in 10 CFR 20, issued January, 1993.

3.4 Radiation Monitoring, Control and Shielding Applicability These specifications apply to radiation monitoring, control, and reactor shielding required during reactor operation.

Objective To protect facility personnel and the public from radiation exposure.

Specification

a. An operable portable and an installed radiation survey instrument capable of detecting gamma radiation shall be immediately available to reactor operating personnel whenever the reactor is not secured.

b. The reactor room shall be considered a restricted area whenever the reactor is not secured.

c. The following shielding requirements shall be fulfilled during reactor operation:

(1) The reactor shield tank shall be filled with water to a height within 10 inches of the highest point on the manhole opening.

AGN-201 Technical Specifications, Amendment No. -~-

RSC ~Review: ~xJaauary 27, Feb 201l_O;l NRC Approval: Ii,)5XX x x ~ ~ , 20i.,++ Page 13 of

(2) The thermal column shall be filled with water or graphite except during a critical experiment (core loading) or during measurement of reactivity worth of thermal column water or graphite, or when the neutron radiography collimator is being used, or other approved experiments which require the thermal column to be empty.

(3) The movable shield doors above the thermal column shall be maintained in a closed position whenever the reactor is operated at a power greater than 0.5 watts.

Radiation surveys perfonned under the supervision of a qualified health physicist have shown that the total gamma, thermal neutron, and fast neutron radiation dose rate in the reactor room, at the closest approach to the reactor outside the designated high radiation area is less than 250 µSv/hr (25 mrem/hr) at reactor power levels less than 5.0 watts.

The facility shielding in conjunction with designated restricted radiation areas is designed to limit radiation doses to facility personnel and to the public to a level below 10 CFR 20 limits under operating conditions, and to a level below Criterion 19, Appendix A, 10 CFR 50 recommendations under accident conditions.

AGN-201 Technical Specifications, Amendment No. c~:

RSC ~Review: ~JaR!illfj' 27-, Feb 20fl.@

NRC Approval: °:;;:x xx~ry '.!3, 20:;Q_.J+ Page 14of

4.0 SURVEILLANCE REQUIREMENTS Actions specified in this section are not required to be performed if during the specified surveillance period the reactor has not been brought critical or is maintained in a shutdown condition extending beyond the specified surveillance period. However, the surveillance requirements must be fulfilled prior to subsequent startup of the reactor.

4.1 Reactivity Limits Applicability This specification applies to the surveillance requirements for reactivity limits.

Objective To assure that reactivity limits in Sectionfor SpeeifieatioB:s 3.1 are not exceeded.

Specification

a. Safety and control rod reactivity worths shall be measured annually.

b. Total excess reactivity and shutdown margin shall be determined annually.

c. The reactivity worth of an experiment shall be estimated or measured, as appropriate, before or during the first startup subsequent to the experiment's insertion.

The control and safety rods are inspected and their reactivity worths measured annually to assure that no degradation or unexpected changes have occurred which could adversely affect reactor shutdown margin or total excess reactivity. The shutdown margin and total excess reactivity are determined to assure that the reactor can always be safely shutdown with one rod not functioning and that the maximum possible reactivity insertion will not result in reactor periods shorter than those that can be adequately terminated by either operator or automatic action. Based on experience with AGN reactors, significant changes in reactivity or rod worth are not expected within a 15-month period.

4.2 Control and Safety System Applicability This specification applies to the surveillance requirements of the reactor control and safety system.

Objective To assure that the reactor control and safety systems are operable as required I;_

Sccuonby 6peemeat1on 3.2.

AGN-20 I Technical Specifications, Amendment No.

RSC ~Review: ~Jaimary 27, Feb 2023W.

NRC Approval: tc£9'. xxieeru:tr:* ~~, 20:U++ Page 15 of

Specification

a. Safety and control rod scram times and average reactivity insertion rates shall be measured allllually.

b. Safety and control rods and drives shall be inspected for deterioration at intervals not to exceed 2 years.

c. A channel test of the following safety challllels shall be performed prior to the first reactor startup of the day or prior to each operation extending more than one day.

Nuclear Safety Channel No. 1. No. 2, and No. 3 Manual

&eFa!H Nuclear Safetv Channel 1 Nuclear Safetv Channel 2 Nuclear Safety Channel 2 Manual Scram

d. A channel test of the seismic displacement interlock shall be performed annually.

e. A channel check of the following safety channels shall be performed daily whenever the reactor is in operation:

~hielear Safety Channel ~lo. 1, Ne. 2, and ~Jo. 3 Nuclear Safety Channel l Nuclear Safety Channel 2 i'ntdear 6arery 1..,nanne1 :,

f. Prior to each day's operation or prior to each operation extending more than one day, Safety Rod--W-s, 1 shall be inserted and scrammed to verify operability of the manual scram system.

g. The period, count rate, and power level measuring channels shall be calibrated and set point verified annually.

h. The shield water level interlock, shield water temperature interlock, and seismic displacement safety channel shall be calibrated by perturbing the sensing element to the appropriate set point. These calibrations shall be performed annually.

i. The radiation monitoring instrumentation shall be calibrated annually.

Basis The channel tests and checks required daily or before each startup will assure that the safety channels and scram functions are operable. Based on operating experience with reactors of this type, the annual scram measurements, channel calibrations, set point verifications, and inspections are of sufficient frequency to assure, with a high degree of confidence, that the safety system settings will be within acceptable drift tolerance for operation.

AGN-201 Technical Specifications, Amendment No. 6 RSC AfljmwalReview: !QQQi_MJa,mary 27-, Feb 20I2_@

NRC Approval: xxxx xxi'2brnar:* *,J, 2023-1-+ Page 16 of

4.3 Reactor Structure Applicability This specification applies to the surveillance requirements for reactor components other than control and safety rods.

AGN-201 Technical Specifications, Amendment No.

RSC t\pjmwalReview: 'J0.H11ary 27-, Feb 20;/JllJ NRC Approval: ;iJIM.l;lf.1/4.~, 20;/J+i- Page 17 of

Objective To assure integrity of the reactor structures.

Specification

a. The shield tank shall be visually inspected every two years. If apparent excessive corrosion or other damage is observed, corrective measures shall be taken prior to subsequent reactor operation.

b. Visual inspection for water leakage from the shield tank shall be performed prior to each startup. Leakage sufficient to leave a puddle on the floor shall be corrected prior to subsequent reactor operation.

Basis Based on experience with reactors ofthis type, the frequency of inspection and leak test requirements of the shield tank will assure capability for radiation protection during reactor operation.

4.4 Radiation Monitoring and Control Applicability This specification applies to the surveillance requirements of the radiation monitoring and control systems.

Objective To assure that the radiation monitoring and control systems are operable and that all radiation areas within the reactor facility are identified and controlled as required in Scctionby Specification 3.4.

Specification

a. All portable and installed radiation survey instruments assigned to the reactor facility shall be calibrated annually under the supervision of the Radiation Safety Officer.

b. Prior to each day's reactor operation or prior to each reactor operation extending more than one day, the reactor room high radiation alarm shall be verified to be operable.

c. A radiation survey of the reactor room and reactor control room shall be performed under the supervision of the Radiation Safety Officer annually, to determine the location of radiation and high radiation areas corresponding to reactor operating power levels.

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The periodic calibration of radiation monitoring equipment and the surveillance of the reactor room high radiation area alarm will assure that the radiation monitoring and control systems are operable during reactor operation.

The periodic radiation surveys will verify the location of radiation and high radiation areas and will assist reactor facility personnel in properly labeling and controlling each location in accordance with 10 CFR 20.

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5.0 DESIGN FEATURES 5.1 Reactor a The reactor core, including control and safety rods, contains approximately 670 grams of 235U in the form of <20% enriched U02 dispersed in approximately 11 kilograms of polyethylene. The lower section of the core is supported by an aluminum rod hanging from a fuse link. The fuse melts at temperatures below l 20°C causing the lower core section to fall away from the upper section reducing reactivity by at least 5% ~k/k. Sufficient clearance between core and reflector is provided to insure free fall of the bottom half of the core during the most severe transient.

b. The core is surrounded by a 20-cm-thick high-density (1.75 gm/cm3) graphite reflector followed by a IO-cm-thick lead gamma shield. The core and part of the graphite reflector are sealed in a fluid-tight aluminum core tank designed to contain any fission-product gases that might leak from the core.

c. The core, reflector, and lead shielding are enclosed in and supported by a fluid-tight steel reactor tank. An upper or "thermal column tank" may serve as a shield tank when filled with water or as a thermal column when filled with graphite.

d The 198-cm-diameter, fluid-tight shield tank is filled with water constituting a 55-cm-thick fast neutron shield. The fast neutron shield is formed by filling the tank with approximately 3785 liters of water. The complete reactor shield shall limit doses to operating personnel in restricted and unrestricted areas to levels less than permitted by 10 CFR 20 under operating conditions.

e. Shielding is provided by a concrete wall constructed of 4" x 8" x 16" concrete 11 blocks and 4" x 8 x 12" barytes concrete blocks for 5 Wwatt operation. The blocks are held to close dimensional tolerance in manufacture and stacked in such a manner that voids in the completed wall are at a minimum. Near the beam ports and glory hole, high-density blocks are used between 40 inches and 112 inches above the base. The use of these blocks further reduces radiation level in these areas. Overhead shielding is provided by 8-inch-thick barytes blocks (minimum density 3.7 gm/cm3). Results of shielding calculations are summarized in the ISU AGN-201 Reactor Safety Analysis Report.

f. Two safety rods and one control rod (identical in size) contain up to 20 grams of 235 U each in the same form as the core material. These rods are lifted into the core by electromagnets, driven by reversible DC motors through lead screw assemblies.

De-energizing the magnets cause a spring-driven, gravity-assisted scram. The fourth rod or fine control rod (approximately one-half the diameter of the other rods) is driven directly by a lead screw. This rod may contain polyethylene with or without fuel.

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5.2 Fuel Storage Fuel, including fueled experiments and fuel devices not in the reactor, shall be stored in locked rooms in the College of Engineering laboratories. The storage array shall be such that kelfis no greater than 0.9 for all conditions of moderation and reflection.

5.3 Reactor Room a The reactor room houses the reactor assembly and accessories required for its operation and maintenance.

b. The reactor room is a separate room in the Lillibridge Engineering Laboratory, constructed with adequate shielding and other radiation protective features to limit doses in restricted areas and unrestricted areas, to levels no greater than permitted by 10 CFR 20, under normal operating conditions, and to a level below Criterion 19, Appendix A, 10 CFR 50 recommendations under accident conditions.

c. Access doors to the reactor room are self-locking.

AGN-201 Technical Specifications, Amendment No. __ .-

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6.0 ADMJNISTRATIVE CONTROLS 6.1 Organization The administrative organization for control of the reactor facility and its operation shall be as set forth in !:figure fi,_l. The authorities and responsibilities set forth below are designed to comply with the intent and requirements for administrative controls of the reactor facility as set forth by the Nuclear Regulatory Commission.

6.1.1 University Officer The University officer is an administrative officer responsible for the University and in whose name the application for licensing is made.

6.1.2 Dean, College of Engineering The dean of the College of Engineering is the administrative officer responsible for the operation of the College ofEngineering.

6.1.3 Reactor Administrator The Reactor Administrator (RA) is the administrative officer responsible for the operation of the AGN-201M Reactor Facility. fu this capacity the RA shall have final authority and ultimate responsibility for the operation, maintenance, and safety of the reactor facility within the limitations set forth in the facility license. The Reactor Administrator shall be responsible for appointing the Reactor Supervisor, who reports to the Reactor Administrator.

The RA shall seek the advice and approval of the Radiation Safety Committee and/or the Reactor Safety Committee in all matters concerning unresolved safety questions, new experiments and new procedures, and facility modifications which might affect safety. The RA shall he an ex officio member of the Reactor Safety Committee.

6.1.4 Reactor Supervisor The Reactor Supervisor (RS) shall be responsible for the preparation, promulgation, and enforcement of administrative controls including all rules, regulations, instructions, and operating procedures to ensure that the reactor facility is operated in a safe, competent, and authorized manner at all times.

The RS shall direct the activities of operators and technicians in the daily operation and maintenance of the reactor; schedule reactor operations and maintenance; be responsible for the preparation, authentication, and storage of all prescribed logs and operating records; authorize all experiments, procedures, and changes thereto which have received the approval of the Reactor Safety Committee and/or the Radiation Safety Committee and the RA; and be responsible for the preparation of experimental procedures involving the use of the reactor. The RS shall hold a valid Senior Reactor Operator's license issued by the U.S. Nuclear Regulatory Commission.

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University Officer<!)

I I

Dean College ofEngineering(l.2)

Radiation Safety Committe!

I Reactor Safety Committee I

Reactor Administrato/2*31 -------------------------*

I Reactor Supervisor3*4l ------------------------*"

I Authorized Operatori5l Reactor Operators<Sl Certified Observers

(!)University Officer and Dean of the College ofEngineering maybe same individual.

12) Dean of the College of Engineering and Reactor Administrator may be same individual.

(3) Reactor Administrator and Reactor Supervisor may be same individual.

4

(  ! Requires NRC Senior Reactor Operators License.

(5) Requires NRC Reactor Operators License except where exempt per IO CFR 55. 13.

Figure fi,,l. Administrative Organization of the ISU AGN-201M Reactor Facility, NRC License R-110.

Persons holding positions on the Administrative organization shall meet or exceed the qualification requirements of ANSI/ANS-15.4-1988, "Selection and Training of Personnel for Research Reactors."

6.1.5 Reactor Operators Reactor Operators shall be responsible for the manipulation of the reactor controls, monitoring of instrumentation, operation of reactor-related equipment, and maintenance of complete and current records during operation of the facility. Reactor Operators shall hold a valid Reactor Operator's license issued by the U.S. Nuclear Regulatory Commission.

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6.1.6 Authorized Operators Individuals authorized by the Reactor Supervisor to operate the reactor controls and who do so with the knowledge of the Reactor Supervisor and under the direct supervision of a Reactor Operator.

6.1.7 Certified Observers Individuals certified by the Reactor Supervisor as qualified to activate manual scram and initiate emergency procedures in the event of an emergency situation during reactor operation.

6.1.8 Reactor Safety Committee The Reactor Safety Committee shall be responsible for, but not limited to, reviewing and approving safety standards associated with the use of the reactor facility; reviewing and approving all proposed experiments and procedures and changes thereto; reviewing and approving all modifications to the reactor facility which might affect its safe operation; detennining whether proposed experiments, procedures, or modifications do not require a license amendment per the criteria listed in 10 CFR 50.59, and are in accordance with these Technical Specifications; conducting periodic audits of procedures, reactor operations and maintenance, equipment performance, and records; review an reportable occurrences and violations of these Technical Specifications, evaluating the causes of such events and the corrective action taken and recommending measures to prevent reoccurrence; reporting all their findings and recommendations to prevent reoccurrence; reporting all their findings and recommendations concerning the reactor facility to the Reactor Administrator.

6.1.9 Radiation Safety Committee The Radiation Safety Committee shall advise the University administration and the Radiation Safety Officer on all matters concerning radiological safety at University facilities.

6.1.10 Radiation Safety Officer The Radiation Safety Officer shall review and approve all procedures and experiments involving radiological safety,~ enforce all federal, state, and university rules, regulations, and procedures relating to radiological safety.. ; k .*i:t.id perform routine radiation surveys of the reactor facility and report his findings to the Reactor Administrator,. He shall provide personnel dosimetry and keep records of personnel radiation exposure,~al+ advise the Reactor Administrator on all matters concerning radiological safety at the reactor facility. The Radiation Safety Officer shall be an ex officio member of the Reactor Safety Committee.

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6.1.11 Operating Staff

a. The minimum operating staff during any time in which the reactor is not secured shall consist of:

( 1) One licensed Reactor Operator in the reactor control room.

(2) One Certified Observer in the reactor control room.

(3) One licensed Senior Reactor Operator readily available on call.

This requirement can be satisfied by having a licensed Senior Reactor Operator perform the duties stated in paragraph (1) or (2) above or by designating a licensed Senior Reactor Operator who can be readily contacted by telephone and who can arrive at the reactor facility within 30 minutes.

b. A licensed Senior Reactor Operator shall supervise all reactor maintenance or modification which could affect the reactivity of the reactor.

c. A listing of reactor facility personnel by name and phone number shall be conspicuously posted in the reactor control room.

6.2 StaffOualifications The Reactor Administrator, the Reactor Supervisor, licensed Reactor Operators, and technicians performing reactor maintenance shall meet the minimum qualifications set forth in ANSI/ANS-15.4, "Standards for Selection and Training of Personnel for Research Reactors." Reactor Safety Committee members shall have a minimum of five (5) years experience in their profession or a baccalaureate degree and two (2) years of professional experience. Generally, these committee members will be made up of University faculty, but outside experience will be sought in areas where additional experience is considered necessary by the Reactor Administrator.

6.3 Training The Reactor Supervisor shall be responsible for directing training as set forth in ANSI/ANS-15.4, "Standards for Selection and Training of Personnel for Research Reactors." All licensed reactor operators shall participate in requalification training as set forth in 10 CFR 55.

6.4 Reactor Safety Committee 6.4.1 Meetings and Quorum The Reactor Safety Committee (RSC) shall meet as often as deemed necessary by the RSC chair but shall meet at least annually. A quorum for the conduct of official business shall consist of not less than one-half of the current RSC membership and shall include the Chair or designated alternate.

At no time shall the operating organization comprise a voting majority of the members at any RSC meeting.

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6.4.2 The RSC shall review:

a. Safety evaluations for changes to procedures, equipment or systems, and tests or experiments, conducted without Nuclear Regulatory Commission approval under the provision of 10 CPR 50.59, to verify that such actions do not constitute an unreviewed safety question.

b. Proposed changes to procedures, equipment or systems that change the original intent or use, are non-conservative, or those tliat involve an unreviewed safety question as defined in 10 CFR 50.59.

c. Proposed tests or experiments which are significantly different from previously approved tests or experiments, or those that involve an unreviewed safety question as defined in 10 CFR 50.59.

d. Proposed changes in Technical Specifications or other license documents.

e. Violations of applicable statutes, codes, regulations, orders, Technical Specifications, license requirements, or of internal procedures or instructions having nuclear safety significance.

f. Significant operating abnormalities or deviations from normal and expected performance of facility equipment that affect nuclear safety.

g. Reportable occurrences.

h. Audit reports.

6.4.3 Audits Audits of facility activities shall be performed under the cognizance of the RSC but in no case by the personnel responsible for the item audited. These audits shall examine the operating records and encompass but shall not,be limited to the following:

a. The conformance of facility operation to the Technical Specifications and applicable license condition, at least annually.

b. The performance, training, and qualifications of the entire facility staff, at least every two years.

c. The results of all actions taken to correct deficiencies occurring in facility equipment, structures, systems or method of operation that affect nuclear safety, at least annually.

AGN-20 l Technical Specifications, Amendment No. :

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d. The Facility Emergency Plan and implementing procedures at least every two years.

e. The Facility Security Plan and implementing procedures, at least every two years.

6.4.4 Authority The RSC shall report to the dean of the College ofEngineering and shall advise the Reactor Administrator on those areas of responsibility outlined in Section 6.1.6 of these Technical Specifications.

6.4.5 Minutes of the Reactor Safety Committee The RSC Chair shall direct the preparation, maintenance, and distribution of minutes of its activities. These minutes shall include a summary of all meetings, actions taken, audits, and reviews. Minutes should be distributed to all administrative levels and RSC members within 3 months after each meeting.

6.5 Approvals The procedure for obtaining approval for any change, modification or procedure which requires approval of the RSC shall be as follows:

a. The Reactor Supervisor shall prepare the proposal for review and approval by the Reactor Administrator.

b. The Reactor Administrator shall submit the proposal to the RSC for review, comment, and possible approval.

c. The RSC shall approve the proposal by majority vote.

d. The Reactor Administrator shall provide final approval after receiving the approval oftheRSC.

6.6 Procedures There shall be written procedures that cover the following activities:

a. Startup, operation, and shutdown of the reactor.

b. Fuel movement and changes to the core and experiments that could affect reactivity.

c. Conduct of irradiations and experiments that could affect the safety of the reactor.

d. Preventive or corrective maintenance which could affect the safety of the reactor.

e. Surveillance, testing, and calibration of instruments, components and systems as specified in Section 4.0 of these Technical Specifications.

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f. Implementation of the Security Plan and Emergency Plan.

g. Radiation Safety Protection for all reactor-related personnel.

The above listed procedures shall be approved by the Reactor Administrator and the RSC. Temporary procedures which do not change the intent of previously approved procedures and which do not involve any unreviewed safety question may be employed on approval by the Reactor Supervisor.

6.7 Experiments

a. Prior to initiating any new reactor experiment, an experimental procedure shall be prepared by the Reactor Supervisor and reviewed and approved by the Reactor Administrator and the RSC.

b. Approved experiments shall only be performed under the cognizance of the Reactor Supervisor.

6.8 Safety Limit Violation The following actions shall be taken in the event a Safety Limit is violated:

a. The reactor will be shut_down immediately and reactor operation will not be resumed without authorization by the Nuclear Regulatory Commission (NRC).

b. The Safety Limit violation shall be reported to the Reactor Administrator immediately. The violation shall be reported to the NRC and the RSC Chair or designated alternate not later than the next working day.

c. A Safety Limit Violation Report shall be prepared for review by the RSC. This report shall describe the applicable circumstances leading to the violation including, when known, the cause and contributing factors; the effects of the violation upon facility components, systems, or structures and on the health and safety of personnel and the public; and corrective action to prevent recurrence.

d. A Safety Limit Violation Report shall be submitted to the NRC and RSC within 14 days of the violation.

6.9 Reporting Requirements In addition to the applicable reporting requirements of Title 10, Code of Federal Regulations, the following reports shall be submitted to the Director, Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Commission, Attention: Document Control Desk, Washington, D.C., 20555 AGN-201 Technical Specifications, Amendment No.

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6.9.l Annual Operating Report Routine operating reports covering the operation of the reactor during the previous calendar year should be submitted prior to June 30 of each year.

The annual operating reports made by licensees shall provide a comprehensive summary of the operating experience having safety significance that was gained during the year, even though some repetition of previously reported information may be involved. References in the annual operating report to previously submitted reports shall be clear.

Each annual operating report shall include:

(1) A briefnarrative summary of:

a. Changes in facility design, performance characteristics, and operating procedures relating to reactor safety that occurred during the reporting period.

b. Results of major surveillance tests and inspections.

(2) A monthly tabulation showing the hours the reactor was operated and the energy produced by the reactor in watt-hours.

(3) List of the unscheduled shutdowns, including the reasons therefore and corrective action taken, if any.

(4) Discussion of the major safety-related corrective maintenance performed during the period, including the effects, if any, on the safe operation of the reactor and the reasons for the corrective maintenance required.

(5) A brief description of:

a. Each change to the facility to the extent that it changes a description of the facility in the application for license and amendments thereto.

b. Changes to the procedures-a!< described in t i l e ~

Technical Specifications.

c. Any new or untried experiments or tests performed during the reporting period.

(6) A summary of the safety evaluation made for each change, test, or experiment not submitted for NRC approval pursuant to 10 CFR 50.59 which clearly shows the reason leading to the conclusion that neither a change to the Technical Specifications nor a license amendment per 10 CFR 50.59(c)(2)(i) through (viii) was required.

(7) A summary of the nature and amount of radioactive effluents released or discharged to the environs beyond the effective control of the licensee as determined at or prior to the point of such release or discharge.

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a. Liquid Waste Total estimated quantity ofradioactivity released (in curies) and total volume (in liters) of effluent water (including diluent) released.

b. Airborne Waste Total estimated quantity of radioactivity released (in curies) determined by an approved sampling and counting method.

c. Solid Waste (i) Total amount of solid waste packaged (in cubic meters).

(ii) Total activity in solid waste (in curies).

(iii) The dates of shipments and disposition (if shipped off site).

(8) A description of the results of any environmental radiological surveys performed outside the facility.

(9) Radiation Exposure - A summary of radiation exposures received during the reporting period by facility personnel and visitors.

6.9.2 Reportable Occurrences Reportable occurrences, including causes, probable consequences, corrective actions and measures to prevent recurrence, shall be reported to the NRC.

Supplemental reports may be required to fully describe final resolution of the occurrence. In case of corrected or supplemental reports, an amended licensee event report shall be completed and reference shall be made to the original report date.

a. Prompt Notification with Written Follow-up The types of events listed below are considered reportable occurrences and shall be reported as expeditiously as possible by telephone and confirmed by overnight mail, mailgram, or facsimile transmission to the NRC Document Control Desk no later than the first working day following the event, with a written follow-up report within two weeks.

Information provided shall contain narrative material to provide complete explanation of the circumstances surrounding the event.

(1) Failure of the reactor protective system subject to limiting safety system settings to initiate the required protective function by the time a monitored parameter reached the set point specified as the limiting safety system setting in the technical specifications.

(2) Operation of the reactor when any parameter or operation subject to a limiting condition is found to be less conservative than the AGN-201 Technical Specifications, Amendment No. _* 0 RSC-AjljffiwalReview: ~amiary 27-, Feb 20.:UlB NRC Approval: ?\!i!i.X xxi-- ,,,,rt.:,r:: ~-, 20£,++/-- Page 30 of

limiting condition for operation established in the technical specifications, without evaluation and permitted remedial action.

(3) Abnormal degradation discovered in a fission-product barrier.

(4) Reactivity balance anomalies involving:

(i) Disagreement between expected and actual critical positions exceeding 0.3% .1k/k; (ii) Exceeding excess reactivity limits; (iii) Shutdown margin less conservative than specified in Technical Specifications.

(5) Failure or malfunction of one (or more) component(s) which prevents, or could prevent, by itself, the fulfillment of the functional requirements of systems used to cope with accidents analyzed in the Safety Analysis Report.

(6) Personnel error or procedural inadequacy which prevents, or could prevent, by itself, the fulfillment of the functional requirements of systems required to cope with accidents analyzed in the Safety Analysis Report.

(7) Errors discovered in the transient or accident analyses or in the methods used for such analyses as described in the Safety Analysis Report or in the basis of the Technical Specifications that have permitted reactor operation in a manner less conservative than assumed in the analyses.

(8) Performance of structures, systems, or components that requires remedial action or corrective measures to prevent operation in a manner less conservative than assumed in the accident analyses in the Safety Analyses Report or Technical Specifications basis, or discovery during plant life of conditions not specifically considered in the Safety Analysis Report or Technical Specifications that require remedial action or corrective measures to prevent the existence or development of an unsafe condition.

(9) Deployment of the thermal fuse.

6.9.3 Special Reports Special reports which may be required by the NRC shall be submitted to the U.S. NRC Document Control Desk within the time period specified for each report. These reports include notification of changes in Level 1, 2, or 3 administration, as defined in ANSI/ANS-15.4 and shown in Figure 1, which shall be reported within 45 days of such a change.

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6.10 Record Retention 6.10.1 Records to be retained for a period of at least five years:

a. Operating logs or data which shall identify:

(1) Completion of pre-startup checkout, startup, power changes, and shutdown of reactor.

(2) Installation or removal of fuel elements, control rods or experiments that could affect core reactivity.

(3) Installation or removal of jumpers, special tags or notices, or other temporary changes to reactor safety circuitry.

(4) Rod worth measurements and other reactivity measurements.

b. Principal maintenance operations.

c. Reportable Occurrences.

d. Surveillance activities required by technical specifications.

e. Facility radiation and contamination surveys.

f. Experiments performed with the reactor.

This requirement may be satisfied by the normal operations log book plus:

(.1) Records ofradioactive material transferred from the facility as required by license.

(2) Records required by the RSC for the performance of new or special experiments.

g. Records of training and qualification for members ofthe facility staff.

h. Changes to operating procedures.

6.10.2 Records to be retained for the life of the facility:

a. Gaseous and liquid radioactive effluents released to the environmentenvirens.

b. Appropriate off-site environmental monitoring surveys.

c. Fuel inventories and fuel transfers.

d. Radiation exposures for all personnel.

e. Updated as-built drawings for the facility.

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f. Records of transient or operational cycles for those components designed for a limited number of transients or cycles.

g. Records of reviews performed for changes made to procedures or equipment or reviews of tests and experiments pursuant to 10 CFR 50.59.

h. Records of meetings of the RSC.

AGN-201 Technical Specifications, Amendment No. ;i.;:

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