ML19352G024
| ML19352G024 | |
| Person / Time | |
|---|---|
| Site: | 07007004 |
| Issue date: | 12/05/2019 |
| From: | Wiehle K American Centrifuge Operating |
| To: | Jacob Zimmerman Document Control Desk, Office of Nuclear Material Safety and Safeguards |
| References | |
| ACO 19-0030 | |
| Download: ML19352G024 (2) | |
Text
Official Use Only and Proprietary Information
- .:/C8ntrus Fuehng the Future of Nuclear Power December 5, 2019 ACO 19-0030 ATTN: Document Control Desk Mr. Jacob I. Zimmerman, Chief Fuel Facility Licensing Branch Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 American Centrifuge Plant Docket Number 70-7004; License Number SNM-2011 Submittal of Nuclear Criticality Safety Code Validation for the American Centrifuge Plant
Dear Mr. Zimmerman:
The purpose of this letter is to provide an advance copy of an engineering evaluation EE-3101-0013, NCS Code Validation of SCAI.E 6.2.3 cmd Cross Section Set v7-252 for keff Calculations, Revision O (Enclosure 1) to allow the U.S. Nuclear Regulatory Commission (NRC) additional time for review prior to the receipt of the high-assay low enriched uranium (HALEU) Demonstration Program proposed license amendment request (LAR). The proposed LAR will be submitted to the NRC for prior review and approval in the second quarter of 2020. This code validation establishes the area of interest for the American Centrifuge Operating, LLC (ACO) HALED process and evaluates benchmark experiments such that code system bias, bias uncertainty, and an upper subcritical limit can be established. This validation also provides the justification for using a minimum margin of subcriticality of 0.02 for the American Centrifuge Plant Upper Subcritical Limit determination.
After the NRC staff has had an opportunity to review the enclosed report, ACO is available to support a discussion with the NRC to address questions or clarify issues.
The enclosure contains Proprietary Information and in accordance with the guidance provided by the U.S. Department of Energy, also contains Official Use Only information. It is requested that the enclosure be withheld from public disclosure pursuant to 10 Code of Federal Regulations 2.390(dX1)
Official Use Only and Proprietary Information When separated from Enclosure 1, this cover letter is uncontrolled.
American Centrifuge Operating, LLC 3930 US. Route 23 South-P.O Box 628 Piketon, OH 45661
Mr. Jacob I. Zimmerman December 5, 2019 ACO 19-0030, Page 2 Official Use Only and Proprietary Information If you have any questions regarding this matter, please contact Jonathan Corrado at (740) 897-3285.
Sincerely,
~'t cf. rJ ;,/,h Kelly L. Wiehle Regulatory Manager
Enclosure:
As stated cc:
R. DeVault, DOE, NE-OR3, NE-ORSO Y. Paraz, NRC HQ L. Pitts, NRC Region II D. Tiktinski, NRC HQ R. Womack, NRC Regi'on II Official Use Only and Proprietary Information When separated from Enclosure 1, this cover letter is uncontrolled.