ML15063A428

Oregon State University Triga Reactor (Ostr), Supplementary Information Supporting the License Amendment Application

ML15063A428
Person / Time
Site:	Oregon State University
Issue date:	03/02/2015
From:	Reese S Oregon State University
To:	Michael Balazik Document Control Desk, Japan Lessons-Learned Division
References
Download: ML15063A428 (1)

Text

Radiation Center Oregon State University, 100 Radiation Center, Corvallis, Oregon 97331-5903 T 541-737-2341 I F 541-737-0480 1http://ne.oregonstate.edu/facilities/radiation-center Oregon State UNIVERSITY March 2, 2015 Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555-0001 ATTN: Mr. Michael Balazik Research and Test Reactors Branch A Office of Nuclear Reactor Regulation

Reference:

Oregon State University TRIGA Reactor (OSTR)

Docket No. 50-243, License No. R-106 License amendment application submitted April 13, 2012 Answers to Request for Additional Information submitted April 14, 2014 Affidavit Letter from NWMI dated March 2, 2015

Subject:

Supplementary information supporting the license amendment application Mr. Balazik:

This letter serves to submit supplementary information supporting the license amendment application for the purpose of demonstrating 99Mo production capability in the OSTR. Northwest Medical Isotopes will be submitting, separate to this letter, a report on an off-gas experiment conducted in support of the license amendment application. Some of the information in the off-gas report supplied by Northwest Medical Isotopes is proprietary in nature and they will request that the information be withheld from public disclosure. An affidavit attesting to the proprietary nature of the information will be supplied by them.

In a letter dated April 14, 2014, responses to several RAI questions related to the license amendment were provided. The responses to questions 2 and 3 of that letter provided an updated calculation of the accident analysis. One of the isotopes analyzed was 133Xe. In the off-gas report, the measured release of 133Xe was found to be approximately 13% less than that estimated in the calculation. Because the consequences of the accident analysis are essentially proportional to the release fraction, the calculation submitted is likely appropriate and bounding for the targets described in the license amendment. This provides further confidence that the targets can be safely irradiated in the OSTR.

I hereby affirm, state, and declare under penalty of perjury that the foregoing is true and correct.

Executed on:

Sincerely Director o'o cc: Craig Bassett, NRC; Ron Adams, OSU; Rich Holdren, OSU; Andy Klein, OSU