ML20050A926

Forwards Core Energetics Info Requested in Question 760.5 of NRC 820122 Ltr.Encl Info Describes Contents of Magnetic Tape & Computer Printout Listing.Amend 67 to PSAR Documenting Responses to Questions Will Be Issued 820331

ML20050A926
Person / Time
Site:	Clinch River
Issue date:	03/29/1982
From:	Longenecker J ENERGY, DEPT. OF
To:	Check P Office of Nuclear Reactor Regulation
References
HQ:S:82:015, HQ:S:82:15, NUDOCS 8204020406
Download: ML20050A926 (3)

Text

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i. A Department of Energy N f

4' Washington, D.C. 20545 FtECE!En Docket No. 50-537 _ ,_.

HQ:S:82:015 e; APR 0119826 9 MAR 25 iggy "R y' 4

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s l Mr. Paul S. Check, Director CRBR Program Office

] Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission a Washington, DC 20555

Dear Mr. Check:

TRANSMITTAL OF INFORMATION This letter completes our response to your letter of January 22, 1982, which j requested specific information in the area of core energetics. The remaining computer format information requested in Question 760.5 was provided to C.

Allen of your staff on March 18, 1982. The enclosure describes the contents of the magnetic tape and computer printout listing. This information is suitable for transmittal to your LASL consultants to facilitate their review.

The PSAR update documenting responses to these questions will be included 7

i i in Amendment 67 scheduled for issue on March 31, 1982.

Sincerely, w -

J n R. Longeneck r, Manager Licensing & Environmental Coordination Office of Nuclear Energy Enclosure cc: Service List Standard Distribution Licensing Distribution 4

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s' s .s ENCLOSURE 1 .

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l Thre'e dimensional isotopic distr'ibution information requested in CS760.5 e ( was previously provided for the end-of-cycle 4 (E0C-4) condition (reference o'lIQiS:82:006, dated 2/19/82). This transmittal completes our response to R CS760.5 by providing two distinct sets of two dinensional information for 7 ., ' EOC-3; from these the desired three dimensional information can be developed as was agreed by telecon with the NRC contractor personnel at LASL. Similar 2D information is provided for ,EOC-4 to permit cross checking of the 3-D

derivation algorithm. Information for beginning of cycle 1 is also included, 4

th,ough not formally requested. 3 4 s

The two-dimensional isotopic.distributioniinformation from the 2DB computer i* code in hexagonal and .RZ geometries is provided via one magnetic tape. The

!, card images are written onithe magnetic , tape in the format specified by Fred j Parker of LASL (7 track, 800, bpf', BCD, 80 characters per card) and are blocked i into 45 card blocks. Each of,the six models is a separate file, and their i order on the tape is shown beltt. The computer output included with the tape J

lists the card images on the tape. The enclosed table summarizes the micro-

scopic constituents of the macroscopic cross sections used in the problem.

f FILES ON COMPUTER TAPE WM107

1. Hexagonal geometry B0Cl

2. Hexagonal geometry E0C3

3. Hexagonal geometry E0C4 s'

4. RZ geometry B0Cl

5. RZ 9eometry E0C3

6. RZ geometry E0C4 E

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! CRBRP

, NUCt. EAR NUM!!ER DENSITIES 24

(*10 /CC)*

i{ Te Cr Mt No Mn Na B-10 B-11 C -

l .1287-1 .3735-2 .2552-2 .2892-3 .3535-3 .9188-2

• Stainless Steel-Fuel 36" Region

.1290-1 .3745-2 .2560-2 .2900-3 .3545-3 .9443-2 Stt.inless Steel-tower Axial Blanket ,

.1412-1 4099-2 .2800-2 .3174-3 .3879-3 .8453-2 . Stainless Steel-Upper' Axf al Blanket

.9314-2 .2704-2 .1847-2 .2094-3 .2559-3 .6149-2 Stainless Steel-Inner and Radial Blanket 36" Region

.9343-2 .2712-2 .1853-2 .2100-3 .2570-3 .6250-2 Stainless Steel-Inner & Radial Blanket. Lower Extensten

.1056-1 .3064-2 .2095-2 .2374-3 .2902-3 .5558-2 Stainless Steel-Inner & Radial Blanket. Upper Ektensfon

.1742-1 .5058-2 .3455-2 .3916-3 .4787-3 .7907-2 .2698-1 .2470-2

.7713-2 Primary Control Assembly

.1761-1 .5113-2 .3493-2 .3958-3 .4839-3 .8381-2 .2378-1 .2177- .6754-2 Secondary Control Assenbly

.5201-2 .1510-2 .1032-2 .1169-3 .1429-3 .2041-1 Sodium Channel 4530-1 .1272-1 .7944-2 .1012-2 .1412-2 .4165-2 Radtal Shield *

.3487-1 .9577-2 .5983-2 .7619-3 .1063-2 .8549-2 . Axial Shield

.1611-1 .4678-2 .3196-2 .3622-3 4427-3 .8904-2 Fuel Fission Gas Plenh .

.1294-1 .3757-2 .2567-2 .2909-3 .3556-3 .6126-2 .

Blanket Fission Gas Plenum s

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.- . - . . - - .