ML20234F382

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Requests Addl Info Supporting Application for License for GESSAR-251,including Info Re Radioactive Sources in Gas Treatment Sys,Calibr of Containment Bldg Operating Floor Monitor & Protection from Radiation Exposure
ML20234F382
Person / Time
Site: 05000000, 05000531
Issue date: 09/25/1974
From: Kreger W
US ATOMIC ENERGY COMMISSION (AEC)
To: Crutchfield D
US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20234C970 List:
References
FOIA-87-40 NUDOCS 8707080204
Download: ML20234F382 (2)


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1 M-Dennis Crutchfield, Project Manager, Light Water Reactors Group 2-1, L l

Lil dj; ACCEPTANCE REVIEW DN 251 GESSAR NSSS h^

Plant name: GESSAR-251 I

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Licensing stage: Acdeptance Review i

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Docket number: Project Number: 538 l

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. Responsible branch: LWR 2-1 Jr Date request received by RA-L:, /3/74 9

Requested completion date: 9/25/74 I

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Description of response: Acceptance review questions kn

' Review status: Complete ul.

Radiation Protection Section, RAB, has reviewed the subject report.

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The attached questions describe the additional information that will j

be needed in order for us to continue our review.

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This review was performed by W. Kreger, kPS/RAB.

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T Willia'm E. Kreger, Leader, d

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Enclosure:

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331.0 RADIOLOGICAL ASSESSMENT BRANCH q

?j 331.1 Provide the 'Ju~stification for the use of 100,000 p Ci/sec for (12.1. 3. 5.1 )

the radioactive sources in the gas treatment system.

It is

]q not clear in section 11.1.1.1, exactly what operating experience was used to select this value.

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j 331.2 Is any calibration capability proposed for the range from 3

(12.1.4.2) 125 mr/hr to 1000 R/hr (containment building operating floor

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monitor)?

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331.3 This section mentions discussion in Sections 15.1 and 12.1 of

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~(12.2.3) the modes of relief valve discharge, the frequency of occurrence, d

and containment occupancy. There is no discussion of these in N

Section 12.1.

S 331.4 The applicant has provided answers to some of the pertinent

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9 (Supplementary questions from the review of 238 Reactor Island GESSAR.

%s information) However, several additional questions from that review should be addressed in Chapter 12 of 251 GESSAR.

These are 12.17, 12.31 y

and 12.48.

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331.5 In the radiation protection design of a nuclear steam supply d

(Chapter 12) system, there are several considerations that the applicant can implement for the equipment and comp 7;nents of that system that ij are important for assuring that occu will be as low as practicable (ALAP)pational radiation exposures a

These include design and i

d choice of equipment for low maintenance, design for quick removal (from high radiation areas), design for maintenance in low Q

radiation fields, design for quick access and entry, design for y

adequate working space, design for remote handling or tool use, y;

and others.

d These and any other design considerations relative

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to the ALAP requirement should be discussed in Chapter 12.

Illustrative examples of such design features should be provided.

h These should include the reactor and reactor systems during 4

nonnal operation and anticipated operational occurrences g

(including refueling, purging, maintenance, routine operational 1gj surveillanceandinserviceinspection).

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Have any design considerations been given to radiation exposure problems that will occur during decommissioning?

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