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MONTHYEARML17068A1642017-03-0202 March 2017 NIST Center for Neutron Research - Statement of No Significant Hazard Resulting from License Amendment Request Dated 03/02/2017 Project stage: Request ML17068A1632017-03-0202 March 2017 NIST Center for Neutron Research Test Reactor - Request for Changes to Technical Specifications to Allow Low Power Testing Project stage: Request ML17097A2432017-03-29029 March 2017 Marked-up Version of the License Amendment Request of the Nbsr Technical Specifications Project stage: Request ML17153A1722017-05-25025 May 2017 NIST - Supplement for Request for Changes to Nbsr Technical Specifications to Allow Low Power Testing Project stage: Request ML17173A8842017-06-28028 June 2017 National Institute of Standards and Technology, Accesptance of Amendment Request to the Renewed Facility License No. TR-5 for the National Bureau of Standards Reactor Project stage: Other 2017-03-29
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Category:Letter
MONTHYEARIR 05000184/20232012024-01-25025 January 2024 National Institute of Standards and Technology - U.S. Nuclear Regulatory Commission 1st and 2nd Quarter Supplemental Inspection Report 05000184/2023201 ML24023A6182024-01-23023 January 2024 Us Dept. of Commerce, National Institute of Standards & Technology - Nuclear Program Assessments Response and Leadership Accountability ML23257A1972023-12-26026 December 2023 Examination Results Letter No. 50-184/OL-23-02, National Institute of Standards and Technology ML23257A1982023-12-26026 December 2023 Examination Report No. 50-184/OL-23-02, National Institute of Standards and Technology ML23306A1642023-11-0202 November 2023 Examination Report Letter No. 50-182/OL-24-01, University of Missouri - Columbia ML23306A1652023-11-0202 November 2023 Examination Result Letter No. 50-184/OL-24-01, University of Missouri - Columbia ML23207A0402023-07-26026 July 2023 Us Dept. of Commerce, National Institute of Standards & Technology, Nuclear Safety Culture Assessment and Response ML23195A1042023-07-12012 July 2023 NIST Center for Neutron Research (Ncnr), Withdrawal of License Amendment Request of December 11, 2020 ML23104A3002023-04-10010 April 2023 U.S. Dept. of Commerce, National Institute of Standards & Technology (Nist), Transmitted Herewith Is Operations Report No. 74 for the Nbsr for the Cy 2022 ML23089A1132023-03-30030 March 2023 Us Dept. of Commerce - National Institute of Standards & Technology - Non-Availability of Fuel and Funding to Convert Nbsr from HEU to LEU in 2021 ML23086B3832023-03-27027 March 2023 Us Dept. of Commerce, National Institute of Standards & Technology (NIST) - Change of Ncnr Director ML23040A3372023-03-0909 March 2023 NIST Restart Authorization Letter ML23059A0502023-03-0707 March 2023 Examination Confirmation Letter No. 50-184/OL-23-02, National Institute of Standards and Technology IR 05000184/20222022023-03-0707 March 2023 National Institute of Standards and Technology U.S. Nuclear Regulatory Commission 4th 2022 Quarter Supplemental Inspection Report 05000184/2022202 ML23055A3002023-03-0303 March 2023 NIST License Amendment 15 - Core Alternative Reload Methodology Scheme ML23020A9112023-02-0101 February 2023 National Institute of Standards and Technology Issuance of Amendment No. 14 to Renewed Facility Operating License No. TR 5 ML23033A1152023-02-0101 February 2023 Us Dept. of Commerce, National Institute of Standards & Technology, License Amendment Request IR 05000184/20222032023-01-27027 January 2023 National Institute of Standards and Technology - U.S. Nuclear Regulatory Commission Security Inspection Report 05000184/2022203 ML22350A0652022-12-13013 December 2022 Us Dept. of Commerce, National Institute of Standards & Technology (Nist), License Amendment Request ML22322A2182022-11-28028 November 2022 National Institute of Standards and Technology - Report on the Regulatory Audit Re Restart Request Following Exceedance of Cladding Temperature Safety Limit ML22322A2112022-11-17017 November 2022 NIST Center for Neutron Research, License Amendment Request. Response to NRC Questions Regarding the Primary and Effluent Monitoring Systems ML22293B8082022-10-19019 October 2022 National Institute of Standards & Technology (NIST) - License Amendment Request ML22235A1172022-08-23023 August 2022 Us Dept of Commerce, National Institute of Standards & Technology, Transmittal of Draft of a Proposed Presentation of 02/03/2021, Nbsr Event for NRC Review ML22227A1502022-08-15015 August 2022 Us Dept of Commerce, National Institute of Standards & Technology (Nist), Request NRC Permission to Restart the Reactor Upon Completion of Listed Corrective Actions and Recovery Efforts ML22223A1462022-08-11011 August 2022 Docket Number 50-184 and the Nbsr Requalification Plan ML22206A2132022-08-0101 August 2022 Letter to National Institute of Standards and Technology, Center for Neutron Research - Confirmatory Order (EA-21-148) ML22206A0102022-08-0101 August 2022 U.S. Nuclear Regulatory Commission Supplemental Inspection Plan for National Institute of Standards and Technology ML22181A1282022-07-21021 July 2022 National Institute of Standards and Technology - Issuance of Amendment No. 13 to Renewed Facility Operating License No. TR-5 ML22187A1272022-06-29029 June 2022 Nbsr Restart Request ML22160A2852022-06-0808 June 2022 Nbsr License Amendment Request Supplement ML22122A0882022-04-27027 April 2022 Letter for T. H. Newton, NIST Center for Neutron Research, from J. S. Bowen, Nrc/Nrr/Danu, NRC Office of Investigations Report No. 1-2022-005 - Release of OI Synopsis ML22094A1082022-04-0404 April 2022 Transmittal of Operations Report No. 74 for the Nbsr for January 1, 2021 to December 31, 2021 ML22084A4082022-03-30030 March 2022 NIST - Non-availability of Fuel and Funding to Convert Nbsr from HEU to LEU in 2021 IR 05000184/20222012022-03-16016 March 2022 National Institute of Standards and Technology - Us Nuclear Regulatory Commission Special Inspection Report No 05000184-2022201 ML22012A0902022-01-11011 January 2022 Nbsr License Amendment Request, Revised No Significant Hazard Consideration Determination ML21349A3772022-01-0404 January 2022 December 7, 2021, Summary of Mtg with Nist to Discuss Proposed Technical Specification Changes at the National Bureau of Standards Reactor EPID L-2021-LLN-0000 ML21361A2472021-12-23023 December 2021 Nbsr License Amendment Request ML21355A2752021-12-21021 December 2021 Us Dept. of Commerce, National Institute of Standards & Technology, Nbsr Response to Request for Supplemental Information on Request to Restart the Nbsr ML21355A2742021-12-20020 December 2021 Us Dept. of Commerce, National Institute of Standards & Technology, Supplement to October 1, 2021 Report and Restart Request ML21340A0092021-12-0303 December 2021 Nbsr Response to Request for Supplemental Information on Request to Restart the Nbsr ML21294A2772021-11-18018 November 2021 National Institute of Standards and Technology - Supplemental Information Needed for the Request to Restart the National Bureau of Standards Reactor ML21294A3732021-10-21021 October 2021 National Institute of Standards and Technology - Submittal of Supplement to October 1, 2021 Report and Restart Request ML21288A5552021-10-15015 October 2021 Us Dept. of Commerce, National Institute of Standards and Technology (NIST) - Supplement to October 1, 2021 Report and Restart Request ML21274A0272021-10-0101 October 2021 Nbsr Report on February 3, 2021 Fuel Failure Event, Root Causes, Corrective Actions, and Restart Readiness ML21265A4352021-09-24024 September 2021 National Institute of Standards and Technology - Change of Facility Project Manager ML21153A4162021-06-15015 June 2021 National Institute of Standards and Technology - Acceptance of the Application for a License Amendment Request for License Amendment and Addjustment of Tritium Effluent Values for D2 Cold Source Under Title 10 of the Code of Federal Regulat ML21153A3962021-06-0202 June 2021 Us Dept of Commerce, National Institute of Standards & Technology (NIST) - Docket Number 50-184 and the Nbsr Requalification Plan ML21133A2662021-05-13013 May 2021 Us Dept. of Commerce, National Institute of Standards & Technology, Follow-Up to Event Report ML21130A6042021-04-30030 April 2021 Us Dept of Commerce, National Institute of Standard & Technology - Non-Availability of Fuel and Funding to Convert Nbsr from HEU to LEU in 2021 IR 05000184/20212012021-04-14014 April 2021 National Institute of Standards and Technology U.S. Nuclear Regulatory Commission Interim Special Inspection Report No. 05000184/2021201 2024-01-25
[Table view] Category:License-Application for Facility Operating License (Amend/Renewal) DKT 50
MONTHYEARML23033A1192023-02-0101 February 2023 Us Dept. of Commerce, National Institute of Standards & Technology, License Amendment Request - Proposed Changes to the Safety Analysis Report for the Nbsr ML23033A1152023-02-0101 February 2023 Us Dept. of Commerce, National Institute of Standards & Technology, License Amendment Request ML21361A2482021-12-23023 December 2021 Nbsr License Amendment Request - Finding of No Significant Hazard ML21053A0382020-12-11011 December 2020 License Amendment Request for Tritium Dose Coefficients ML21053A0402020-12-0707 December 2020 Tritium LAR - Memo for Tom Newton ML19289A4942019-10-11011 October 2019 Us Dept. of Commerce, National Institute of Standards and Technology - License Amendment Request Response ML18303A2902018-10-26026 October 2018 Us Dept of Commerce, National Institute of Standards & Technology (NIST) - Request for License Amendment and Adjustment of Tritium Effluent Values for New D2 Cold Source Under 10 CFR 20.1302(2)( C) ML17328A5042017-11-20020 November 2017 Supplement for Request for Changes to Nbsr Technical Specifications to Allow Low Power Testing ML17097A2432017-03-29029 March 2017 Marked-up Version of the License Amendment Request of the Nbsr Technical Specifications ML17068A1632017-03-0202 March 2017 NIST Center for Neutron Research Test Reactor - Request for Changes to Technical Specifications to Allow Low Power Testing ML1033702442010-11-0101 November 2010 Requested Amendment to Indemnity Agreement D-9 and TR-5 Licensed Area 2023-02-01
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UNITED STATES DEPARTMENT DF COMMERCE National Institute of Standards and Technology Gaithersburg, Maryland 20899-March 2, 2017 Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001
Subject:
Request changes to NBSR Technical Specifications to allow low power testing.
Ref: Docket 50-184, TR-5 FacilityLicense Sirs/Madams:
The NIST Center for Neutron Research (NCNR) Test Reactor (NBSR) requests several changes to the TR-5 facility license technical specifications (TS).
The first group of these modifications are to the TS that specify the exemptions that are necessary to remove the apparent limitations in the present version of the TS. These limitations prohibit the use of a test procedure that is basic to the safe operation of NB SR. The approach-to-critical testing and TS 2.2(4) reactor operation is necessary to verify characteristics of an unknown core loading. The procedure is a variation of Start-up Test# 201 which was used during first start-up testing performed during the commissioning of the NBSR. The shims are replaced every 4 years because of burn-up of the cadmium poison. After installing the new shims, the core is conservatively defined as an unknown loading. Using an approach to critical during the fuel reload provides assurance that the characteristics of the core loading are within the specified parameters of safe reactor operation. The following Technical Specifications are to be modified:
TS 2.2, Limiting Safety System Settings will be clarified to show that conformance with 2.2 (4) conforms with specification (1) and renders the systems that provide the flow and temperature parameters (2) and (3) inoperable.
TS 3.1.3, Core Configuration will be changed to allow for low power operation without a full core loading for approach-to-critical testing and TS 2.2(4) reactor operation. This change also removes the objective of TS 3.1.3 to prevent broken shim arms from leaving the core.
Reassessment of design, quality assurance in the manufacture of the shim arms, and the extensive operating experience with them, finds it is extremely unlikely shims will break during operation permitted by TS 2.2(4).
TS 3.2.2 (3), (4), (5), (8), Reactor Safety System Channels will be annotated with exceptions to allow low power operations with reactor level and flow SCRAMs, and reactor outlet temperature rundowns bypassed.
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TS 3.3.1, Coolant System, Primary and Secondary will be changed to include an exception for approach-to-critical testing and TS 2.2(4) reactor operation with reactor vessel level as low as the top of the dump tube.
TS 3.3.2, Emergency Core Cooling will be changed to provide an exception and clarify that there is adequate D20 emergency core cooling available for approach-to-critical testing and TS 2.2(4) reactor operation even if the inner reserve tank is drained.
TS 3.7.1(2), (3), Monitoring Systems and Effluent Limits will be changed to provide an exception and clarify that even though the fission product monitor and the secondary coolant activity monitors are not operable during approach-to-critical testing and TS 2.2(4) reactor operation, the two of three gaseous effluent monitors, normal air, irradiated air, and stack air, are adequate to assure detection of abnormal effluent radioactivity.
TS 3.9.2.1, Fuel Handling, Within the Reactor Vessel will be changed to provide an exception and clarify that if operation of the reactor with natural circulation cooling flow is necessary during aprroach-to-critical testing using TS 2.2(4) reactor operation, fuel element latching may be exempted since the force developed from pump flow is not present.
In addition to the changes listed above, Technical Specification Figure 6.1 will be modified to correct a previous error to show NBSR Health Physics has an administrative reporting channel to the NCNR Director.
Also a license change.is requested in order to transfer the sources, necessary for reactor associated instrumentation calibration and testing, from the NIST SNM-362 license to the TR-5 license .
. This will assure-that the availability of sources needed to perform the surveillance required for the safe operation of the reactor is not dependent on a licensee external to the TR-5 license.
Respectfully, flJ,.:1 ~*
Robert M. Dimeo, Director NIST Center for Neutron Research 100 Bureau Drive, MS 6100 Bldg. 235, Room K107 Gaithersburg, MD 20899 I declare under penalty of perjury that the foregoing is true and correct.
- Executed on March 2, 2017 cc
- Xiaosong Yin, NRRIDPR/PRLB 2
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