ML15222A250

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University of Utah - Annual Operating Report for the Period of July 1, 2014 Through June 30, 2015
ML15222A250
Person / Time
Site: University of Utah
Issue date: 07/27/2015
From: Jevremovic T, Schow R
Univ of Utah, Salt Lake City
To:
Document Control Desk, Office of Nuclear Reactor Regulation
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Download: ML15222A250 (12)
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THE:U U NIVE RSITY 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 27, 2015 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 To whom it may concern:

Enclosed please find the Annual Operating Report for the University of Utah TRIGA Nuclear Reactor, License No. R-126, Docket number 50-407, for the period of 1 July 2014 through 30 June 2015. 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) 587-9696.

Respectfully, T'fft'jana Jevre~fovic, Ph. D.

Energy Solufions Presidential Endowed Chair Professor in Nuclear Engineering Director, Univ"ersity of Utah Nuclear Engineering Program Professor of Nuclear Engineering Professor of Civil and Environmental Engineering Professor of Chemical Engineering 2298 MEB, 50 South Central Drive The University of Utah, Salt Lake City, UT 84112 Phone: 801.587.9696 E-mail: Tatj ana.Jevremovic@utah, edu UIRL: http ://www.nuclear.utah. edu kfgL

UUTR Annual Report UUT AnualReprt1 July 2014 ~30 Jun 2015 The University of Utah TRIGA Reactor (UUTR)

Annual Operating Report for the period 1 July 2014 through 30 June 2015 Ryan C. Schow, UUTR Supervisor Dr. Tatjana Jevremovic, UNEP & UUTR Director Utah Nuclear Engineering Program (UTNEP)1 1

UUTR Annual l*eport UUTRAnnul Reort1 July 2014 ~30 Jun 2015 A. NARRATIVE

1. Operating Experience The University of Utah TRIGA Reactor (UUTR), License No. R-126, Docket No. 50-407, was critical for 82.584 hours0.00676 days <br />0.162 hours <br />9.656085e-4 weeks <br />2.22212e-4 months <br /> and generated 2589.667 kilowaft-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 major 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
  1. 24-B
  1. 24-B
  1. 24-B Configuration 7/1/14 10/28/14 4/22/15 Date Worth ($)

Worth ($)

Worth ($)

Safety Rod 2.323 2.300 2.270 Shim Rod 1.473 1.487 1.467 Regulating Rod 0.263 0.277 0.273 Excess Reactivity 0.640 0.655 0.629 Shutdown Margin 1.096 1.109 1.112

b. Control Rod Inspection The biennial control rod inspection was performed during May of 2014 and was not required to be performed from July 1, 2014 to June 30, 2015.
c. Reactor Power Level Instrumentation Calorimetric power calibrations were performed on 8/21/14 and 2/25/15 with the results shown in Table 2.

Uitali Nuclear Engineering Prograan (UINEP)2 2

UUTR Annual Report UTJR Anua Reort1 July 2014 - 3Jun 2015 Table 2. Summary of calorimetric power calibration Date Measured %

Calculated Power Level

____Power_

8/21/14 89.2 83.86 2/25/15 89.5 91.25 The adjustment of power monitoring channels procedure was performed on 8/26/14 following the calorimetric results received on 8/21/14.

d. Fuel Inspection The biennial fuel inspection was performed during May of 2014 and was not required to be performed from July 1, 2014 to June 30, 2015.
e. Fuel Temperature Calibration Fuel temperature circuits were calibrated on 9/8/14 and 2/27/15. The circuits were calibrated to less than or equal a 2°C error over the range from 20 °C to 400 °C.
f. Reactor Safety Committee (RSCi) 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.

Table 3. Audit summary Audit Period Auditor Operation and 1 Jan. 2014 to 30 Jun. 2014 James M. Byrne Maintenance Radiation Safety and 1 Jul. 2013 to 30 Jul. 2014 Fred Monette ALARA Karen Langley Operation and 1 Jul. 2014 to 31 Dec. 2014 James M. Byrne Maintenance

g. Environmental Surveys Nine environmental monitors are located in the areas surrounding the UUTR. A maximum exposure of 44 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.

Utah Nuclear Engineering Program (UNEP) 3

UUTI% Annum Report UIJR Anua Reort1 July 2014 ~30 Jim 2015 Table 4. Summary of environmental monitoring around the UUTR Year Average quarterly readings for the 8 environmental monitors (mrem) 2014 33.81 2013 33.88 2012 35.56 2011 35.13 2010 36.00 2009 34.56 B. ENERGY OUTPUT The UUTR reactor was critical for 82.584 hours0.00676 days <br />0.162 hours <br />9.656085e-4 weeks <br />2.22212e-4 months <br /> and produced 0.1079 megawatt.days (2589.667 kilowatt.hours) of energy during this reporting period. Since initial criticality, the reactor has been operated for a total of 3869.461 hours0.00534 days <br />0.128 hours <br />7.622354e-4 weeks <br />1.754105e-4 months <br /> with an accumulated total energy output of 9.334 megawaft.days (224027.195 kilowatt.hours).

C. EMERGENCY SHUTDOWNS AND INADVERTENT SCRAMS:

There were five inadvertent SCRAMs that occurred during this period:

9/30/14, 12/16/14, 3/11/15, 3/25/15, and 3/27/15, 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 09/30/14 1873 Linear Linear power indication Reactor power Power oscillated when selector switch operating the reactor examined power selector switch 12/16/14 1879 Linear Linear power indication Operator coached Power oscillated when operator and all operators inadvertently operated trained on the linear power operation of the selector switch linear power selector switch 03/11/15 1886 Linear Linear power indication Reactor power Power oscillated when selector switch operating the reactor examined

________power selector switch Utaaa Nuclear Engineering Program (UNEP)4 4

UUTR Annual Report UTJR nnal eprt1 July 2014 -30 Jun2015 03/25/15 1887 Linear Linear power indication Reactor power Power oscillated when selector switch operating the reactor examined power selector switch 03/27/15 1888 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 began being replaced in June 2015 and is still under maintenance and replacement as of July 1, 2015.

During fission counter replacement the reactor control console wiring and connections are being cleaned and organized.

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: 32.241 *Ci.

Utah Nuclear Engineering Program. (UNEP) 5

UUTR Annual Report UU~hAnnal ?.eort1 July 2014 -30 Jun 2015 The UUTR was operated for 82.584 hours0.00676 days <br />0.162 hours <br />9.656085e-4 weeks <br />2.22212e-4 months <br /> at power levels up to approximately 90 kW. At this power level Ar-41 production is substantially below MPG values for unrestricted areas. The minimum detectable concentration of At-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 bel.434x10-1 ° l*Ci/ml that is approximately 0.005 % of the DAC. The total amount of Ar-41 released was estimated to be 32.241 *Ci. 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 32.241 *Ci. A monthly summary of gaseous releases is given in Table 6. Total activity of gaseous effluent was therefore 32.241 g*Ci.

Table 6. Summary of Monthly Gaseous Radioactive Effluent Month Power Ar-41 (l*Ci)

Ar-41 (zCi/ml)

Estimated Release

% of DAC (kWh)

P-32 and all others Jul 14 655.584 8.162 3.63021E-11 0

0.001%

Aug 14 663.796 8.264 3.67568E-11 0

0.001%

Sep 14 577.637 7.192 3.19859E-11 0

0.001%

Oct 14 105.191 1.310 5.82481E-12 0

0.000%

Nov 14 48.328 0.602 2.6761E-12 0

0.000%

Dec 14 74.796 0.931 4.14173E-12 0

0.000%

Jan 15 0

0.000 0

0 0.000%

Feb 15 296.352 3.690 1.64101E-11 0

0.001%

Mar 15 50.582 0.630 2.80091E-12 0

0.000%

Apr 15 117.401 1.462 6.50092E-12 0

0.000%

May 15 0

0.000 0

0 0.000%

Jun 15 0

0.000 0

0 0.000%

Total 2589.667 32.241 1.43399E-10 0

0.005%

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 2014 through 30 June 2015.

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 Utahi Nuclear Engineering Programn (UJNEP)6 6

UTJT AnualReprt July 2014 -30 Jun 2015 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 7/1/14-6/30/15 Doses: <1 mrem average; 1 mrem highest measured Dose Equivalent Limit Maximum Permissible Dose Equivalent = 5000 mrem/year (1250/quarter).

Minimum Detectable Dose per Monthly Badge = 1 mrem.

Visitors Six hundred and thirty-seven (637) individuals visited the reactor facility during the period 1 July 2014 to 30 June 2015. None of the visitors received a measurable dose.

Table 7. Summary of Monitored Personnel Name MonitoringDuyCtgr PeriodDuyatgr Adjei, Christian 07/01/14-Regular Alroumi, Fawaz 07/01/14-Reua 6/30/15Reua Anderson, Jacqui 10/01/14-Regular Bahamonde 07/01/14-Reua Castro, Christina 6/30/15Reua Burak Adam10/01/14-BrkAdm6/30/15 Regular Burnham, Steven 07/01/14-Regular 07/01/14-Chidester, Joshua 6/30/15 Regular Cutic, Avdo 07/01/14-Reua 6/30/15Reua Doane, Samuel 10/01/14-Regular Duffin, Taylor 02/01/15-Reua 6/30/15 Regular_________

Utali Nuclear Engineering Program (UTNEP)

'7

UUTR Annual Report UtIR Anua Reort1 July 2014 ~30 Jun 2015 Eklund, Mathew 07/1/114-6/30/15 Regular Fairbanks, 07/01/14-Reua Thomas 6/30/15 Regular_________

Flygare, Joshua 10/01/14-Reua 6/3,0/15 Regular_________

FoleyAmanda 10/01/14-Reua FlyAmna6/30/15 Regular________

Gee, Wionphan 11/01/14-Reua GeWmnhn 6/30/15 Regular________

Han, Dahee 04/01/15-Reua 6/30/15 Regular_______

Hans, achary10/01/14-Reua anacay6/30/15 Regular_________
Hinrihs, enny 10/01/14-Reua
  • in cheny6/30/15 Regular_________

Jevremovic, 07/01/14-Reua Tatjana 6/30/15 Regular_________

Kanno, Nicholas 10/01/14-Regular Kavouras, John 07/01/14-Regular 64/30/15-Kim, Donghoon 04/301/15-Regular 62/30/15-King, Travis 02/301/15-Regular Lee, Sangkyu 07/01/14-Reua 6/30/15 Regular________

Levinthal, Joseph 07/01/14-Reua 6/30/15 Regular________

Lintereur, Azaree 11/01/14-Reua 6/30/15 Regular_________

Lund, Matthew 07/01/14-Reua 6/30/15 Regular________

McDonald, Luther 07/01/14-Reua 6/30/15 Regular________

Minko, Aliaksei 07/01/14-Reua 6/30/15 Regular_________

Morgan, David 07/01/14-Reua 6/30/15 Regular________

Utah Nuclear Engineering Program. (T-NEP)8 8

UUTR Annual Report UTJR Anua Reort1 July 2014 ~30 Jun 2015 Novy, Rebecca 02/01/15-6/30/15 Regular PreJee02/01/15-Reua Porer Joee6/30/15 Regular_________

Rapich, Jason 07/01/14-Reua 4/30/15 Regular________

07/01/14-Reua Schow, Ryan C 6/30/15 Regular__

Schwerdt, Ian 02/01/15-Reua 6/30-15 Regular________

Sisson, Richard 07/01/14-Reua 6/30/15Reua Tamplin, Michelle 11/01/14-Reua 6/30/15Reua Walton, Mary 07/01/14-Reua 6/30/15Reua Waugh, Robert 04/01/15-Reua 6/30/15 Regular________

Weimer, Jonathan 08/01/14-Reua 6/30/15Reua Wilson, Dylan "

10/01/14-Reua 6/30/15Reua Winkle, Samantha 07/01/14-Reua 6/30/15Reua Bautista, Victor 07/01/14-RglrTriae 7/31/14 RglrTr iae Bindra, Hitesh 07/01/14-RglrTriae 7/31/14 RglrTr iae Boyd, Dallon 07/01/14-RglrTriae 7/31/14 RglrTr iae Jasaraj, Elton 07/01/14-RglrTriae 7/31/14 RglrTr iae McCoy, Kaylyn 07/01/14-RglrTriae 7/31/14 RglrTr iae Painter, Daniel 07/01/14-RglrTriae 7/31/14 RglrTr iae Varun, Vijay 07/01/14-RglrTriae 7/31/14 Regular/Terminated___

Williams, 07/01/14-RglrTriae Tristalee 7/31/14 Regular/Terminated___

Utab. Nuclear Engineering Program (UNEP)9 9

UUTR Annual Report UtJT AnualReprti July 2014 ~306un 2015 Noble, Brooklyn 07/01/14-8/31/14 Regular/Terminated Sandstrom, 07/01/14-RglrTriae Yumiko 8/31/14 Regular/Terminated__

Alamaniotis, 07/01/14-RglrTriae Miltiadis 10/31/14 Regular/Terminated___

Derber, Robert 07/01/14-RglrTriae 10/31/14 Regular/Terminated___

Quach, Quang 07/01/14-RglrTriae 12/31/14 Regular/Terminated__

Santora, Joseph 07/01/14-RglrTriae 12/31/14 Regular/Terminated___

Hernandez, 07/01/14-Regular/Terminated Hermilo 2/28/15 Moffitt, Gregory 07/01/14-RglrTriae 2/28/15 Regular/Terminated___

Kennington, 10/01/14-RglrTriae Connor 4/30/15 Regular/Terminated___

Bean, Amy 10/01/14-RglrTriae 5/31/15

__egular/Terminated Johnson, Seth 10/01/14-RglrTriae 5/31/15 Regular/Terminated___

Martinez, Brian 10/01/14-RglrTriae 5/31/15 RglrTriae Obadina, Sarah 07/01/14-RglrTriae 5/31/15

__eular/Terminated__

Robinson, Robbie 09/01/14-RglrTriae 5/31/15

__egular/Terminated__

Simmons, Mindy 10/01/14-RglrTriae 5/31/15

__egular/Terminated__

Stilson, Kameron 10/01/14-RglrTriae 5/31/15 Regu__ar/Ter____nated Utsh Nuclear Engineering Program (UTNEP) 110

UUTR Annual Report U~J Anua Reort1 July 2014 - 30 Jun 2015 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 66 0.10 to 0.25 0

0.25 to 0.50 0

0.50 to 0.75 0

0.75 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 5.00 0

Greater than 5 rem 0

I. LABORATORY SURVEYS 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:

Approved by:

Ryan Schow f Reactor Supervisor Ryan Schow /*

"/

Reactor Supervisor Tat'ana lev m~ovic*

Director Date: 7/27/2015 Date: 7/27/2015 Date: 7/28/2015 Utah Nuclear Engineering Program (UNEP) 111

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