ML20012B531

Voided Matls Licensing Action for License 06-00183-06 for Yale Univ.Control:111326

ML20012B531
Person / Time
Issue date:	10/26/1989
From:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:	NRC
References
111326, NUDOCS 9003150197
Download: ML20012B531 (34)

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SUBJECT:

VOIDED APPLICATION

--Control Number:

111326

. Applicant:

Yale University Date Voided:

26 October 1989 Reason for' Void:

Irradiator not on Registry '(California) will re-submit when device is approved per Jack Davis.

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Attachment:

. Official Record Copy of

Voided Action

-FOR LFMB USE ONLY Final Review of VOID Completed:

Refund Authorized and processed No Refund Due

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-LICENSE FEE MANAGEMENT SRANCH, ARN PROGRAM CODE: 03510 AND STATUS CODE: 0 REGIONAL' LICENSING SECTIONS FEE CATEGORY: EX 3E

- EXP. DATE: 19920229

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890918 CONTROL NO.:

111326

.Oi LICENSE NO.:

06.00183-05

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a' e University OFFICE OF Tile PROVOST

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0, Dr. John Glenn

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United States Nuclear Regulatory Commission Region I Material Licensing Section m

475 Allendale Road King of Prussia, Pa. 19406 2

Dear Dr. Glenn:

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Subject:

License Amendment / License No. 06-00183-63 This correspondence represents an application ~for a license amendment of the Yale University Broad License number 06-00183-03. Specifically, we request that Item 6 be amended as follows:

Ob Cesium 137 Two scaled sources of 15000 Curies approximately 500 and 12000 Curies (+-20%)

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contained within-a 137 s Irradiator ~

Mark I C

manufactured by J. L. Shepherd and Associates The irradiator will be used primarily by the Department of Therapeutic

-Radiology for biological research.

Information regarding this unit, provided to Yale by J. L. Shepherd, is attached as exhibits I, II, III, and IV.

It should be noted that an additional shiciding option is included in the purchase.

It is expected that the external radiation level vill be less than 0.5 mrem /hr at one foot from all surfaces with this shielding option in place. The room in which the unit will be placed will not require posting as a " Radiation Area", even while the unit is in use. The irradiator will be shipped to Yale with all sources installed. The irradiator will be located in a laboratory which will be locked with access controlled.

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a' Jo . Pag'e 2 The radiation safety program for~the routine operation of this unit will consist of 1. A committee'will be established to oversee the use of the irradiator. This committee will ensure that all procedures are followed, and, in conjuction with the Radiation Safety Department, will have the authority to deny access to any potential user of the facility. 2.- All individuals must wear a film badge while using the facility. 3. All individuals must attend a Radiation Safety Training session prior to using the facility. 4. All individuals must be instructed in the proper use of the unit by a member of the oversight committee, with written verification of such training. 5. Keys to the room in which the unit will be housed, as well as the key to the source mechanism itself, will be held by a member of the oversight committee. 6. A use log will be maintained for the facility. 7. An area monitor will be placed within the room and will be set to alarm both visually and audibly. 8. The unit will be leak tested semi-annually.

9. <The door to the facility will be labeled " Caution, Radioactive Materials" and will be kept locked to prevent unauthorized access.

The Radiation Safety Department will perform an initial survey of the laboratory and adjoining areas once the unit is installed and prior to operation of the facility in order to determine compliance with appropriate regulations. Very truly yours, e-, ( Luv d Professor Edward A. Adelber Deputy Provost EAA:kp

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SHEHERC kASSOCIATES 1010 ARROYO AVE, SAN FERNANDO, CAuf0RNIA 91340-1822 818-898-2361 FAX 818-361-8095 l OPERATING MANUAL FOR MARK I IRRADIATORS WITH PNEUMATIC OPERATION e a

S4E3dERC b ASSOCIATES 1010 ARROYO A\\E, $AN FERNANDO, CALIFORNIA 91340-1822 818-898-2361 FAX 818-361-8095 OPERATING MANUAL FOR MARK I IRRADIATORS WITH PNEUMATIC OPERATION TABLE OF CONTENTS Pace I. INTRODUCTION...................................... 1 Leak Test,. Procedures.....-......................... 2 II. OPERATIONAL REQUIREMENTS.......................... 3 1. Air.......................................... 3 2. Electrical................................. 3 3. Weight....................................... 3 III.' OPERATING INSTRUCTIONS AND EMERGENCY PROCEDURES... 4 1. System Activation..................... 4 2. -Door Operation............................... 4 A. Opening the Door........................ 5 B.. Closing the Door........................- 6 3. Selecting Timer Function..................... 7 A.- Preset Time' Operation................... 7-B. Inspecting a Sample Durin an Irradiation...........g............... 7 C. . Manual Timer Operation.................. 8 4-Turntable Selection and Experiment Set-up.... 8 5. Sample Irradiation...........................- 8 6. Source Return......................... 9 7. . Safety Precaution............................ 9 IV. MAINTENANCE....................................... 10-1. Electrical'and Mechanical Maintenance / Repair. 10 2. Pneumatic System - Authorized Maintenance / Repair ~ Permitted on Oiler-Filter-Regulator System, Outside of Operating Tower, Only..... 11 (i)

V.. - e. 3. Turntable Adjustment, Maintena and Repsir....................nce 12 4. Cavity Clean Up.............................. 13 5. Turntable Drive System Diagram............... 14 V.. NOTICE-TO USER CONCERNING LEAK TEST, SAFETY CHECK AND NON-SAFETY CHECK PROCEDURES............. 15 VI. LEAK TEST PROCEDURES - TO BE PERFORMED AT SIX MONTH INTERVALS............................... 15 VII. SAFETY SYSTEMS CHECK OUT PROCEDURES - TO DE PERFORMED AT SIX MONTH-INTERVALS............... 15 1. Check-Out of Source Interlock System......... 15 2. Check-Out of Door Interlock System........... 16 i VIII. NON-SAFETY SYSTEMS CHECK OUT PROCEDURES FOR SOURCE ROD OPERATION - TO DE PERFORMED AT S I X MON TH, INTERVA LS............................... 17 { I I l (ii)

i .S4E HERC Ost ASSOCIATES 1010 ARaOyO AVE, SAN FERNANDO. CALIFORNIA 91340-1822 i 818-898-2361 FAX 818-361-8095 .t OPERATING MANUAL FOR MARK I i IRRADIATORS WITH PNEUMATIC OPERATION Model: S.N.: 'I I. INTRODUCTION The Mark I is a self-contained Cesium-137 irradiator and is delivered with the source permanently installed in the shielded section-of the unit. A full width door provides access to the . entire-irradiation

chamber, where samples are-rotated on turntables to receive an integrated equivalent to cylindrical source geometry, dose distribution and dose, for exposures over one minute.

Source operation is via pneumatic cable cylinder; source travels from the fully shielded "OFF" position to the irradiation chamber in less than two seconds and returns in less than one second. Sample dose is determined by turntable position and irradiation time. The door and source drive system are fully interlocked so that the source cannot be raised if the door is not fully closed and the door cannot be opened unless the source is fully shielded. During all installation procedures, the cavity door -is locked in the closed position and there is no; possibility of personnel exposure. Installation consists of location of the irradiator, complete operational and safety check of the unit, and personnel training. CAUTION:- INSTALLATION OF THIS IRRADIATOR REQUIRES THE SERVICES OF MANUFACTURER'S QUALIFIED PERSONNEL,. OPERATING UNDER A SPECIFIC STATE OF CALIFORNIA LICENSE TO INSTALL THIS UNIT. A LICENSE TO POSSESS THIS UNIT DOES NOT PERMIT THE USER TO INSTALL THE DEVICE OR MAKE REPAIRS UNLESS SPECIFICALLY AUTHORIZES IN THIS MANUAL, .NOVE OR DISMANTLE THIS

UNIT, UNLESS USER'S LICENSE SPECIFICALLY L(ON A

LINE ITEM BASIS) AUTHORIZES UCER TO PERFORM THESE FUNCTIONG. NOTE: For those user's who are specifically licensed to install, service and/or dismantle this irradiator, the manufacturer will provide detailed instructions for these functions, upon request.

I 4 -4 gg 4 L NOTICE TO USER:- Your license to possess this irradiator includes Safety Check Procedures. The USNRC suggests that these procedures be performed and documented at six month intervals (check your license, some States are more stringent). Safety check Procedures consist of Leak

Test, Safety check and Non-Safety Check, please reference these sections of this manual.

Leak Test Procedures are as follows: 1. Source must be in the fully shielded "OFF" position. 2. Using an absorbent material, cotton swab, etc., wipe the area where the operating tower meets the top of the shield. Note: .I f more stringent standards exist at your institution, and the wipe must be performed at the upper-end of the source rod where it exits the shield, you must obtain prior, written permission from the manufacturer to remove the operating tower. cover. 3. These wipes should be measured on an instrument capable of detecting 0.005 microcuries Cesium-137. Note: The 0.005 uCi level'is that generally prescribed by licensing authorities; individual institutions may. require more stringent standards. IF CONTAMINATION ABOVE THIS LEVEL IS. DETECTED, IMMEDIATELY-REMOVE THE ~ IRRADI ATOR FROM SERVICE AND CONTACT THE MANUFACTURER. -2

] r ii* e* s 0 s - q II. OPERATIONAL REQUIREMENTS 1. Air. 1 For pneumatic units which do not have the optional F noiseless air compres,sor, a clean air supply, rated at 80 psig, nust be available within five (5) feet of the irradiator. 2. Electrical. A clean, low noise electrical circuit, 115

volts, 60 Hz, rated at 15 amps, within five.

(5) feet of the-irradiator is required. -A circuit which has flourescent lights, freezers or other equipment which inject large inductive or capacitive pulses into the line will cause the timer of the Mark I to malfunction. If sporadic timer malfunctions are noted, this will be caused by " noisy" circuits, and a computer-type surge supressor will be required to ensure proper timer operation. 3. Weight. L Because of the weight of this irradiator, it is necessary for it to be placed in a location where the floor loading will bear its

weight, per the L

Installation Specification Sheet, provided prior to l-order. I i l 1 -t

b III.

OPERATING INSTRUCTIONS AND EMERGENCY PROCEDUREE NOTICEt IF AT ANY TIME THIS IRRADIATOR MALFUNCTIONS, IMMEDIATELY REMOVE THE UNIT FROM OPERATION, PADLCCK TME DOOR LATCM LND CALL J.L. BH1;PHERD & ASSOCIATES FOR INSTRUCTION. l Although not related to radiation safety, the major hazard to be encountered in the use of this irradiator is the formation of spatulated finger tips. This will occur if the door is closed before the operator's hand is completely removed from the door / cavity interface. All users should be instructed in this regard. 1. system Activation. plug the power cords (control

panel, turntable and i

compressor, if included) into the 115 Volt AC outlet, as specified in Section II. Turn control panel on. Ascertain the air system is connected and that air pressure is operating'at a minimum of 60 psig. 1 NOTE: The source operating system and irradiation chamber door are locked by spring loaded bolts. These bolts can only be actuated when power is applied and the necessary interlock switches activated; therefore, it is impossible to raise the source or open the door unless the power is on. It is impossible to raise the source without air pressure or low

pressure, as indicated by the

" Low Pressure" light on the control panel. 2. Door Operation. The Mark I irradiation chamber door is equipped with a completely independent mechanical pressure switch in addition to the electro-mechanical interlock system. The mechanical pressure switch (200 pounds operating pressure) is actuated only when the chamber door is completely and fully closed. In the event of catastrophic malfunction of the electro-mechanical interlock, this system will cause the source (s) to immediately drop to the fully shicided "OFF" position if the door opens as much as 1/16" from the fully closed

position, eliminating the possibility of radiation exposure.

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1 j 1 A. Opening the Door. To open the door, the following procedure must bo followed: (1) push the " DOOR OPEN" switch (mounted at the top i left side of the chamber /doot). A sharp sound will indicate that the bolt has been actuated. 1 (ii) While pushing the " DOOR OPEN" switch, operate the l door handle. The door will now open normally. DO NOT OPERATE THE DOOR HANDLE UNLESS THE " DOOR OPENH BWITCM IS BEING PUSMED. This will cause the dooJ bolt 1 to bind and fail to release. If the door handle is advertently operated when the J " DOOR OPEN" switch is not being pushed and the door bolt becomes jammed, proceed to REMEDY in following j section to open the door. 1 NOTE: The roller section of the fixed part of the i door latch is adjustable and may require adjustment i after prolonged uso. To adjust this roller, proceed as follows: Loosen the 7/16 hex bolt on the top of the fixed part of the latch. The roller assembly is then adjusted by rotating the whool (which has scrowdriver slots) at the rear underside of the fixed part of the latch clockwise to move the roller section out or counter-I clockwise to move it in. After adjustment, retighten the hex bolt. The roller section should be adjusted so that the tang section of the latch is firmly engaged against the roller at full (or almost full) oxtension of the tang g when the door is firmly closed by pushing either the door or handle. t.

4 B. Closing the Door. When closing the door do NOT grasp the handle. Push on the handle without grasping it and close the door firmly. If your unit is provided with a "U" shaped handle, use this handle only for closing door. NOTE DO NOT PRESS THE HDOOR OPEN" SWITCH (NOUNTED AT THE TOP LEFT SIDE OF THE CHAMBER DOOR) WHILE CLOSING i DOOR. IF DOOR WILL NOT CLOSE WITHOUT PRESSING THIS

SWITCH, THIS INTERLOCK IS MALFUNCTIONING, UNIT SHOULD IMMEDIATELY BE TAKEN OCT OF BERVICE AND MANUFACTURER CALLED.

The rationale for this is that the tang on the door handle must be fully engaged against the roller on the top.part of the latch or sufficient pressure (caused by the weight of the door) will not be exerted on the pressure switch-to permit the locking bolt on the primary interlock to engage the hole in the door tang. If the bolt does not engage the

tang, the source (s) cannot be raised.

There is also the possibility that the bolt will engage as the door is closed which will permit the source (s) to be raised but the door will rebound slightly which will cause the bolt to bind so that the door cannot be opened after the exposure. Evidence of this is a buzzing sound when the " DOOR OPEN" switch is pushed, rather than the usual sharp sound that the bolt has been retracted. REMEDY: If this occurs,. the remedy is to exert pressure on the door by pushing on it until the door i bolt retracts when the " DOOR OPEN" switch is pushed. Evidence of this is a sharp noise rather than a buzz when the switch is pushed. l m

j I i I 3. Selecting Timer Function. soloct either precot tino or manual operation on tho toggle switch below the timer on the control panel. A. Preset Time Operation. To preset time in the electronic timer, press the buttons above (to increase numbers) or below (to i decrease numbers) the set of digits to the right on the timor. ~ In the Proset modo after the completion of any exposure, it is necess,ary to press the " Reset" button before another exposure is initiated. If this is not dono, the source cannot be raised. Pressing the "Roset" button automatically rosets the timor to the previously selected time. If proset time is to be changed, the reset button must be prossed after each change or sample will be irradiated for previous irradiation time. The timer starts at 0000.00 and counts up to the preset time. After tho exposure is completed, the olapsed timo (total irradiation time) is indicated on the LED roadout (left illuminated set of digits). B. Inspecting a sample During an Irradiation. In either the preset or manual time modo, the LED tino readout starts at 0000.00 and shows the clapsed irradiation timo. If it is desirable to inspect an experiment during an irradiation, press the "Sourco Return" (of f) button on the control panol to lower the source to the fully shielded "OFF" position and open the door. To continue the experiment, close the door and raise the source, as described above. The timer i will continue timing as soon as the source has been raised and will return the source to the "OFF" position either at the end of the total preset time (preset modo) or by prossing "Sourca Return" button (manual modo). -

4 l C. Manual Timer Operation. To commence a manual irradiation, the " Source Raise" button must be pressed. The elapsed timer will continue to show and add to the total elapsed irradiation

time, no matter how many cycles are performed, until 9999.99 minutes.

To reset the total clapsed irradiation time to 0000.00, press the " Reset" button. 4. Turntable Selection and Experiment set-up. Select the turntable position and corresponding turntable for sample irradiation, using the isodose curves provided as part of this manual, for dose determination. NOTE: Turntable bottom must slip over the 1/4" center rod and tho' offset pin to insure proper rotation. Turntable. operation is controlled by a switch mounted on the turntable drive box, located on the left side of tho irradiator. Ascertain that sample is rotating properly before closing door. NOTE: Samples must be rotated to achieve the integrated dose an shown on the isodose curves; 1 minute (minimum) for the standard G r.p.m. turntable motor rotation or 1/2 minute (minimum) for the optional 12-r.p.m., dual speed turntable motor rotation. 5. Sample Irradiation. To expose the source, press the " SOURCE RAISE" button on the control panel. The source should raise smoothly and automatically latch in the "ON" position. The irradiation chamber door must be fully closed to do this. IN CASE OF ANY MANG-UP, AT ANY

TIME, OF THE SOURCE OPERATING

SYSTEM, THE SOURCE SHOULD BE RETURNED TO THE SHIELDED POSITION, THE IRRADIATOR IMMEDIATELY TAKEN OUT OF BERVICE AND THE MANUFACTURER CONTACTED.,

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i 6. Source Return. The source may be returned to the fully shielded "OFF" position by either of two methods. At the expiration of { the preset time period. Manually, by pressing the " Source Return" switch, which overrides the preset time mode. IN THE EVENT OF ELECTRICAL AND/OR AIR PRESSURE FAILURE, THE SOURCE AUTOMATICALLY RETURNS TO THE FULLY SHIELDED "OFF" POSITION. THIS ELIMINATES THE DAMAGE TO THE SAMPLE IN THE { IRRADIATION CHAMBER DUE TO EXCESSIVE DOSE. ELECTRICAL POWER IS REQUIRED TO OPEN THE CHAMBER DOOR; THERE IS NO i EMERGENCY PROCEDURE FOR OPENING THE DOOR MANUALLY. 1 l IN CASE OF ANY KALFUNCTION, AT ANY TIME, OF THE SOURCE OPERATION OR INTERLOCK

SYSTEM, THE IRRADIATOR HUST BE

{ IMMEDIATELY TAKEN OUT OF SERVICE AND MANUFACTURER CONTACTED. { 7. Safety Pr'ecaution. i The control panel is equipped with the following lights: POWER ON, SOURCE OFF, SOURCE ON. Because of the design of the safety interlocks built into the irradiator, it is i impossible to open the door when the source is totally or ) partially exposed or to expose the source when the door is open, except in the case of a major mechanical failure. The possibility of such a failure is very slight, because of the safety margins built into the mechanical components j of the system. As an added precautionary measure to insure i the safety of the personnel working with the irradiator, j the manufacturer recommends the followings-That the l laboratory monitor provided with

unit, or comparable i

instrument with an aural output or preset alarm level, be mounted near the door of the irradiator. 1 I 1 n

4 s 1 l k C IV. KAINTENANCE. HEVER, UNDER ANY CIRCUMSTANCES, IS ANY LUBRICANT TO BE PLACED ON i THE SOURCE ROD OR THE TUBE THROUGH WHICH IT PASSES - RADIATION POLYMERIZATION OF HYDROCARBONS OCCURS. This will cause malfunction of.the irradiator and require that it be sont to a hot cell facility for a complete overhaul. APPLICATION OF ANY LUBRICANT OR ACCIDENTAL SPILL OF OTHER MATTER (i.e. SODAS, JUICE, etc.) INTO THIS AREA IMMEDIATELY VOIDS ALL WARRANTIES. i CAUTION: A LICENSE TO POSSESS THIS UNIT DOES NOT PERMIT THE USER TO PERFORM MAINTENANCE OR REPAIRS ON SAFETY RELATED

SYSTEMS, UNLESS THE LICENSE SPECIFICALLY AUTHORIZES THE USER TO PERFORM THESE FUNCTIONS.

I 1. Electrical and Mechanical Maintenance / Repair. Electrical and/or mechanical maintenance on all safety /in.terlock circuits, including the control panel, is i strictly prohibited and must be performed by or under direct supervision of licensed manufacturer's personnel. Simple, specific maintenance or repairs on the control panel or operating tower only, may be performed if user obtains written permission and instructions from manufacturer. Under no circumstances is the control panel or tower cover to be removed without the express written permission of manufacturer. Specific authorizes maintenance / repair procedure follows: are as A. Control panel. Replacement of fuses which are ^ accessible without removing cover. D. Turntable motor and drive assembly - as covered in this section. 1 C. Cavity clean-up - as covered in this section. D. Door latch adjustment - as described in Section II, Operations, Part 2, Door Operation. E. Optional noiseless compressor manufacturer's instructions and schematic provided as part of this manual. 1

+ i 2. Pneumatio System - Authorized Maintenance / Repair Permitted j on Oiler-Filer-Regulator

System, outside of operating Tower, only.

1 A weekly, visual inspection of the oiler-filter-regulator system (the glass reservoirs or bowls on the sido of the operating tower) is recommended. The outside bowl (away from tower) is the water reservoir, which collects water r condensation present in air lines. The inner reservoir contains oil for the pneumatic source operating system. i It is very important that the water reservoir be emptied before it overflows into the oil reservoir. Permitting water into the pneumatic system can damage the system and y major factory maintenance could be required. It is also important that the oil level and oil dispersion be maintained. For oil dispersion, a bleed valve is located a.t the top front of the oil raservoir assembly. This should be opened approximately 1/2 turn from full closed position and set so that a fine mist appears in the t sight glass on top of the oiler. Oil consumption should be one (1) bowl por overy 6 - 12 month period, depending upon amount of use of irradiator. If no oil is consumed, open blood valve slightly until a fine mist appears. Lack of oil can damage the pneumatic source operating system and major factory maintenance could be required. If oil consumption is greater, slightly close blood valve. Fill oil reservoir with #10 or #20 weight non-detergent or vacuum pump oil. i NOTE: A nylon exhaust tube extends from the side of the l tower. This prevents exhaust oil from entering the sourco l oporating mechanism. Do not remove this tube or exhaust oil could enter the sourco operating system, causing it to froozo (radiation polymerization of hydrocarbons) and the irradiator will need to be returned to a hot cell to offect repairs. Please reference the manufacturer's technical specifications, found in this manual, for further details. ! l

1 i 3. Turntable Adjustment, Maintenance and Repair. Please reference the diagram of this

section, which follows:

A. i The turntable drive is set up using a.1475" pitch SS roller chain. If the primary drive chain,. which extends from the operating motor (which is located on the left side of the irradiator), to the turntable assembly insides becomes loose: Remove the cover of the turntable drive assembly and readjust the motor gear box assembly outward in the slots provided. This Will increase tension on the chain drive. The chain drive for the gears should never be taut, but should be tight enough so that slippage is not possible. D. Lubrication of the turntable drive assembly should be made at three month intervals. The chain drive spro.cket, which turns on the stainless steel

pins, must be lubricated with DRY GRAPHITE only.

Use of any organic lubrication will causo polymerization and seizure of the turntable assembly, t e t l . l l 1

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4. CAVITY CLEAM UP. t Please reference the diagram of this system, which follows: l A. Remove the bottom plate (cavity floor) by unscrewing the four allen set screws. During reassembly, be careful to replace any standoffs or shims in the exact positions. B. The turntable chain drive assembly is now fully exposed. If thorough clean up cannot be achieved with the turntable drive in place, it may be removed as follows: a. Remove the cover of the turntable drive box (on the left side of the device). Do not pull off any attached wires. b. Loosen the bolts that hold the drive motor in place. Push the drive motor towards the unit and remove the primary drive chain from the sprocket. c. Return to the inside of the chamber and lift all

chains, sprockets, and idler gears from the center rods on which they are mounted.

Note the location and position of each component. The only chain not removable is the main drive chain. It must be cleaned by moving it through the tubes in the side of the irradiator. i d. After cleaning, reassemble with all components in the exact positions that they were removed from. e. Liberally lubricate all pins with DRY GRAPHITE only. f. check and tighten set screw (s) in primary chain drive

sprocket, attached to the shaft which extends down from motor and gear box.

g. With the primary drive chain engaged on the L

sprocket, engage the chain on the gear motor.

I Slide the gear motor away from the irradiator until the chain is tight. Tighten the bolts l which hold the gear in the slots and replace the cover of the turntable motor. j y 9

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~. e V. NOTICE TO USER CONCERNING LEAK TEST, SAFETY CHECK AND NON-SAFETY CHECK PROCEDURES. YOUR LICENSE TO POSSESS THIS IRRADIATOR REQUIRES THAT YOU PERFORM AND DOCUMENT LEAK TEST, SAFETY SYSTEMS AND NON-SAFETY SYSTEMS CHECK PROCEDURES,,AT SIX MONTH INTERVALS, (CHECK YOUR LICENSE, SOME STATES AND INSTITUTIONS ARE MORE STRINGENT). WE HAVE PREPARED THE FOLLOWING THREE SECTIONS OF THIS MANUAL AS A CHECK LIST, TO BE SIGNED, DATED AND KEPT ON FILE. DO NOT REMOVE THESE SECTIONS FROM YOUR MANUAL, A LOOSE SET IS PROVIDED FOR COPYING. VI. LEAK TEST PROCEDURES TO BE PERFORMED AT SIX MONTH INTERVALS. 1. Source must be in the fully shielded "OFF" position. 2. Using an absorbent material, i.e. cotton swab, etc., wipe the area where the operating tower meets the top of the shield. NOTE': If more stringent Leak Test standards exist at 5 your institution, or are required by your

license, and the wipe must be performed at the upper end of the source rod where it exits the shield, you must obtain

prior, written petmission from the manufacturer to remove the operating tower cover.

3. These wipes should be measured on an instrument capable of detecting 0.005 microcuries Cesium-137. NOTE: The 0.005 microcurie level is that generally prescribed by licensing authorities; individual institutions may require more stringent standards. IF CONTAMINATION ABOVE THIS LEVEL IS

DETECTED, IMMEDIATELY REMOVE THE IRRADIATOR FROM SERVICE AND CALL MANUFACTURER.

VII. SAFETY SYSTEMS CHECK OUT PROCEDURES - TO BE PERFORMED AT SIX MONTH INTERVALS. 1. Check-Out of Source Interlock System. With power and air turned i on, open the door slightly so that the door tang is approximately 1/4" from door interlock box. i Press the " Source Raise" button. - --

s, I If interlock is malfunctioning, items to be noted are: A sharp

click, in the lower tower section, will be heard if the solenoid lock, which holds the source down, is actuated.

The source "OFF" light will be extinguished. This light is illuminated by proper functioning of a micro-switch actuated by the source rod in the fully shielded position and a second microswitch actuated by i proper position of the locking solenoid. r NOTE: A time delay is built into this system, so that the source is raised three seconds after the " Source Raise" button is pushed. If interlock is malfunctioning, turn control panel key s off and source will not be raised. IF ANY MALFUNCTION OF SOURCE INTERLOCK SYSTEM OCCURS, 6 AND SOURCE CAN BE RAISED WITH THE DOOR

OPEN, IMMEDIATELY TAKE UNIT OUT OF SERVICE AND CONTACT MANUFACTURER.

g j 2. Check-Out of Door Interlock System. With door fully

closed, press the

" Source Raise" button. l A loud click will be heard in the lower section of the operating tower, Immediately press the " Door Open" switch, to the left side of the door. There is a three second delay I before the source raises. Nothing should happen. l If a second click in emitted from the interlock box, this means that this door interlock system is not functioning properly. Do not attempt to open door. Note: Door pressure switch will return source to fully shielded position, if door is opened. IF ANY MALFUNCTION OF THIS DOOR INTERLOCK SYSTEM IS

NOTED, IMMEDIATELY REMOVE UNIT FROM SERVICE AND CONTACT MANUFACTURER.

r.

~. - . 4 e a l VIII. NON-8AFETY SYSTEMS CHECK-OUT PROCEDURES OF SOURCE ROD OPERATION - TO BE PERFORMED AT SIX MONTH INTERVALS. l. In the manual operating mode, with some time on the preset timer, press the " Source Raise" button. Source should raise smoothly and the corresponding light { on the control panel should be illuminated when source t rod reaches the top of the operating tower. 1 Press the " Source Return" button. Source-should immediately and smoothly return to the fully shielded

position, corresponding light on control panel be illuminated, and the click should be heard in the lower section of the tower (as described

] in previous section). 2. In preset operating

mode, set some

time, 1/10th I

minute, remembering to press " Reset" button after time change. i Press the " Source Raise" button. Source rod should raise smoothly, latch at the top of the tower and the corresponding light in the control panel should be illuminated. l At the end of the reset time, the source should move smoothly to the fully shielded

position, the 1

corresponding light on the control panel should be ) illuminated and the click should be heard in the lower t section of the. operating tower, as described in the previous section. IF THE UNIT DOES NOT OPERATE AS ABOVE, REMOVE UNIT FROM SERVICE AND CONTACT MANUFACTURER. e-u 4 4 ~ REPLACEMENT PARTS ORDER BY SIZE and KIT NUMBER r... ~ m.-- ) f hb4 V1ITVR ',,g ,x_p., PAkt NAME El't NAME klT NO. y-zu ni. r.... e iles tu rl.e.ne eri, rsi. Tex rttrie :: tu su4y 'a M ts 6.sai I l l.T). H Lt.LHMNr hfPl.ACEHlTf El'l I.K s@sVY ... - ~ .~ g D47WL DLWL kl.l'LAtt.HLi(l* 3 N klT uoWt (;Asurt s p,g7g uh M N re n t g gg,y C. ) Me" tat .h' trr, c : hr stisy A 'sTANiaAHll I.I.LNEldl i ) s ...s,.. t s - Vest.e l asw l as.s.aa SWl.nlet Act lik 'sD4 h 1 D . ylb.e.to 4.ssi6 wj. 1 " w / f l d l

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iS CA's i C528 EEEEw i= Miniature Series

==== _ m Combinat. ion Un.ts i Trans. Bowl Max. Press.150 PSI-Man. Temp.120'F Metal Bowl Mar. Press. 300 PSt-Max. Temp.120'F WARNINGt The polycarbonato plastic runterial Maintenance-Cleaning used to manufacture the plashe bowls, and the sight glass on metal bowls may be anacked bY NOTE: To clean,it is not necessary to remove unit certain chemicals Do not use this litter on systems trom the hoe. Refer to drawings on reverse side with air supphed by a compressor tubncated with as guide in reassernbly. synthetic oils or oils containin0 phosphate estern nr chtonnated hydrocarbons. These oils can cairy ove, Filter into the air knes and chemically attack and possibly To maintain rnaximum filtenng ethciency and tu rupture the bowl or sight glass Atto, do not expose the bowl or sight glass to snaterials such as carbon avoid excessive pressure drop the biter must be tetrachionde, trichlorethylene, acetone, pamt kept clean Turn drain valve clockwise to drain ott

hinner, cleaning fluios, or other harmf ul materials, any bowl accumulation belote et reaches level of for they too will cause the plube to craze and/or lower baffle A visible coating of dirt or condensate rupture. For use in environments where any of hW m m emme mm W these chemicals may be present, consult the factory indicates cleaning is necessary. Wash hiter eiernent for approval.

in alcohol and blow out body with compressed air. Caution: Filter Bowl must be cleaned with Installation Before installing, blow out pipe hne to remove scale household soap only. and other foreign matter. This unit has DRYSEAL Regulator pipe threads; use pipe compound ano tape it the au supply is kept clean the regulator should spanngly to male threads only. Install item in pipe hne so that att will flow in direchon of arrow provide long periods of uninterrupted service stamped on body, install as near as possible to Erratic tegulator operation or loss of regulation is equipment serviced filters and lubncators must be most always due to dirt in the disc area To clean. installed with bowl in a vertical position shut oil air hne pressure and disassemble the regulator Refer to drawing on reverse side as a Adjustment guide to disassernbly and subsequent reassembly. Regulator Heduced Pressure Adjustment Clean parts with alcohol and blow out body with To adjust reduce pressure settings, loosen lock compressed air. When reassembling make sure the seat is htmly in place and that the disc stem his into screw in center of knob and turn knob clockwise to increase pressure setting and counter clockwise to center hole 01 diaphragm assembly. Tighten spong lower setting. With relieving type segulators the cago shghtly more than hand tight (to 50 inch pounds torque). reduced pressure follows adjustment of the screw, with non relieving regulators adjustment for lower reduced pressure will not be obtained until the reduced pressure system is " bled-off" or until air flow starts. Lubricator Il air and oil are kept clean and the oillevel never Lubricator-Filling and Adjustment allowed below end of dip tube, the lubocator should To fall, shut off air supply, remove either of the two provide long periods of unattended service if the oil hil plugs and hil with oil to within %" of the top of drip rate diminishes or requires conhnual readjust-the bowl For most conditions. the use of a high ment, it is an indication that the dip tube is dirty or quahty S.A E. N10 (S U V.150 200 SEC 100"f ) is has become clogged With the air hne pressure shut recommended. Other oils, as specified by the maker ott, remove the bowl, and apply compressed air to the of the equipment to be lubricated, may be used. il low end of the dip tube to make sure that the oil not heavier than S.A E n30. Start equipment and delivery system is free and clear of impediment. Wash operate a few minutes to permit system to till any parts requinng cleaning with denatured alcohol Check tubrication of the equipment by holding the and re assemble unit CAUTION: Lubricator bowl thumbnail or a mirror near the exhaust opening-a and sight glass should be cleaned with household slight film of oil should be deposited each exhaust soap only, cycle. A heavy film indicates over-lubocation and the drops per minute should be reduced by turning adjusting screw clockwise. Clockwise rotation of adjusting screw decreases lubrication; counter-clockwise rotation increases lubncation Do not turn adjusting screw more than 1% turns counter-See other side for Replacement Parts List clockwise from the closed position. _ _ - _ - - - - _ - - - - - - - - - - - ~ ^

ExpIBIT JL a n cl Y A S O cia h s x. 1010 Arroyo, San Fernando, Cahlornia 91340 (818) 898 2361 Ittadiation & Cahbratson Equipinent Loud Stuelcong Nuclear N>phcations e CERTIFICATION SUBJ ECT: 12,00001 Cesium-137 Source Capsule per J. L. Shepherd and Associates drawing A-0533-1. This is to certify that a prototype of the source capsule per -drawing A-0533-1 has been subjected to and successfully passed free drop, percussion, heating and immersion tests as called in 10CFR 173.398. out Ow&W J . SilEPilERD / DATE: April 7,1986 MANurscluktns ENoruttnS CONSUL TANTS ~

EXH161T N l atul h ssocialLS l-1010 Assuyo, %n Fernando. Cahlornia 91340 (818) 898 2361 LYad Stueldsng litudouloots & Calibraison (quipinent e Nuclear Applocubons e DATA Sill:I T S PI'CI A L Pol (M CApSULl; TISTING Capsulo Typo: 6810 Drawing N u nibo r : A-0533-1 Capuuto was loadod with 660 gramn of inort CsC1 Inner and outor c a p s. u l o s woro holiarc woldod in accordance with drawings and t.ou t s pa r f ornied ao below. unto: April 7, 1986 4 9 C ril 173.398 Spocial Tout.u 1 1'r o o Drop 30' to 1/4" thick utool plato on concroto curfaco, ite n u i t. n : No viniblo damage to capnulo or woldo.

2. Porcunnion-1" d4amotor stool rod, wt.

3 lbu. droppod und on 4 timos through 40" dantanco on capsulo laying on 1/4" loud choot on concreto nuriaco. l<o n u l t u : Sidon and and of capsulo woro d o n t.o d. No fracturo of outor capsulon or wolda. 3. Iloating Capsulo heated in air to 1475*r in oloctric furnaco and huld at thin temporaturo 15 minutou then allowod to cool. It o u u l t u : Capnulo dincolorod no fracturo of capsulo ends, woldu or wal1s. ) 4. Immornion 24 hours in distilled water p il 7, m a >:i m u m i conductivity of 10 micro-mhon/cm. l(o p u l t u : No viuibio offoct on capuulo - no loaking o f. CuCl from insido capoulu. Look Test:

1. Method: Dubblo Tout.

Capnulo heated to 240* in glycol. i 2. It o s u l t a : No bubbles omorgod from capuulo. $ c/ J. f.. S h o p tro r d' / i ktANul AClukik; y nc:in(yg: l m,m, (.

,. t.. u- .T u n e, consuur l4 ss o' O Mo% }; 'H 3 50' b 1"T ce o nyn . o S O' " +- t I Y4 038 0 I fe " W 'l k, 10h $ { [ J t e m L L LJ _ v10 t

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hh SI 1//rt.< ate A tt AplIltTUllE' guyo o,7-enos gg g ' s 4, o ra m T o y s 4e ,g. Aho Available On Aperture Lord. 9B0ms o R7.o4,. J. L. SHEPHERD adc%xiata I Q 0o0 C E '3'c$ 0 }l1/go ^ S cu ett hse rs L t*C G A L E G Vo t. , s) e 9 h 81 f A-QS M~ l

. a.e Extiz9,17 )' REGISTRY OP.R/.DIOACTIVC SEALi:D SOURCES AND DEVICES p- . -G SAFETY EVALUATION OF DEVICE (Araended pages 1, 3 and 4 - March 8, 1905) hfb i i NO. - CA5980104$ MT_C: March 21, 1980 PAGE: 1 of 4 DEVICE TYPC: Irradiator s 110 DEL: MARK I Serles ?~ !!ANUPACTURER/DISTRI!5UTOR: 3.L. Shepherd and Associateu i 740 Salem Street Glendale, CA 91203 MANUPACTURCH/DIST,HIBU1VH: SEALED SOURCE MODEL DESIGNATION: Shepherd 6010 j s s ISO'IOPE: Cesium-137 MAXIt1UM ACTIVITY, 12,000 curies o i LEAK TEST PREQUENCY: Six months PRINCIPAL USE: Gamma Irradiator, Category I _ CUSTOM DEVICE: YES X NO 4 % e i L i

p p o. iT* REGISTRY OF RADIOACTIVE SEALED SOURCES M0 DEVICES SAFETY EVALUATION OF DEVICE l NO.: CA5980104U DATE: March 21,1980 _ AGE. 2 0F 4 p p, DEVICE TYPE: Irradiator ,, c

• ' :f DESCR!pTION:

^ The Mark. I Series Irradiator consists essentially of (1) an irradiation chamber with a door on the front side; (2) a cylindrical Jealeds.quice,attachedtothe .end of a source rod, which can be moved vertically; in its highest position, it is located at the back of the irradiation chanber; in its lowast position, the irradiation chamber is shielded from it; and (3) shielding around the source and irradiation chamber, including walls and door of the irradiation chamber. Following is data on the 15 variants of the Mark 1: Max. Lead Shield Overall Overall Max. Radiation Max Ci Cavity Thickness Dia. Dia. Height Radiation Level at -h Sub Model Cs-137 (inches) (inches) (inches) (inches) (inches) level 3 Ft. 1 3,000 4x6 5-3/8 12 29 47-3/4 15 mr/hr.75 mr/hr 2 6,000 4x6. 5-3/4 14 29 49-1/2 15 .75 3 6,000 4x6 6-7/8 16 29 51-3/4 2.5 .10 25-1 4,000 6x8 5-3/8 12 29 54-1/2 15 .75 0 -2 8,000 6x8 5-3/4 14 29 56-1/2 15 .75 l -3 8,000 6x8 6-7/8 16 29 59-1/4 2.5 .10 30-1 5,000 8 x 10 5-3/8 12 29 61 15 .75 -2 10,000 8 x 10 5-3/4 14 29 61-3/4 15 .75 -3 10,000 8 x 10 6-7/8 16 29 62-1/2 2.5 .10 68-1 6,000 12 x 12 5-3/8 12 32 66 15 .75 -2 12,000 12 x'12 5-3/4 14 32 68-1/8 15 .75 -3 12,000 12 x 12 6-7/8 16 32 70-1/4 2.5 .10 68-A-1 6,000 12 x 14 5-3/8 12 32 72 15 .75 -2 12,000 12 x 14 5-3/4 14 32 7a-1/8 15 ,75 -3 12,000 12 x 14 6-7/8 16 32 76-1/4 2.5 .10 'The door to the irradiation chamber is opened and closed manually. The source is raised from the "off" position to the " irradiate" position manually, where it is held by a latch, and falls by gravity from the " irradiate" position to the "off" position by any of the following means: (1) at the end of the preset time on timer, (2) power failure, and (3) by pushing the push-button-type "off" switch which overrides the preset timer. If the source does not move from the " irradiate" position to the "off" position within ten seconds, an audible alarm t. sounds. The source is locked in the "off" position by means of a spring loaded 11134' G 0FF604AL liECORD COPY Eli BEP 18-1989}}