ML24281A174

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Enclosure 1, Non-Proprietary Information, Supplemental Information to Proposed RAI Responses Related to the Criticality Safety Review of the Model No. Castor geo69 Transport and Storage Systems
ML24281A174
Person / Time
Site: 07109383, 07201052
Issue date: 09/25/2024
From:
Gesellschaft fur Nuklear-Service mbH
To:
Storage and Transportation Licensing Branch
Shared Package
ML24281A172 List:
References
CAC 001029, CAC 001028, EPID L-2021-NEW-0006, EPID L-2021-NEW-0002
Download: ML24281A174 (1)


Text

GNS demonstrated similarity between the benchmarks and the CASTOR geo69 package via TSUNAMI.

However, no information was provided on the nature of the distribution of the benchmark data. We would like to discuss the following:

1) any documentation available that shows the k values from the benchmarking analysis are normally distributed, Normal distribution is not checked due to a very conservative least-squares analysis.

Calculated bias values km and frequency distribution of km are included in Ch. 6.8, Explanation, why the distribution is not checked, is included in Ch. 6.8.

2) any evaluations of the area of applicability and trending analysis of the benchmark series selected, and No trending analysis because of ck = 0.98 Trending on ck (not included in Ch. 6.8, will be included in TSAR)
3) if extrapolation beyond the area of applicability was required and whether it was applied conservatively.

No extrapolation necessary.

Extrapolation is not required (not included in Ch. 6.8, will be included in TSAR)

Non-proprietary information Supplemental Information on Criticality Validation Analysis 25.09.2024 Non-Proprietary Version Proprietary Information withheld per 10CFR 2.390

Implementation in Ch. 6.8 Proprietary information Non-Proprietary Version Proprietary Information withheld per 10CFR 2.390

Implementation in Ch. 6.8 Proprietary information Non-Proprietary Version Proprietary Information withheld per 10CFR 2.390

NUREG-2215, Standard Review Plan y = 0.0014x - 0.0024

-0.02

-0.01 0.00 0.01 0.02 0.4 0.5 0.6 0.7 0.8 0.9 1

km (+/- 1k,m) ck Non-proprietary information Non-Proprietary Version Proprietary Information withheld per 10CFR 2.390

Trending on ck Proprietary information Non-Proprietary Version Proprietary Information withheld per 10CFR 2.390