ML20234D868
| ML20234D868 | |
| Person / Time | |
|---|---|
| Issue date: | 12/18/1985 |
| From: | Axelson W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Sreniawski D, Wiedeman D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20234D394 | List: |
| References | |
| FOIA-87-809 NUDOCS 8801070257 | |
| Download: ML20234D868 (5) | |
Text
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.. g Eer.g UNITED STATES g)-
'/ 4' O. NUCLEAR REGULATORY COMMISSION
!1 j'i REGION 811 A
'., E f 799 ROOSEVELT ROAO GLEN ELLYN, ILLINOf 5 60137
%, . . . . . /
DEC i 81985 MEMORANDUM FOR: D. J. Sreniawski, Chief, Nuclear Materials Safety Section 2 D. G. Wiedeman, Chief, Nuclear Materials Safety Section 1 FROM: W. L. Axelson, Chief, Nuclear Materials Safety and Safeguards Branch
SUBJECT:
INSPECTIONGUIDANCE.FORPOOLGRRADIATORS-~3 Q:n ~ ~
Enclosed is inspection guidance which our inspectors should use while conducting inspections of pool irradiators (greater than 10,000 curies). It is important to note that this is only guidance and should not be interpreted as license requirements. However, if the inspector determines several deficiencies in the program as a result of this new guidance, then NRC manage-ment should be promptly informed and a corrective action plan should be developed with the licensee. I recommend we attach this guidance as an addendum to our industrial / academic inspection procedure.
YN, W.# L. Axelson, Chief Nuclear Materials Safety and and Safeguards Branch
Enclosure:
Inspection Guidance cc w/ enclosure:
L. 1. Cobb, IE I
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B801070257 871231 1
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- a. Water Chemistry Analyzer i
1 Does the licensee have a pool water quality control program? ~
]4 Does the licensee have a calibrated inline conductivity cell which alarms?
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l Does the licensee conduct any grab samples'for Cl , pH and Total. j Dissolved Solids (TDS)? I I
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Does the licensee have'an annual pool cleanup program to ensure insoluble CRUD is cleaned up? j Does the pool demineralized'have an automatic shutdown due to high radiation?- '
l WhatarethecurrentconcentrationsofCl!pH,andTDS?
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- b. Interlock Testing Program and Alarms What interlocks exist to prevent accidental entrance into the cell area during operations?
n, What testing programs exist for these interlocks?
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1 Are there both audio and visual alarms in the cell area indicating source rack movement?
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- c. Key Control for Cell Area .
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How many keys exist to permit operations of the source rack and i entrance into the cell area?
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1 Can spare keys be made from a local hardware store? ,l I
-l Is there a key system in the cell area'to permit restart of the rack-and does it have an adequate time delay override?
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- d. Fire Protection for Cell Area i
Does the cell have a fire / smoke alarm detection system which notifies-the local fire department? s Does the fire protection system meet local fire codes?
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Has the fire department examined the fire protection system?
Does the licensee's insurance company conduct fire inspections?
l Can the fire suppression system be operated remotely to flood a stuck source rack condition?
Will the system shut down automatically due to fire alarms?
- e. Loss of Power Procedures, Equipment and Facilities l
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l Will the source rack automatically insert'due to loss of power? l j
1 Does the operator have remote'DC powered indication that the source rack inserted due to loss of power?
II Does the operator panel area have emergency lighting capability?-
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l Has the licensee tested the system for loss of power? ;
l Has the licensee experienced loss of power at the facility _during-operations? -
_ f. Preventative Maintenance Program i
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Does the licensee periodically test or check safety systems to ensure' !
i they are not deteriorating? i 1
cable fraying of the source rack- -i 1
carrier system guide cables for source rack cell ventilation system ,
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- g. Radiation Detection System Are all portable and fixed radiation detectors calibrated periodically?
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Is there a testing program for those detectors which cause a source
. rack insert?'
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Is there redundant instrumentation available? !
Are the portable instruments source-checked prior to cell entrance? -
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- h. Confirmatory Measurements Collect pool grab samples for pH, C1', TDS and gamma analyses. .j i
- Submit these to Argonne National Lab for^ cold chemistry analyses.
Conduct the following interlock tests l
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'I (1) High radiation in demineralized (2) Loss of power (3) Loss of cell area ventilation (4) loss of hydraulic control to source rack cylinder, if air operated.
(5) low water level alarm (6) high conductivity alarm
- NOTE: Inspection is not completed until chemical analyses are reviewed.
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