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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:Operating Report
MONTHYEARML23104A3002023-04-10010 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
ML21123A1682021-04-12012 April 2021
National Institute of Standards and Technology Reactor (Nbsr) - Operations Report No. 73 for the Period January 1, 2020 to December 31, 2020
ML19126A2722019-04-25025 April 2019
Us Dept. of Commerce, National Institute of Standards and Technology - Operations No. 71 for the Nbsr
ML15112B1782015-04-0808 April 2015
Letter from Robert Dimeo Docket 50-184 Operation Report No. 67 for the Nbsr
ML13098A0342013-03-28028 March 2013
Operations Report No. 65 for the National Institute of Standards and Technology Reactor January 1, 2012 to December 31, 2012
ML0909803012009-03-18018 March 2009
Transmittal of Operations Report No. 61 for Nbsr, for the Period of January 1, 2008 to December 31, 2008
ML0708602172007-03-20020 March 2007
Submittal of Operating Report No. 59 for 2006
ML0508202332005-03-17017 March 2005
NIST - Operations Report No. 57 for the Nbsr for January 1 - December 31, 2004
ML0309202112003-03-24024 March 2003
Transmittal of Operations Report No. 55 for the Nesr
ML0210202672002-03-29029 March 2002
United States Department of Commerce, Operating Report No. 54 for the Nbsr for Period Covering January 1, 2001 to December 31, 2001
2023-04-10
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UNITED STATES DEPARTMENT OF COMMERCE National Institute of Standards and Technology Gaithersburg, Maryland 20899-VOICE (301) 975-6210 FAX (301) 975-9427 March 20, 2007 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001
Subject:
Docket #50-184 Gentlemen:
Transmitted herewith is Operations Report No. 59 for the NBSR. The report covers the period January 1,2006 to December 31, 2006.
Sin(-rely, Patri'ck Gallagler Director, NIST Center for Neutron Research Enclosure cc: U.S. Nuclear Regulatory Commission Attn: Marcus Voth, Reactor Inspector One White Flint North 11555 Rockville Pike, M/S 012-G15 Rockville, MD 20852-2738 U.S. Nuclear Regulatory Commission Attn: Marvin Mendonca 012-G13 Washington, DC 20555-0001 NMsr
NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY REACTOR (NBSR)
Docket #50-184 Facility License No. TR-5 Operations Report
-- #59 --
January 1, 2006 - December 31, 2006 This report contains a summary of activities connected with the operations of the NBSR. It is submitted in fulfillment of section 7.8(3) of the NBSR Technical Specifications and covers the period from January 1, 2006 to December 31, 2006.
Section numbers in the report (such as 7.8(3)(a)) correspond to those used in the technical specifications.
M h 20 2007 Patrick Gallagher Director, NIST Center for Neutron Research
TABLE OF CONTENTS 7.8(3)(a) Summary of Plant Operations 7.8(3)(b) Unscheduled Shutdowns 7.8(3)(c) Tabulation of Major Items of Plant Maintenance 7.8(3)(d) Tabulation of Major Changes in the Facility and Procedures, and the Test and Experiments, Carried Out Without Prior Approval by the NRC Pursuant to 10 CFR 50.59 7.8(3)(e) Summary of Radioactive Material Released and Results of Environmental Surveys Performed 7.8(3)(f) Summary of Significant Exposures Received by Facility Personnel and Visitors 2006 Operations Report for NBSR (TR-5)
[Docket #50-184]
Page 1
7.8(3)(a) Summary of Plant Operations During the period January 1, 2006 through December 31, 2006 the reactor was critical for 6120 hours0.0708 days <br />1.7 hours <br />0.0101 weeks <br />0.00233 months <br /> with an energy output of 122,155 MWH. Major activities during this period included: reconfiguration of secondary cooling system piping; addition of a helium blanket system to the Thermal Shield Cooling System tank; validation of console control and indication wiring; a tabletop emergency exercise with local, state, and federal organizations; and the licensing of two senior reactor operators. There were two occurrences of unlatched fuel elements, both discovered immediately after refueling through routine latch checks, with the reactor still shutdown; the condition was corrected and element position subsequently verified. During routine and required maintenance, a slow drop time was recorded for a shim safety arm; a minor adjustment was made to the clutch assembly and the drop time returned to the expected value.
7.8(3)(b) Unscheduled Shutdowns
- 1. There were 3 scrams due to commercial power interruptions. A return to 20 MW was made within an hour of one scram. A return to 20 MW was made within 44 hours5.092593e-4 days <br />0.0122 hours <br />7.275132e-5 weeks <br />1.6742e-5 months <br /> of a second scram, the delay being due to xenon. A third scram was accompanied by loss-of-power induced equipment damage, with a return to 20 MW being made within 39 hours4.513889e-4 days <br />0.0108 hours <br />6.448413e-5 weeks <br />1.48395e-5 months <br />, the delay being due to damaged equipment and xenon.
- 2. A major scram was caused by failure of effluent monitor RM4-1. The monitor was de-energized in accordance with procedures and a return to 20 MW was made within an hour of the scram.
7.8(3)(c) Tabulation of Major Items of Plant Maintenance Note: Some of these items may be also listed as Engineering Change Notices (ECN).
- 1. Installed new RT-2 thimble assembly.
- 2. Installed helium blanket system for thermal shield storage tank.
- 3. Reconfigured secondary piping system.
- 4. Cut 44 spent fuel elements for eventual shipment.
2006 Operations Report for NBSR (TR-5)
[Docket #50-184]
Page 2
- 5. Instrument calibration surveillance tests were performed for the following:
Three Wide-range Nuclear Power Channels Reactor Vessel Flow and Level Recorders and Indicators Two Reactor Differential Temperature Channels Confinement Building Area Radiation Monitors Fission Product Monitors and Secondary Cooling N16 Monitors Three Confinement Building Effluent Monitors Emergency Ventilation System Controllers
- 6. Forty-five instrument service requests (ISR) were completed, including:
ISR # ACTION 1725 Cleaned RM4-1 meter selector switch and verified scram function.
1749 Replaced detector tube in RM3-2 Fission Products radiation monitor and calibrated monitor.
1753 Replaced console switch contact for DWV-5.
1761 Replaced NC-4 Log Amp card and calibrated channel.
1763 Replaced intermediate range rundown relay in number 2 logic drawer.
7.8(3)(d) Tabulation of Major Changes in the Facility and Procedures, and Tests and Experiments, Carried Out Without Prior Approval by the NRC pursuant to 10 CFR 50.59.
The following facility changes were completed this year. None required a license amendment or a change to the technical specifications, and there were no changes made pursuant to the applicable criteria of 10 CFR 50.59.
ECN 476 Helium Blanket for Thermal Shield Cooling System Storage Tank ECN 479 Install RT-2 Pneumatic Sample Assembly 7.8(3)(e) Summary of Radioactive Material Released and Results of Environmental Surveys Performed.
Gaseous releases consisted of 547 curies of tritium, 1220 curies of Argon-41, and 0.097 curies of other beta-gamma emitters. There were 3.80 curies of tritium and 1.6 millicuries of other beta-gamma emitters released into the sanitary sewer.
Environmental samples of the streams, vegetation, and/or soil, and air showed no significant changes.
2006 Operations Report for NBSR (TR-5)
[Docket #50-184]
Page 3
7.8(3)(f) Summary of Significant Exposures Received by Facility Personnel and Visitors.
- 1. None to visitors.
- 2. Dosimetry results for this reporting period indicated that no facility personnel received any significant exposures.
2006 Operations Report for NBSR (TR-5)
[Docket #50-184]
Page 4