ML16223A760

University of Utah, Submittal of Annual Operating Report for 7/1/2015 Through 6/30/2016

ML16223A760
Person / Time
Site:	University of Utah
Issue date:	07/29/2016
From:	Schow R C Univ of Utah
To:	Document Control Desk, Office of Nuclear Reactor Regulation
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Download: ML16223A760 (11)

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THEU UNIVERSITY OF UTAH Utah Nuclear Engineering Program 50 S. Central Campus Drive, Suite 2298 Salt Lake City, Utah 84112 801-581-4188 Fax 801-585-5477 July 29, 2016 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 To whom it)nay concern: Enclosed please find the Annual Operating Report for the University of Utah TRI GA Nuclear Reactor, License No. R-126, Docket number 50-407, for the period of 1 July 2015 through 30 June 2016. This report fulfills the requirements of the TRIGA Technical Specifications 6.7.1. If there are any further questions or concerns regarding this report, please contact me at (801) 581-4188. Respectfully, Ryan C. Schow Reactor Sugervisor, University of Utah Nuclear Engineering Program 50 South Central Drive, Room 1206 The University of Utah, Salt Lake City, UT 84112 Phone: 801.581.4188. E-mail: ryan.c.schow@utah.edu URL: http://.www.nuclear.utah.edu Cc: Xiaosong Yin, USNRC Craig Bassett, USNRC

'ITTJTR Annual Report 1 July 2015 -30 Jun 2016 The University of Utah TRI GA Reactor (UUTR) Operating Report for the period 2015 through 30 June 2016 Ryan C. Schow, UUTR Supervisor Utah Nuclear Engineering Program (UNEP) 1 UUTR Annual Report 1July2015 -30 Jun 2016 A. NARRATIVE 1. Operating Experience The University of Utah TRIGA Reactor (UUTR), License No. R-126, Docket No. 50-407, was critical for 13.234 hours0.00271 days <br />0.065 hours <br />3.869048e-4 weeks <br />8.9037e-5 months <br /> and generated 179.386 kilowatt-hours of thermal energy during this reporting year. The .reactor was used for educational demonstrations and training, laboratory experiments, reactor systems tests, reactor power measurements and sample irradiations. 2. Changes in Facility Design No :giajor changes to the facility occurred during this reporting period. 3. Surveillance Tests Documentation of all surveillance activities is retained and stored by the facility. a. Control Rod Worth Table 1. Summary of control rod worth, SDM, and ER Core #24-B #24-B Configuration 2/10/16 6/16/16 Date Worth($) Worth($) Safety Rod 2.277 2.227 Shim Rod 1.443 1.463 Regulating Rod 0.270 0.283 Excess Reactivity 0.6102 0.667 Shutdown Margin 1.103 1.079 b. Control Rod Inspection The"biennial control rod inspection was performed during May of 2016 when control rods were sequentially removed from the reactor core for visual inspection. Rod drop times were measured on 2/10/16 and 6/16/16. All rod drop times were less than 1.02 seconds. c. Reactor Power Level Instrumentation A calorimetric power calibration was performed on 2/18/16 with the results shown in Table 2. The calibration was completed at a lower power level of 50 kW due to replacement of ion-chambers and maintenance. Log power stopped responding during the test and the log power's inoperability has delayed the completion of a follow-up Utah Nuclea;r Engineering Program (UNEP) 2 UUTR Annual Report 1 July 2015 -30 Jun 2016 calorimetric power calibration. When repairs are complete to the log power indication, another calorimetric power calibration will be performed. Table 2. Summary of calorimetric power calibration ..,, Date Measured % Power Cafculated Power Level 2/18/16 41.1 54.2 The adjustment of power monitoring channels procedure was performed on 3/3/16 following the calorimetric results received on 2/18/16. d. Fuel Inspection The biennial fuel inspection was performed during April and May of 2016 when each fuel element was visually inspected while keeping it submerged in reactor tank water in assuring the required shielding. No deterioration or excessive corrosion of in-core fuel elements was observed. Pool water is sampled and analyzed periodically for evidence of fission product activity indicative of defective or deteriorating fuel. Anaiyses of pool water following full-power reactor operations lasting several hours have not shown any indication of the presence of fission products. e. Fuel Temperature Calibration Fuel*temperature circuits were calibrated on 9/1/15 and 2/4/16. The circuits were calibrated to less than or equal to 2°C error over the range from 20 °C to 400 °C. f. Safety Committee (RSC) Audits Three RSC audits were completed during this reporting period. The data are shown in Table 3. No significant deviations from normal operating practices were identified by these audits. ...,. T, bl 3 A d' a e . u 1tsummary Audit Period Auditor Operation and 1Jan.2015to30Jun.2015 Jam es M. Byrne Maintenance Rad,iation Safety and 1 Jul. 2014 to 30 Jul. 2015 Fred Monette ALARA Karen Langley Mary Handy Operation and 1 Jul. 2015 to 31 Dec. 2015 Jam es M. Byrne Maintenance Utah Nuclear Engineering Program (UNEP) 3 UUTR Annual 1 July 2015 -30 Jun 2016 g. Environmental Surveys Nine environmental monitors are located in the areas surrounding the UUT.R. A maximum exposure of 41 mrem in a quarter to an environmental dosimeter located in the Building 80 was measured. Table 4 shows the average dose recorded in last five years. Table 4. Summary of environmental monitorin,q around the UUTR .. Year Average quarterly readings for the 8 environmental monitors f mrem) 2015 32.06 2014 33.81 ,. 2013 33.88 2012 35.56 2011 35.13 2010 36.00 .. B. ENERGY OUTPUT The UUTR reactor was critical for 13.234 hours0.00271 days <br />0.065 hours <br />3.869048e-4 weeks <br />8.9037e-5 months <br /> and produced 0.007 megawatt*days (179.386 kilowatt* hours) of energy during this reporting pertod. Since initial criticality, the reactor has been operated for a total of 3882.695 hours0.00804 days <br />0.193 hours <br />0.00115 weeks <br />2.644475e-4 months <br /> with an accumulated total energy output of 9.342 megawatt*days (224206.581 kilowatt*hours). C. EMERGENCY SHUTDOWNS AND INADVERTENT SCRAMS: ' There was one inadvertent SCRAM that occurred during this period on 2/18/16 because of erratic indication when operating the linear power selector switch. Summary of the inadvertent scrams and unplanned shutdowns is given in Table 5. Table 5. Summary of Inadvertent SCRAMS and Unplanned Shutdowns Date Run Type Cause Action Number 02/18/16 1894 Linear Linear power indication Reactor power Power oscillated when selector switch operating the reactor examined power selector switch D. MAJOR MAINTENANCE

• The source range fission counter replacement was completed in February 2016. .

• The reactor control console wiring and connections were cleaned and Utah Nuclear Engineering Program (UNEP) 4 UUTR Annual Report 1July2015 -30 Jun 2016 organized which was completed in September 2015.

• Replacement of the% and log power ion-chambers was completed in February 2016. E. CHANGES, TESTS AND EXPERIMENTS PURSUANT TO 10 CFR 50.59 None. F. REACTOR SAFETY COMMITTEE As of the end of the reporting period, the current members of the RSC as designated by the Licensee are as follows: James M. Byrne, Chair Tatjana Jevremovic, Director UNEP and UUTR Karen Langley, RSO of University of Utah Ryan Schow, Reactor Supervisor Donald Wall Rian Smith Benjamin Huffman The-.UNEP staff continues to review and update facility documentation to assure compliance with all applicable regulations. G. RADIOACTIVE EFFLUENTS 1. Liquid Waste Total activity released: none 2. Gaseous Waste Total estimated activity released: 2.233 The UUTR was operated for 13.234 hours0.00271 days <br />0.065 hours <br />3.869048e-4 weeks <br />8.9037e-5 months <br /> at power levels up to approximately 90 kW. At this power level Ar-41 production is substantially below MPC values for unrestricted areas. The minimum detectable concentration of Ar-41 from the CAM system for the stack monitor has been found to be less than two-third of 10 CFR 20 appendix B limits for release to unrestricted areas. The average annual calculated concentration of Ar-41 generated during operation is estimated to be 9.933x10-12 that is approximately 0.0003 % of the DAC. The total amount of Ar-41 released was estimated to be 2.233 No phosphorus-32 was released from the UUTR and associated facilities during this period. The total amount of all gaseous radioactivity released was estimated to be 2.233 A monthly summary of gaseous releases is given in Table 6. Total activity of gaseous effluent was therefore 2.233 Utah Nuclear Eng;!neering Program (UNEP) 5 UUTR Annual Report 1July2015 -30 Jun 2016 Table 6. Summary of Monthly Gaseous Radioactive Effluent Month Power Ar-41 Ar-41 (µCi/ml) Estimated Release % ofDAC (kWh) P-32 and all others Jul 15 .,, 0 0 0 0 0.000% Aug15 0 0 0 0 0.000% Seo 15 0 0 0 0 0.000% Oct 15 0 0 0 0 0.000% Nov 15 ' 0 0 0 0 0.000% Dec 15 0 0 0 0 0.000% Jan 16 0 0 0 0 0.000% Feb 16 170.251 2.120 9.42742E-12 0 0.0003% Mar 16 7.649 0.095 4.23553E-13 0 0.000% Apr 16 1.206 0.015 6.67806E-14 0 0.000% Mav16 0 0 0 0 0.000% Jun 16 0.28 0.003 1.55046E-14 0 0.000% Total 179.386 2.233 9.93325E-12 0 0.0003% 3. Solid Waste -Total activity: None No solid waste material was sent to the Radiological Health Department for disposal during the period of 1 July 2015 through 30 June 2016. H. PERSONNEL RADIATION EXPOSURES UNEP Personnel The University of Utah Radiological Health Department has issued to all personnel with duties in the reactor laboratory on either a regular or occasional basis an OSL dosimeter. The duty category and monitoring period of personnel are summarized in Table 7. A summary of the whole body exposures to the UNEP personnel is presented in Table 8. Measured Doses 7 /1/15-6/30/16 Doses: 2 mrem average; 8 mrem highest measured Dose Equivalent Limit Maximum Permissible Dose Equivalent= 5000 mrem/year (1250/quarter). Minimum Detectable Dose per Monthly Badge= 1 mrem. Visitors Eight hundred and twenty-five (825) individuals visited the reactor facility during the period 1July2015 to 30 June 2016. None of the visitors received a measurable dose. Utah Nuclear Engineering Program (UNEP) 6 UUTR Annual Report 1July2015 -30 Jun 2016 Table 7. Summary of Monitored Personnel ..,,. Monitoring Name Period Duty Category Albright, Lucas 04/01/16-Regular 6/30/16 "" 10/01/15-Allred, Michael 6/30/16 Regular Alroumi, Fawaz 07 /01/15-Regular 6/30/16 Anderson, Jacqui 07 /01/15-Regular 6/30/16 Bennett, Chelsea 04/01/16-Regular. 6/30/16 "" 07 /01/15-Burak, Adam 6/30/16 Regular Burnham, Steven 07 /01/15-Regular 6/30/16 Chidester, Joshua 07 /01/15-Regular 6/30/16 Cutic,Avdo 07 /01/15-Regular 6/30/16 Doane, Samuel 07 /01/15-Regular 6/30/16 Faure, Quentin 04/01/16-Regular 6/30/16 Fitzhugh, Richard 08/01/15-Regular 6/30/16 Flygare, Joshua 07 /01/15-Regular 6/30/16 Foley, Amanda 07 /01/15-Regular 6/30/16 Gee, Wimonphan 07 /01/15-Regular 6/30/16 Grifffn, Hayden 08/01/15-Regular 6/30/16 Han,Dahee 07 /01/15-Regular 6/30/16 Zachary 07 /01/15-Regular 6/30/16 Utah Nuclear Engineering Program (UNEP) 7 UUTR Annual 1July2015 -30 Jun 2016 Hatfield, Andrew 10/01/15-Regular 6/30/16 ,.. 3/01/16-Hawkins, Casey 6/30/16 Regular Hinrichs, Benny 07 /01/15-Regular 6/30/16 " 10/01/15-Horvath, David 6/30/16 Regular Jevremovic, 07 /01/15-Regular Tatjana 6/30/16 07 /01/15-Kanno, Nicholas 6/30/16 Regular Kavouras, John 07 /01/15-Regular 6/30/16 .... 07 /01/15-Kim, Donghoon 6/30/16 Regular King, Travis 07 /01/15-Regular 6/30/16 ,. 08/01/15-Lai, Trent 6/30/16 Regular Lee, Sangkyu 07 /01/15-Regular 6/30/16 .,. 07 /01/15-Levinthal, Joseph 6/30/16 Regular Lintereur, Azaree 07 /01/15-Regular 6/30/16 "' 07 /01/15-Lund, Matthew 6/30/16 Regular Lusk, Robert 2/1/16-Regular 6/30/16 ""' 07 /01/15-McDonald, Luther 6/30/16 Regular Minko, Aliaksei 07 /01/15-Regular 6/30/16 = 07 /01/15-Morgan, David 6/30/16 Regular Murray, Nathan 3/01/16-Regular 6/30/16 .,, 07 /01/15-Novy, Rebecca 6/30/16 Regular .,. Utah Nuclear Engineering Program (UNEP) 8 UUTR Annual Report 1 July 2015 -30 Jun 2016 Okabe, Parker 10/01/15-Regular 6/30/16 Olsen, Adam 3/01/16-Regular 6/30/16 Porter, JoCee 07 /01/15-Regular 6/30/16 Rapich, Jason 07 /01/15-Regular 6/30/16 Reinhart, 09/01/15-Regular Cameron 6/30/16 Saenz, Brittney 10/01/15-Regular 6/30/16 Schow, Ryan C 07 /01/15-Regular 6/30/16 Schw.erdt, Ian 07 /01/15-Regular 6/30/16 Tamplin, Michelle 07 /01/15-Regular 6/30/16 Waugh, Robert 07 /01/15-Regular 6/30/16 Weimer, Jonathan 07 /01/15-Regular 6/30/16 Wilding, Paul 03/01/16-Regular 6/30/16 Wilson, Dylan 07 /01/15-Regular 6/30/16 Wink;le, Samantha 07 /01/15-Regular 6/30/16 Adjei, Christian 07 /01/15-Regular /Terminated 9/30/15 Fairbanks, 07 /01/15-Regular /Terminated Thomas 9/30/15 Bahamonde 07 /01/15-Regular /Terminated Castro, Christina 10/31/15 Eklul).d, Mathew 07 /01/15-Regular /Terminated 10/31/15 Sisson, Richard 07 /01/15-Regular /Terminated 10/31/15 Dufftp., Taylor 07 /01/15-Regular /Terminated 1/31/16 Utah Nuclear Engj.rl.eering Program (UNEP) 9 UUTR Annual Report 1 July 2015 -30 Jun 2016 Table 8. Summary of whole body exposures to the UNEP personnel Estimated whole body exposure Number of individuals in range (rem) each range Less than 0.1 S8 0.10 to 0.2S 0 o.2s to a.so 0 a.so to 0.7S 0 0.7S to 1.00 0 1.00 to 2.00 0 2.00 to 3.00 0 3.00 to 4.00 0 4.00 to S.00 0 Greater than S rem 0 I. LABORATORYSURVEYS Monthly surveys of the facility were conducted by the University of Utah Radiological Health Department during the reporting period. The surveys have not indicated any unusual radiation levels over previous years. Records of surveys are retained by the facility. " J. ENVIRONMENTAL STUDIES Environmental monitoring conducted by the University of Utah Radiological Health Department indicated no unusual dose rates in the areas surrounding the Merrill Engineering Building, which houses the UUTR reactor facility. Prepared by: Submitted by:.,, Ryan Schow Reactor Supervisor Ryan Reactor Supervisor Utah Nuclear Engineering Program (UNEP) Date: 7 /28/2016 Date: 7 /28/2016 10