ML17075A177

Non-Power Reactor Closeout of Generic Letter 2016-01, Monitoring of Neutron Absorbing Materials in Spent Fuel Pools for Rhode Island Atomic Energy Commission Docket No. 50-193 (CAC No. A11010)

ML17075A177
Person / Time
Site:	Rhode Island Atomic Energy Commission
Issue date:	04/07/2017
From:	Alexander Adams Division of Policy and Rulemaking
To:	Goodwin C Rhode Island Nuclear Science Center
Boyle P G, NRR/DPR/PRLB, 301-415-3936
References
CAC A11010, GL-16-001
Download: ML17075A177 (4)

Text

April 7, 2017

Dr. Cameron Goodwin, Director Rhode Island Nuclear Science Center 16 Reactor Road Narragansett, RI 02882-1165

SUBJECT:

RHODE ISLAND ATOMIC ENERGY COMMISSION - NON-POWER REACTOR CLOSEOUT OF GENERIC LETTER 2016-01, "MONITORING OF NEUTRON-ABSORBING MATERIALS IN SPENT FUEL POOLS," FOR RHODE ISLAND NUCLEAR SCIENCE CENTER DOCKET NO. 50-193 (CAC NO. A11010)

On April 7, 2016, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 2016-01, "Monitoring of Neutron-Absorbing Materials in Spent Fuel Pools" (Agencywide Documents Access and Management System (ADAMS) Accession No. ML16097A169), to address the degradation of neutron-absorbing materials (NAM) in wet storage systems for reactor fuel at power and non-power reactors.

For the non-power reactors, GL 2016-01 requested that licensees provide facility-specific information related to the use of NAM. This information was needed by the NRC staff to verify continued compliance through licensee implementation of effective methods for monitoring of reactor fuel in wet storage so as to detect and mitigate any degradation or deformation of NAM when credited in the facility licensing or design basis for criticality control of fuel in wet storage.

Unique to three NRC-licensed research reactors is the use cadmium (Cd) plates as NAM in the facility's wet fuel storage. On April 11, 2016, Rhode Island Atomic Energy Commission submitted a response to GL 2016-01 (ADAMS Accession No. ML16102A198), for Rhode Island Nuclear Science Center which was supplemented by a letter dated March 10, 2017 (ADAMS Accession No. ML17072A151). The NRC staff conducted a review of your responses to GL 2016-01 and noted that your facility uses Cd metal as NAM.

The NRC staff development of GL 2016-01, did not assess or otherwise consider the use, degradation, or deformation of Cd NAM. After reviewing your responses to GL 2016-01, the

NRC staff reviewed the use of Cd plates in research reactor applications. The NRC staff determined that the use of Cd NAM has not been known to exhibit the same or a similar susceptibility to the degradation or deformation described in GL 2016-01 that has been known to afflict NAM utilizing variations of boron-10 based NAM. The NRC staff's conclusion is supported in part by nearly 60 years of operational experience. The degradation or deformation of Cd plate NAM has not been observed at any of the research reactor facilities where used in wet fuel storage applications. Furthermore, based upon the information reviewed, the NRC staff would not anticipate the onset of degradation or deformation given the physical and chemical properties of Cd and the environment in which the Cd NAM is used.

C. Goodwin Based upon the information you submitted in response to GL 2016-01 and the results of the NRC staff review, the NRC staff has determined that the submission addresses the information requested in GL 2016-01. No further information or action is requested regarding this matter.

Sincerely,

/RA Duane Hardesty Acting for/

Alexander Adams, Jr., Chief Research and Test Reactors Licensing Branch

Division of Policy and Rulemaking Office of Nuclear Reactor Regulation

cc: See next page Rhode Island Atomic Energy Commission Docket No. 50-193

cc: Governor

222 State House Room 115

Providence, RI 02903

Howard Chun, Commissioner Cranston High School East 899 Park Avenue

Cranston, RI 02910

Dr. Clinton Chichester, Chairman Rhode Island Atomic Energy Commission College of Pharmacy Pharmacy Building

7 Greenhouse Road

Kingston, RI 02881 Dr. John Breen, Chairman

Nuclear and Radiation Safety Committee

Providence College Department of Chemistry and Biochemistry 1 Cunningham Square Providence, RI 02918

Test, Research and Training

Reactor Newsletter P.O. Box 118300 University of Florida Gainesville, FL 32611

Supervising Radiological Health Specialist Office of Occupational and

Radiological Health Rhode Island Department of Health 3 Capitol Hill, Room 206

Providence, RI 02908-5097

Dr. Nitin Padture, Commissioner School of Engineering, Brown University 184 Hope Street, Box D Barus & Holley Building, Room 608

Providence, RI 02912

Dr. Yana K. Reshetnyak, Commissioner Department of Physics University of Rhode Island East Hall, 2 Lippitt Road

Kingston, RI 02881 Dr. Nancy E. Breen, Commissioner Marine and Natural Science Building 226 Roger Williams University One Old Ferry Road Bristol, RI 02809

ML17075A177; *concurred via email OFFICE NRR/DPR/PRLB* NRR/DPR/PROB/LA*NRR/DPR/PGCB/BC* NRR/DPR/PRLB/BCNAME PBoyle NParker SStuchell AAdams (DHardesty for) DATE 4/7/17 4/7/17 4/7/17 4/7/17