ML14184B341

Idaho State University, Transmittal of Annual Report for Reactor License R-110

ML14184B341
Person / Time
Site:	Idaho State University
Issue date:	07/01/2014
From:	Grimes H D Idaho State University, Pocatello
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML14184B341 (18)

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Idaho StateUNIVERSITYOffice for Research and Economic Development921 South 8th Avenue, Stop 8130 0 Pocatello, Idaho 83209-8130July 1, 2014Document Control DeskU.S. Nuclear Energy Commission One White Flint NorthMail Stop OWEN-1 E1311555 Rockville PikeRockville, MD 20852-2738 315-415-1404

SUBJECT:

Transmittal of Annual Report for Reactor License R-110Attached are two copies of the Annual Report for the AGN-201 Reactor at Idaho StateUniversity, License R-1 10, Docket 4I 50.284.Sincerely.Howard Grimes, PhDVice President for Research and Economic Developmentc: Mr. Xiaosong Yin, Research and Test Reactors Licensing BranchMail Stop 0-12 D 03Ac~DPhone: (208) 282-3134

• Fax: (208) 282-4487

• www.isu.edu/researchISU is an Equal Opportunity Employer................................................................................~

State of Idaho )S.S.County of Bannock)On this Ist day of July, in the year of 2014, before me, Kathryn J. Harris, a notary public, personally appearedHoward Grimes, personally known to me to be the person(s) whose name(s) is (are) subscribed to the withininstrument, and acknowledged to me that he (she)(they) executed the same.My Commission Expires on .

Idaho State UniversityAGN-201M Reactor FacilityLicense R-110, Docket No. 50-284Annual Operating Report for 2013 Calendar Year1. Narrative SummaryA. Changes in Facility Design, Performance Characteristics, and Operating Procedures:There were no changes in facility design, performance characteristics, and operatingprocedures relating to reactor safety or operations during the reporting period.B. Results of Major Surveillance Tests and Inspections:(1) The period, count rate, and power level measuring channels were calibrated and setpoints were verified. Channels 1, 2, & 3 were tested 9/6/2013, 6/7/2013 & 9/5/2013respectively.(2) Power level (3/18/13) and period check (6/7/2013) experiments were performed withsatisfactory results.(3) The shield water tank was inspected (6/4/2013) and no leaks or excessive corrosionwere observed. The water level interlock tested satisfactorily (6/4/2013).(4) The seismic displacement & temperature interlocks were tested and found satisfactoryon 9/6/2013 and 9/4/2013 respectively.(5) (a) Control element capsules (cladding) were inspected (6/7/2013) and found to be ingood condition with no evidence of deterioration since the previous inspection.(b) The control rod drive mechanisms were inspected (6/7/2013) and tested withsatisfactory results.(c) Ejection times were measured for all SCRAM-able rods and found to be less than Isecond.(d) The reactivity worth of all safety and control rods were measured, as well as thetime required to drive each rod to its fully inserted position. Reactivity insertion rateswere determined to be less than 0.020%Ak/k s-' ($0.027 s-1) for all rods.(e) On 9/13/13 the shutdown margin with both the most reactive- SCRAMN-ablerod -andthe fine control rod fully inserted was determined to be 1.64%Ak/k ($2.22) and satisfiesthe requirement that it be greater than l%Ak/k.(f) All surveillances were within the appropriate Technical Specification requirements.C. Minor ViolationAs a result of the annual inspection by the Nuclear Regulatory Commission, conducted inOctober 2013, a Level IV Violation was assessed. The Violation involved not havingsignatures affixed to all of the signature lines on several of the operator re-qualificationforms. A response to the Violation was submitted on December 18, 2013, indicating that it Idaho State University AGN-201 M Reactor2013 Annual ReportPage 2 of 8was confirmed, from the Reactor Log, that those operations (control console exam) hadbeen conducted for the particular operators, but were not sufficiently recorded. It was alsoindicated that unnecessary duplication of signature lines were being eliminated on a revisedre-qualification form that would be put into effect within 30 days.2. Operating History and Energy Output.The reactor was operated at power levels up to 4.9 watts for a total of 521 watt-hours of thermalenergy during this reporting period. A summary of monthly operations for 2013 is given inTable I.Table I. Summary of Monthly Reactor Operations(1 January 2013 through 31 December 2013)MonthJanuaryFebruaryMarchAprilMayJuneJuneAugustSeptemberOctoberNovemberDecemberTotalEnergy (W-hr)19.622.969.510.715.226.4122.4141.33.931.657.20.3521.0The 0.521 kWh consumed 26.4 micrograms of U-235.During the calendar year, a number of students went through reactor operator training. Duringthe calendar year, three students took NRC licensing exams. Two were awarded Reactor-Operator (RO) licenses and one was awarded a Senior Reactor-Operator (SRO) license.3. A. Unscheduled Shutdowns and Corrective Actions Taken.None.B. Inadvertent Scrams and Action Taken.There were 56 inadvertent scrams during this reporting period. Table I1 summarizes theinadvertent scrams, known or suspected cause, and action taken.

Idaho State University AGN-201M Reactor2013 Annual ReportPage 3 of 8Table 11. Summary of Inadvertent Scrams(1 January 2013 through 31 December 2013)Date Time Scram Type Cause Action1/10/13 12:27 Channel I Low Range Change Error RestartInvestigate1/15/13 11:19 Channel 2 High Signal Irregularity (-3.5 W max power reached) & Restart1/15/13 13:51 Channel 3 High Range Change Error Restart1/15/13 17:14 Channel 3 Low Range Change Error Restart1/16/13 10:10 Channel I Low Raising Detector Caused Additional Signal Noise RestartInvestigate1/17/13 11:45 Period Signal Irregularity in Channel 2 & Restart1/18/13 13:08 Channel I Low Range Change Error Restart1/18/13 15:11 Channel 1 Low Unknown RestartInvestigate1/21/13 11:41 Channel 2 High Scram Point Set Too Low & Restart1/21/13 12:38 Channel I High Range Change Error Restart1/21/13 14:01 Channel I Low Suspected Electrical Transient Restart1/21/13 14:30 Channel 1 Low Suspected Electrical Transient Restart1/21/13 15:03 Channel 1 Low Suspected Electrical Transient Restart1/24/13 10:07 Channel I Low Suspected Electrical Transient Restart1/24/13 12:06 Channel 1 High Range Change Error Restart1/25/13 11:11 Channel I Low Suspected Electrical Transient Restart3/4/13 16:52 Channel 2 Low Attempting To Operate At Too Low Of Power Restart3/4/13 17:01 Period Signal Irregularity Restart3/16/13 16:44 Period Experiment Removed To Quickly Restart3/16/13 16:52 Channel 1 High Range Change Error Restart3/16/13 16:57 Channel 2 Low Attempting To Operate at Too Low Of Power Restart4/1/13 15:40 Channel 3 Low Signal Irregularity During Range Change Restart4/17/13 10:05 Channel 3 High Range Change Error Restart6/14/13 10:47 Period Signal Irregularity Restart6/14/13 11:39 Period Signal Irregularity Restart6/14/13 15:30 Period Signal Irregularity Shutdown6/25/13 10:08 Channel 3 Low Signal Irregularity During Range Change Restart6/26/12 13:01 Channel 3 High Signal Irregularity During Range Change Restart6/26/13 19:59 Period Tubes Not Warmed Up Restart7/1/13 13:48 Channel 3 High Signal Irregularity During Range Change Restart7/2/13 11:48 Period Operator Error RestartInvestigate7/2/13 12:01 Channel 2 Low Tubes Not Warmed Up & Restart7/12/13 8:58 Channel 3 High Signal Irregularity During Range Change Restart8/8/13 13:46 Channel 3 High Range Change Error Restart8/15/13 15:02 Channel 3 Low Bumped The Console Restart Idaho State University AGN-20 1 M Reactor2013 Annual ReportPage 4 of 88/15/13 18:58 Channel 3 Low Signal Irregularity During Range Change Restart8/16/13 11:05 Channel 3 Low Signal Irregularity During Range Change Restart8/16/13 11:25 Channel 3 Low Signal Irregularity During Range Change Restart8/16/13 11:58 Channel 3 Low Signal Irregularity During Range Change Restart8/16/13 12:08 Channel 3 Low Signal Irregularity During Range Change Restart8/16/13 12:24 Channel 3 Low Signal Irregularity During Range Change Restart8/16/13 13:04 Channel I Low Range Change Error Restart8/19/13 12:43 Channel 3 Low Bumped Console RestartWait &8/21/13 8:52 Channel 2 Low Tubes Not Warmed Up Restart9/4/13 14:58 Period Signal Irregularity RestartWait &9/13/13 12:35 Period Tubes Not Warmed Up Restart9/13/13 14:43 Channel 2 Low Signal Irregularity Shutdown9/25/13 15:00 Chanel 3 Low Signal Irregularity During Range Change RestartInspect &9/25/13 15:06 Period Signal Irregularity Restart10/2/13 10:26 Channel 3 Low Signal Irregularity During Range Change Restart10/2/13 10:31 Channel 3 Low Attempting To Operate at Too Low Of Power RestartHeat Room10/9/13 14:29 Temp Interlock Ambient Temperature Close to Trip Point & RestartMoveHeaters &10/9/13 14:43 Loss of Power Circuit Breaker Tripped Due to Space Heaters Restart10/15/13 9:45 Channel 3 Low Range Change Error Restart10/23/13 17:08 Channel I Low Negative Reactivity Insertion Restart10/23/13 17:32 Channel 2 Low Signal Irregularity Shutdown11/6/13 14:46 Channel 3 Low Range Change Error Restart4. Safety-Related Corrective Maintenance:2/13/13: The "suspected electrical transient" causing inadvertent scrams on Channel I was fixedby removing an unnecessary equipment protection limit on the Channel I detector. Thedetector would not have to be raised for operation over I Watt and therefore the solenoidraising mechanism would not cause noise in the detector system.Channel 1 sensitrol was replaced with a model that matches those used on Channels 2and 3. Following this the magnets would not engage when interlock and scramconditions were inet and the scram lights would not work intermittently. It is assumedthat jarring the scram chassis during maintenance cause these additional problems.Rebuilding cable J-5 fixed the lights issue. Removing a short found in the unused period2 circuit resolved the magnet issue. In troubleshooting the above problems other changesmade were: Cable J-13 was rebuilt. The 46k magnet panel resistor and two 200 ohm 12watt power resistors were replaced. The 260 volt DC power supply's filter capacitorswere replaced. The R-23 potentiometer was adjusted to return the power supply'svoltage to 260 volts from 243 volts.

Idaho State University AGN-201 M Reactor2013 Annual ReportPage 5 of 83/28/13: Channel 2 was found turned on but without power. The fuse and vacuum tube V- 12(6BW4) were replaced to restore operation.5/2/13: Channel 2 was not responding appropriately. The 100 ohm 5 watt resistor was replacedas well as the circuit board and all wiring connected to the circuit board.5/2/13: In order to enhance the signal integrity of Channel 3, the internal signal cable wasreplaced, the zero adjustment was tightened and one of the 0B2 vacuum tubes wasreplaced.5/15/13: The aluminum sheath was removed from the glory hole, cleaned and replaced. Noradioactive contamination was found.6/4/13: Channel 2 power supply was rewired with new components back to original schematics.6/7/13: Dampening of period meter was adjusted.6/13/13: The V-4 (6CB6) and V-5 (6CB6) vacuum tubes on channel 2 were replaced.6/14/13: The gears between Fine Control Rod's syncrogenerator and number display were foundto not always catch. The pin on the display was bent out of the way.6/24/13: Replaced the vacuum tubes V-5 (6CB6) and V-5 (6CB6) on channel 2 to improve signalquality. Also the Fine Control Rod display lead screw was tightened.8/16/13: To improve performance during range changes the contacts on the channel 3 rangeswitch were cleaned and tightened.5. Modifications.A. Changes in Facility Design.NoneB. Changes to Procedures.Maintenance Procedure 1 utilized a Polaroid camera and a strobe light to measure rod droptimes. Polaroid film has become difficult to acquire and the camera itself has begun tobreak. MP-1 was revised to utilize Hall Effect sensors to measure the rod drop tim ing.C. Changes to Experiments.None Idaho State University AGN-201M Reactor2013 Annual ReportPage 6 of 8D. Reactor Safety Committee.As of the end of the reporting period, membership of the Reactor Safety Committee (RSC)consisted of the following individuals:Frank H. Just -Chair (retired from INL)Jay F. Kunze -Reactor AdministratorAdam L. Mallicoat -Reactor SupervisorRichard R. Brey -Dean of CollegePeter Farina -Radiation Safety OfficerRobert Boston, PE, CHP (DOE-ID)Kermit Bunde (DOE-ID)Richard E. McCracken (retired from INL)6. Sunmmary of Changes Subject to 10 CFR 50.59 Analyses.MP-1 was changed to utilize Hall Effect sensors to measure rod drop times.Unnecessary equipment protection limit removed from Channel 1.7. Radioactive Effluents.A. Liquid Waste -Total Activity Released: None.B. Gaseous Waste -Total Estimated Activity Released: 50.2 PLCi ofAr-41.The AGN-201 Reactor was operated for 521 watt-hours at power levels up toapproximately 4.9 watts. At this power level Ar-41 production is negligible andsubstantially below the effluent concentration limit given in 10 CFR 20 Appendix B, Table2. The total activity of Ar-41 released to the environment was conservatively estimated at50.2 ptCi. This activity corresponds to the total activity of all gaseous radioactive effluentfrom the facility. A monthly summary of calculated gaseous releases is given in Table IV.Table IV. Summary of Monthly Gaseous Radioactive Effluent Releases(1 January 2013 through 31 December 2013)Ar-41Month (VCi)January 1.9February 2.2March 6.7April 1.0May 1.5June 2.5June 11.8 Idaho State University AGN-201M Reactor2012 Annual ReportPage 7 of 8August 13.6September 0.4October 3.1November 5.5December 0.0Total50.2C. Solid Waste -Total Activity: None.8. The latest environmental radiation surveys, performed at the facility boundary while thereactor was operating at 100% of full licensed power (5.0 watt), measured a maximumcombined neutron and gamma dose equivalent rate of 0.72 mrem hr" or less at the outsidewalls of the building proximal to the reactor. The requirement that the total equivalent dosv'rate be less than 2.0 mrem hr" was satisfied.9. Radiation Exposures.The Radiation Safety Officer reviews personnel radiation exposures quarterly. Annualreports of ionizing radiation doses are provided by the Radiation Safety Officer to allmonitored personnel as required under the provisions of 10 CFR 19.Personnel with duties in the reactor laboratory on either a regular or occasional basis havebeen issued radiation dosimeters by the Idaho State University Technical Safety Office.The whole body exposures for the 2013 monitoring period of personnel are summarized inTable V:Table V. Personnel Radiation Monitored for 1/1/2013-12/31/2013Name Exposure by Type (mrem)Deep Lens ShallowAlsufyani, Sultan <1 <1 <1Baker, Benjamin 150 150 150Bealieu, Quinton <1 <1 <1Horkley, Matt 12 12 13Imel, Geoprge 3 3 2Krieger, Michael 35 34 33Kunze, Jay 1 1 2Langbehn, Adam 22 21 19Loveland, Ryan 42 41 40Lum, Edward 3 3 3Mallicoat, Adam 8 7 9Mulvaaney, John <1 <1 <1Navarvo, Jorge <1 <1 <1 Idaho State University AGN-201M Reactor2012 Annual ReportPage 8 of 8Nelson, Marcus 7 6 6Riley, Tony 5 6 5Stewart, Trevor 3 3 43Womack, Cody 9 9 9Tolman, Aaron 1 1 2Muchmore, Cody <1 <1 <1Byambadorj, Bilguun 2 2 1Crawford, Shiloh 1 1 1Finkbeiner, Jennifer 2 3 2The 10 CFR 20.1201 occupational dose limits to adults are: total 5 rein, lens of eye 15 remi,shallow 50 rem, and deep 50 rem. The doses received for all reactor laboratory personnelduring 2013 are well below the dose limits of 10 CFR 20.1201, and well below ISUALARA limits (I REM per year, 0.3 REM per quarter).Anytime a member of the public visits the reactor pin dosimeters are issued for the extentof the tour. A minimum of 1 dosimeter to every 5 people is issued for a representativegroup dose. During the 2013 calendar year there were 451 recorded visitors to the facility.A summary of the public dose exposure is presented in Table VI.Table VI. Summary Whole-Body Exposures to the Public(1 January 2012 through 31 December 2012)Estimated whole-bodyexposure range (mrem):Number of individualsin each range:No Observable Dose 4291.0 mrem* 10Greater than 1.0 but below 5.0 mrem 11Greater than 5.0 but below 10.0 mrem 1Total number of individuals reported451*Below 1.0 mrem is considered un-measureableNone of the 451 visitors to the facility during 2012 received a measurable dose that wVOLildexceed the annual 0.5 remn dose limit of 10 CFR 20.1301. Note there was only one readingthat was above 5 mrem, this is likely due to the shock of dropping the dosimeter.Therefore, the average and maximum doses received by personnel and the public are wellwithin NRC guidelines.Report prepared by' .,Ryan Loveland , Seilior ReactoF peratortJune 27, 2013Reviewed and approved by6 .i Adam Mallicoat, Reactor SupervisorJune 30, 2013ze, ReactorJu Oe30, 2013 Idaho State UniversityAGN-201M Reactor FacilityLicense R-110, Docket No. 50-284Annual Operating Report for 2013 Calendar Year1. Narrative SummaryA. Changes in Facility Design, Performance Characteristics, and Operating Procedures:There were no changes in facility design, performance characteristics, and operatingprocedures relating to reactor safety or operations during the reporting period.B. Results of Major Surveillance Tests and Inspections:(1) The period, count rate, and power level measuring channels were calibrated and setpoints were verified. Channels 1, 2, & 3 were tested 9/6/2013, 6/7/2013 & 9/5/2013respectively.(2) Power level (3/18/13) and period check (6/7/2013) experiments were performed withsatisfactory results.(3) The shield water tank was inspected (6/4/2013) and no leaks or excessive corrosionwere observed. The water level interlock tested satisfactorily (6/4/2013).(4) The seismic displacement & temperature interlocks were tested and found satisfactoryon 9/6/2013 and 9/4/2013 respectively.(5) (a) Control element capsules (cladding) were inspected (6/7/20 13) and found to be ingood condition with no evidence of deterioration since the previous inspection.(b) The control rod drive mechanisms were inspected (6/7/2013) and tested withsatisfactory results.(c) Ejection times were measured for all SCRAM-able rods and found to be less than 1second.(d) The reactivity worth of all safety and control rods were measured, as well as thetime required to drive each rod to its fully inserted position. Reactivity insertion rateswere determined to be less than 0.020%Ak/k s-1 ($0.027 s-1) for all rods.(e) On 9/13/13 the shutdown margin with both the most reactiv-e-S-CRSA-N-be r-o -dathe fine control rod fully inserted was determined to be 1.64%Ak/k ($2.22) and satisfiesthe requirement that it be greater than 1%Ak/k.(f) All surveillances were within the appropriate Technical Specification requirements.C. Minor ViolationAs a result of the annual inspection by the Nuclear Regulatory Commission, conducted inOctober 2013, a Level IV Violation was assessed. The Violation involved not havingsignatures affixed to all of the signature lines on several of the operator re-qualificationforms. A response to the Violation was submitted on December 18, 2013, indicating that it Idaho State University AGN-201M Reactor2013 Annual ReportPage 2 of 8was confirmed, from the Reactor Log, that those operations (control console exam) hadbeen conducted for the particular operators, but were not sufficiently recorded. It was alsoindicated that unnecessary duplication of signature lines were being eliminated on a revisedre-qualification form that would be put into effect within 30 days.2. Operating History and Energy Output.The reactor was operated at power levels up to 4.9 watts for a total of 521 watt-hours of thermalenergy during this reporting period. A summary of monthly operations for 2013 is given inTable I.Table I. Summary of Monthly Reactor Operations(1 January 2013 through 3 1 December 2013)MonthJanuaryFebruaryMarchAprilMayJuneJuneAugustSeptemberOctoberNovemberDecemberTotalEnergy (W-hr)19.622.969.510.715.226.4122.4141.33.931.657.20.3521.0The 0.521 kWh consumed 26.4 micrograms of U-235.During the calendar year, a number of students went through reactor operator training. Duringthe calendar year, three students took NRC licensing exams. Two were awarded Reactor-Operator (RO) licenses and one was awarded a Senior Reactor-Operator (SRO) license.3. A. Unscheduled Shutdowns and Corrective Actions Taken.None.B. Inadvertent Scrams and Action Taken.There were 56 inadvertent scrams during this reporting period. Table II summarizes theinadvertent scrams, known or suspected cause, and action taken.

Idaho State University AGN-201M Reactor2013 Annual ReportPage 3 of 8Table II. Summary of Inadvertent Scrams(1 January 2013 through 31 December 2013)Date Time Scram Type Cause Action1/10/13 12:27 Channel 1 Low Range Change Error RestartInvestigate1/15/13 11:19 Channel 2 High Signal Irregularity (-3.5 W max power reached) & Restart1/15/13 13:51 Channel 3 High Range Change Error Restart1/15/13 17:14 Channel 3 Low Range Change Error Restart1/16/13 10:10 Channel I Low Raising Detector Caused Additional Signal Noise RestartInvestigate1/17/13 11:45 Period Signal Irregularity in Channel 2 & Restart1/18/13 13:08 Channel 1 Low Range Change Error Restart1/18/13 15:11 Channel I Low Unknown RestartInvestigate1/21/13 11:41 Channel 2 High Scram Point Set Too Low & Restart1/21/13 12:38 Channel 1 High Range Change Error Restart1/21/13 14:01 Channel I Low Suspected Electrical Transient Restart1/21/13 14:30 Channel I Low Suspected Electrical Transient Restart1/21/13 15:03 Channel 1 Low Suspected Electrical Transient Restart1/24/13 10:07 Channel I Low Suspected Electrical Transient Restart1/24/13 12:06 Channel I High Range Change Error Restart1/25/13 11:11 Channel ILow Suspected Electrical Transient Restart3/4/13 16:52 Channel 2 Low Attempting To Operate At Too Low Of Power Restart3/4/13 17:01 Period Signal Irregularity Restart3/16/13 16:44 Period Experiment Removed To Quickly Restart3/16/13 16:52 Channel I High Range Change Error Restart3/16/13 16:57 Channel 2 Low Attempting To Operate at Too Low Of Power Restart4/1/13 15:40 Channel 3 Low Signal Irregularity During Range Change Restart4/17/13 10:05 Channel 3 High Range Change Error Restart6/14/13 10:47 Period Signal Irregularity Restart6/14/13 11:39 Period Signal Irregularity Restart6/14/13 15:30 Period Signal Irregularity Shutdown6/25/13 10:08 Channel 3 Low Signal Irregularity During Range Change Restart6/26/12 13:01 Channel 3 High Signal Irregularity During Range Change Restart6/26/13 19:59 Period Tubes Not Warmed Up Restart7/1/13 13:48 Channel 3 High Signal Irregularity During Range Change Restart7/2/13 11:48 Period Operator Error RestartInvestigate7/2/13 12:01 Channel 2 Low Tubes Not Warmed Up & Restart7/12/13 8:58 Channel 3 High Signal Irregularity During Range Change Restart8/8/13 13:46 Channel 3 High Range Change Error Restart8/15/13 15:02 Channel 3 Low Bumped The Console Restart Idaho State University AGN-201M Reactor2013 Annual ReportPage 4 of 88/15/13 18:58 Channel 3 Low Signal Irregularity During Range Change Restart8/16/13 11:05 Channel 3 Low Signal Irregularity During Range Change Restart8/16/13 11:25 Channel 3 Low Signal Irregularity During Range Change Restart8/16/13 11:58 Channel 3 Low Signal Irregularity During Range Change Restart8/16/13 12:08 Channel 3 Low Signal Irregularity During Range Change Restart8/16/13 12:24 Channel 3 Low Signal Irregularity During Range Change Restart8/16/13 13:04 Channel 1 Low Range Change Error Restart8/19/13 12:43 Channel 3 Low Bumped Console RestartWait &8/21/13 8:52 Channel 2 Low Tubes Not Warmed Up Restart9/4/13 14:58 Period Signal Irregularity RestartWait &9/13/13 12:35 Period Tubes Not Warmed Up Restart9/13/13 14:43 Channel 2 Low Signal Irregularity Shutdown9/25/13 15:00 Chanel 3 Low Signal Irregularity During Range Change RestartInspect &9/25/13 15:06 Period Signal Irregularity Restart10/2/13 10:26 Channel 3 Low Signal Irregularity During Range Change Restart10/2/13 10:31 Channel 3 Low Attempting To Operate at Too Low Of Power RestartHeat Room10/9/13 14:29 Temp Interlock Ambient Temperature Close to Trip Point & RestartMoveHeaters &10/9/13 14:43 Loss of Power Circuit Breaker Tripped Due to Space Heaters Restart10/15/13 9:45 Channel 3 Low Range Change Error Restart10/23/13 17:08 Channel I Low Negative Reactivity Insertion Restart10/23/13 17:32 Channel 2 Low Signal Irregularity Shutdown11/6/13 14:46 Channel 3 Low Range Change Error Restart4. Safety-Related Corrective Maintenance:2/13/13: The "suspected electrical transient" causing inadvertent scrams on Channel I was Fixedby removing an unnecessary equipment protection limit on the Channel I detector. Thedetector would not have to be raised for operation over 1 Watt and therefore the solenoidraising mechanism would not cause noise in the detector system.Channel 1 sensitrol was replaced with a model that matches those used on Channels 2and 3. Following this the magnets would not engage when interlock and scramconditions were met and the scram lights would not work intermittently. It is assumedthat jarring the scram chassis during maintenance cause these additional problems.Rebuilding cable J-5 fixed the lights issue. Removing a short found in the unused period2 circuit resolved the magnet issue. In troubleshooting the above problems other changesmade were: Cable J-13 was rebuilt. The 46k magnet panel resistor and two 200 ohm 12watt power resistors were replaced. The 260 volt DC power supply's filter capacitorswere replaced. The R-23 potentiometer was adjusted to return the power supply'svoltage to 260 volts from 243 volts.

Idaho State University AGN-201M Reactor2013 Annual ReportPage 5 of 83/28/13: Channel 2 was found turned on but without power. The fuse and vacuum tube V-12(6BW4) were replaced to restore operation.5/2/13: Channel 2 was not responding appropriately. The 100 ohm 5 watt resistor wvas replacedas well as the circuit board and all wiring connected to the circuit board.5/2/13: In order to enhance the signal integrity of Channel 3, the internal signal cable wasreplaced, the zero adjustment was tightened and one of the 0B2 vacuum tubes wasreplaced.5/15/13: The aluminum sheath was removed from the glory hole, cleaned and replaced. Noradioactive contamination was found.6/4/13: Channel 2 power supply was rewired with new components back to original schematics.6/7/13: Dampening of period meter was adjusted.6/13/13: The V-4 (6CB6) and V-5 (6CB6) vacuum tubes on channel 2 were replaced.6/14/13: The gears between Fine Control Rod's syncrogenerator and number display were foundto not always catch. The pin on the display was bent out of the way.6/24/13: Replaced the vacuum tubes V-5 (6CB6) and V-5 (6CB6) on channel 2 to improve signalquality. Also the Fine Control Rod display lead screw was tightened.8/16/13: To improve performance during range changes the contacts on the channel 3 rangeswitch were cleaned and tightened.5. Modifications.A. Changes in Facility Design.NoneB. Changes to Procedures.Maintenance Procedure 1 utilized a Polaroid camera and a strobe light to measure rod droptimes. Polaroid film has become difficult to acquire and the camera itself has begun tobreak. MP-1 was revised to utilize Hall Effect sensors to measure the rod drop timing.C. Changes to Experiments.None Idaho State University AGN-20 I M Reactor2013 Annual ReportPage 6 of 8D. Reactor Safety Committee.As of the end of the reporting period, membership of the Reactor Safety Committee (RSC)consisted of the following individuals:Frank H. Just -Chair (retired from TNL)Jay F. Kunze -Reactor AdministratorAdam L. Mallicoat -Reactor SupervisorRichard R. Brey -Dean of CollegePeter Farina -Radiation Safety OfficerRobert Boston, PE, CHP (DOE-ID)Kermit Bunde (DOE-ID)Richard E. McCracken (retired from INL)6. Summary of Changes Subject to 10 CFR 50.59 Analyses.MP-1 was changed to utilize Hall Effect sensors to measure rod drop times.Unnecessary equipment protection limit removed from Channel 1.7. Radioactive Effluents.A. Liquid Waste -Total Activity Released: None.B. Gaseous Waste -Total Estimated Activity Released: 50.2 j[tCi of Ar-41.The AGN-201 Reactor was operated for 521 watt-hours at power levels up toapproximately 4.9 watts. At this power level Ar-41 production is negligible andsubstantially below the effluent concentration limit given in 10 CFR 20 Appendix B, Table2. The total activity of Ar-41 released to the environment was conservatively estimated at50.2 j.tCi. This activity corresponds to the total activity of all gaseous radioactive effluentfrom the facility. A monthly summary of calculated gaseous releases is given in Table IV.Table IV. Summary of Monthly Gaseous Radioactive Effluent Releases(1 January 2013 through 31 December 2013)Ar-41Month (VCi)January 1.9February 2.2March 6.7April 1.0May 1.5June 2.5June 11.8 Idaho State University AGN-20 1 M Reactor2012 Annual ReportPage 7 of 8AugustSeptemberOctoberNovemberDecember13.60.43.15.50.0Total50.2C. Solid Waste -Total Activity: None.8. The latest environmental radiation surveys, performed at the facility boundary while thereactor was operating at 100% of full licensed power (5.0 watt), measured a maxim1um1combined neutron and gamma dose equivalent rate of 0.72 mrem hr-1 or less at the outsidewalls of the building proximal to the reactor. The requirement that the total equivalent doserate be less than 2.0 mrem hr- was satisfied.9. Radiation Exposures.The Radiation Safety Officer reviews personnel radiation exposures quarterly. Annualreports of ionizing radiation doses are provided by the Radiation Safety Officer to allmonitored personnel as required under the provisions of 10 CFR 19.Personnel with duties in the reactor laboratory on either a regular or occasional basis havebeen issued radiation dosimeters by the Idaho State University Technical Safety Office.The whole body exposures for the 2013 monitoring period of personnel are SUlmmarized ilTable V:Table V. Personnel Radiation Monitored for 1/1/2013-12/31/2013Name Exposure by Type (mrero)Deep Lens ShallowAlsufyani, Sultan <1 <1 <1Baker, Benjamin 150 150 150Bealieu, Quinton <1 <1 <1Horkley, Matt 12 12 13Imel, Geoprge 3 3 2Krieger, Michael 35 34 33Kunze, Jay 1 1 2Langbehn, Adam 22 21 19Loveland, Ryan 42 41 40Lum, Edward 3 3 3Mallicoat, Adam 8 7 9Mulvaaney, John <1 <1 <1Navarvo, Jorge <1 <1 <1 Idaho State University AGN-201M Reactor2012 Annual ReportPage 8 of 8Nelson, Marcus 7 6 6Riley, Tony 5 6 5Stewart, Trevor 3 3 43Womack, Cody 9 9 9Tolman, Aaron 1 1 2Muchmore, Cody <1 <1 <1Byambadorj, Bilguun 2 2 1Crawford, Shiloh 1 1 1Finkbeiner, Jennifer 2 3 2The 10 CFR 20.1201 occupational dose limits to adults are: total 5 rem, lens of eye 15 reim,shallow 50 rem, and deep 50 rem. The doses received for all reactor laboratory personnelduring 2013 are well below the dose limits of 10 CFR 20.1201, and well below ISUALARA limits (1 REM per year, 0.3 REM per quarter).Anytime a member of the public visits the reactor pin dosimeters are issued for the extentof the tour. A minimum of I dosimeter to every 5 people is issued for a representativegroup dose. During the 2013 calendar year there were 451 recorded visitors to the facility.A summary of the public dose exposure is presented in Table VI.Table VI. Summary Whole-Body Exposures to the Public(1 January 2012 through 31 December 2012)Estimated whole-bodyexposure range (mrem):Number of individualsin each range:No Observable Dose 4291.0 mrem* 10Greater than 1.0 but below 5.0 mrem 11Greater than 5.0 but below 10.0 mrem 1Total number of individuals reported451*Below 1.0 mrem is considered un-measureableNone of the 451 visitors to the facility during 2012 received a measurable dose that wouldexceed the annual 0.5 rein dose limit of 10 CFR 20.1301. Note there was only one readingthat was above 5 mrem, this is likely due to the shock of dropping the dosimeter.Therefore, the average and maximum doses received by personnel and the public are wellwithin NRC guidelines.Report prepared by:Ryan Loveland, S eiior Reactor Operatort'June 27, 2013Reviewed and approved by A ptlAdam Mallicoat, Reactor SupervisorJune 30, 2013JKze, Reactor AdttatorJu e 30, 2013