ML15218A030
| ML15218A030 | |
| Person / Time | |
|---|---|
| Site: | University of Wisconsin |
| Issue date: | 07/31/2015 |
| From: | Agasie R Univ of Wisconsin - Madison |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML15218A030 (17) | |
Text
- . Nuclear Reactor Laboratory UWNR University of Wisconsin-Madison 1513 University Avenue, Room 1215 ME, Madison, WI 53706-1687, Tel: (608) 262-3392, FAX: (608) 262-8590 email: reactor~engr.wisc.edu, http://reactor.engr.wisc.edu License R-74 Docket 50-156 July 31, 2015 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555
Dear Sir:
Enclosed is a copy of the 2014-2015 Annual .Report for the University of Wisconsin Nuclear Reactor Laboratory as required by Technical Specification 6.7.1(1).
Sincerely, Robert . sie Reactor Dire*ctor Enc. (Annual Report) cc: Compliance Inspector, Craig Bassett Facility Project Manager, Spyros Traiforos Reactor Safety Committee, RSC 1245 409
THE UNIVERSITY OF WISCONSIN NUCLEAR REACTOR LABORATORY FISCAL YEAR 2014-2015 ANNUAL OPERATING REPORT Prepared to meet reporting requirements of:
U. S. Nuclear Regulatory Commission License R-74 Docket 50-156 Technical Specification 6.7.1(1)
Prepared by:
Robert J. Agasie Department of Engineering Physics THE 0UNIVERSITY WISCO6NSIN MADISON
UWNR ANNUAL REPORT- Fiscal Year 2014-2015 Pg f1 15 Page 1 of EXECUTIVE
SUMMARY
OF REACTOR UTILIZATION Instruction: Teaching usage of the reactor during the year included:
- 105 Nuclear Engineering students in laboratory and lecture courses.
- 650 individuals from 12 organizations as part of the UW Nuclear Reactor Outreach Program.
Research: Neutron irradiations during the year included:
- 364 samples irradiated for departments at UW-Madison.
- 4 samples were irradiated for other educational and research institution research programs.
UWNR ANNUAL REPORT- Fiscal Year 2014-2015 Page 2 of 15 TABLE OF CONTENTS A.
SUMMARY
OF' OPERATIONS ........................................... 3
- 1. INSTRUCTIONAL USE.......................................... 3
- 2. OUTREACH AND COMMUNITY SERVICE........................... 4
- 3. SAMPLE IRRADIATIONS AND NEUTRON ACTIVATION ANALYSIS SERVICES.................................................... 6
- 4. CHANGES IN PERSONNEL, FACILITY AND PROCEDURES.......... 7
- 5. RESULTS OF' SURVEILLANCE TESTS AND INSPECTIONS.......... 8 B. OPERATING STATISTICS AND FUEL EXPOSURE........................ 8 C. EMERGENCY SHUTDOWNS AND INADVERTENT SCRAMS................... 8 D. MAINTENANCE....................................................... 9 E. CHANGES IN THE FACILITY OR PROCEDURES REPORTABLE UNDER 10 CFR 50.59....................................................1i0 F.
SUMMARY
OF' RADIATION EXPOSURE OF PERSONNEL..................1i0 G. RESULTS OF' ENVIRONMENTAL SURVEYS..............................1I0 H. RADIOACTIVE EFFLUENTS..........................................1II TABLE 1 ANNUAL ENVIRONMENTAL MONITORING DOSE DATA.............. 12 TABLE 2 LIQUID RADIOACTIVE WASTE DISCHARGED TO SEWER.......... 13 TABLE 3 EFFLUENT FROM STACK....................................... 14 TABLE 4 SOLID WASTE................................................ 15
UWNR ANNUAL REPORT- Fiscal Year 2014-2015 Pg f1 15 Page 3 of A. SUM*MARY OF OPERATIONS
- 1. INSTRUCTIONAL USE Nuclear Engineering (NE) 231, "Survey of Nuclear Engineering" was offered in the spring semester with an enrollment of 11 students. The course is designed for freshmen students interested in nuclear engineering and consists of three lecture modules surveying fission, fusion and radiation science technologies. The fission module concludes with a reactor tour.
Four sections of NE 427 were offered during the academic calendar year with a total enrollment of 31 students.
Several NE 427 experiments use materials that are activated in the reactor. One experiment entitled "Radiation Survey" requires that students make measurements of radiation levels in and around the reactor laboratory.
Three sections of NE 428 were offered during the academic calendar year with a total enrollment of 35 students.
Three experiments in NE 428 require exclusive use of the reactor. These experiments ("Critical Experiment",
"Control Element Calibration", and "Pulsing") required a total of 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> of exclusive reactor use. Other NE 428 laboratory sessions use material that has been irradiated in the reactor ("Fast Neutron Flux Measurements by Threshold Foil Techniques" and "Resonance Absorption").
Individual class sections for Nuclear Engineering 408, "Ionizing Radiation" were held at the Reactor Laboratory, with 28 students participating.
The Reactor Laboratory's continued commitment to its educational outreach program and community service attracts large numbers of community organizations who visit the reactor. A listing of individual schools and educational programs that have visited or received services is provided below in section A.2 of this report.
UWNR ANNUAL REPORT- Fiscal Year 2014-2015 Pg f1 15 Page 4 of
- 2. OUTREACH AND COMMUNITY SERVICE Participating Institution Number of Participants Abundant Life Christian High School 15 Reactor tour with a discussion on applications of nuclear energy and uses of the UW nuclear reactor.
Beloit College 0 Analyzed swipe tests to leak check radioactive sources and performed detector calibrations.
Boy Scouts of America 489 Reactor tour with a discussion on applications of nuclear energy and uses of the UW nuclear reactor. Program included hands on demonstrations of radiation detection and shielding. Program co-sponsored by the UW student branch
- of the American Nuclear Society in support of the Scouts Atomic Energy Merit Badge program.
Bradley Learning Community 22 Reactor tour with a discussion on applications of nuclear energy and uses of the UW nuclear reactor.
Davis-Bahcall Scholars Black Hills State University 10 Reactor tour with a discussion of the nuclear processes during fission. The Davis-Bahcall Scholars Program is a program for South Dakota high school seniors or college freshmen exploring the world of modern scientific research at the Sanford Underground Research Facility. The program includes a road trip to the Soudan Underground Laboratory and NOvA facility in Minnesota, the UW-Madison, Argonne National Laboratory and Fermilab in Illinois.
Evansville High School 18
- Reactor tour with a discussion on applications of nuclear energy and uses of the UW nuclear reactor.
Girl Scouts of USA 14 Reactor tour with a discussion on applications of nuclear energy and uses of the UW nuclear reactor. Program included hands on demonstrations of radiation detection and shielding. Program co-sponsored by the UW student branch of the American Nuclear Society.
UWNR ANNUAL REPORT- Fiscal Year 2014-2015 Pg f1 15 Page 5 of Participating Institution Number of Participants Mount Horeb School 19 Reactor tour with a discussion on applications of nuclear energy and uses of the UW nuclear reactor.
Phoenix Nuclear Lab 4 Reactor tour with a discussion on applications and the use the neutron radiography facility at the UW nuclear reactor.
UW Engineering Physics Department Graduate Student Recruitment Program 16 Reactor tour with a discussion on the capabilities and uses of the UW nuclear reactor in support of graduate research recruitment program.
UW-Whi tewater Department of Physics 0 Analyzed swipe tests to leak check radioactive sources and performed detector calibrations.
Wisconsin Energy Institute 43 Reactor tour with a discussion on applications of nuclear energy and uses of the UW nuclear reactor. The Wisconsin Energy Institute is a world-class leader in clean energy research, education and outreach. The mission of the institute is American energy independence through energy discoveries.
OUTREACH AND COMMUNITY SERVICE USER
SUMMARY
Organizations: 12
Participants:
65 650
UWNR ANNUAL REPORT- Fiscal Year 2014-2015 Pg f1 15 Page 6 of
- 3. SAMPLE IRRADIATIONS AND NEUTRON ACTIVATION ANALYSIS SERVICES There were 368 individual samples irradiated during the year. Of these samples, 219 were irradiated for 15 minutes or less. Samples accumulated 148.9 irradiation space hours and 366.9 sample hours. Many samples were irradiated and then counted at the Reactor Laboratory as part of our neutron activation analysis program. In the listing below the notation (NAA) indicates that the samples were processed by our neutron activation analysis program.
Department of Anthropology, UW-Madison (NAA) 189 samples, 155.7 sample hours NAA to characterize fragments of steatite manufacturing debris excavated from the archaeological site of Harappa, Pakistan.
Department of Electrical & Computer Engineering, UW-Madison 3 samples, 0.3 sample hours Irradiation of hafnium dioxide semi-conductors to induce damage that will change the electrical properties of the material.
Department of Engineering Physics, UW-Madison 6 samples, 6.2 sample hours Irradiation of fiber optics and diamond diodes temperature sensors as part of the Advanced Instrumentation for Transient Reactor Testing program at the UW-Madison in support of the DOE TREAT transient reactor restart initiative.
Department of Engineering Physics, UW-Madison Nuclear Instrumentation Laboratory 111 samples, 92.3 sample hours Irradiation of foil sources for radiation detector experiments, including absolute counting for neutron flux measurements and activation of samples for neutron activation analysis experiment.
UWNR ANNUAL REPORT- Fiscal Year 2014-2015 Pg Page 7 off1 15 Department of Engineering Physics, UW-Madison NE 428 24 samples, 25.9 sample hours Irradiation of foils for resonance absorption measurements and fast neutron flux measurements.
Department of Engineering Physics, UW-Madison UW Nuclear Reactor Laboratory 31 samples, 82.3 sample hours Production of calibration sources for required reactor measurements and development of methods for instrumental neutron activation analysis.
Oak Ridge National Laboratory (NAA) 4 samples, 4.2 sample hours A proof of concept experiment to identify materials on a cotton swipe inside a plastic bag without opening the bag in support of policies pertaining to the Nuclear Non-Proliferation Treaty.
- 4. CHANGES IN PERSONNEL, FACILITY AND PROCEDURES Any changes reportable under 10 CFR 50.59 are indicated in section E of this report.
Other changes to the facility included the replacement of the waste hold tank manometer level indicator with an ultrasonic level indicator, the installation of a pressure transducer to provide a wide range pool level monitor and the replacement of the water softeners.
Personnel changes during the year were as follows:
The following Operator Licenses were terminated:
Name License Effective Date Joshua Havertape OP-71100 December 17, 2014 Lucas Zachow OP-71216 June 15, 2015 Effective February 20, 2015, Dr. Douglass L. Henderson became the chair of the department of Engineering Physics at the University of Wisconsin at Madison (UW-Madison) replacing Dr. James (Jake) P. Blanchard.
UWNR ANNUAL REPORT-* Fiscal Year 2014-2015 Pg Page 8 off1 15
- 5. RESULTS OF SURVETLLANCE TESTS AND INSPECTIONS The program of inspection and testing of reactor components continues, satisfactorily meeting procedural acceptance criteria. Inspection of underwater components during the annual maintenance sh6wed no deterioration or abnormal wear.
The pool leak surveillance program continues to monitor the pool evaporation rate, the poo1 make-up volume, and pool water radioactivity. The pool leak surveillance program indicated that no water effluent has been released to the environment.
B. OPERATING STATISTICS AND FUEL EXPOSURE Operating Period Critical{ MW-Hrs Runs Pulses Fiscal Year_ _ _ _I_ __
2014-2015 267.33 200.13 70 9 TRIGA 30/20 LEU 2,015.23 1,289.73 849 227 Core K21-R6 was operated throughout the year. The excess reactivity of this core was determined to be 4.110%p.
C. EMdERGENCY SHUTDOWNS AND INADVERTENT SCRAMS There were two automatic SCRAMS or manual emergency shutdowns during the year. Each is described below in chronological sequence.
November 11, 2014; SCRAM from Core Inlet Monitor.
Deterioration of the thermocouple connector from the core inlet monitor thermocouple led to a momentary open in the thermocouple circuit. Due to the upscale burnout feature of the core inlet monitor a core inlet temperature high trip occurred. The thermocouple connector was replaced.
January 20, 2015; SCRAM from Core Inlet Monitor. Following an extended outage during which the reactor pool had cooled
UWNR ANNUAL REPORT- Fiscal Year 2014-2015 Pg f1 15 Page 9 of below the core inlet monitor low temperature alarm the reactor was operated at full power. As the pool temperature increased to the core inlet monitor low temperature alarm set point the on duty operator did not understand that hysteresis prevented the core inlet monitor from automatically resetting the low temperature alarm.
The operator chose to attempt to manually reset the low temperature alarm by depressing the core inlet monitor trip reset. As a result of a failsafe feature, the core inlet monitor temporarily opens the trip relay before attempting to close it during a reset; therefore the reactor scrammed.
D. MAINTENANCE The Preventive Maintenance Program continues to maintain equipment and systems in good condition. Routine replacement of demineralizer resins occurred on October 29, 2014.
Corrective maintenance performed as a follow up action necessary for reactor restart following an automatic SCRAM is covered in section C of this report. Additional corrective maintenance was performed on the following installed systems, structures and components (SSC) as described in the SAR:
On August 21, 2014 following the argon correlation gas calibration test the gas heads of the Stack Air Monitor (SAM) and Continuous Air Monitor (CAM) were subject to a significant vacuum which ruptured the beta channel detector's thin windows. Both beta channel detectors were replaced and the SAM and CAM recalibrated. The systems were returned to service after the calibration.
On February 25, 2015 the Stack Air Monitor (SAM) System vacuum pump failed as a result of the graphite vanes breaking. The vanes were replaced and the vacuum pump verified to operate within design specifications.
UWNR ANNUAL REPORT- Fiscal Year 2014-2015Pae1of5 Page i0 of 15 E. CHANGES IN THE FACILITY OR PROCEDURES REPORTABLE UNDER 10 CFR 50.59 There no changes to the facility reportable pursuant to 10 CFR 50.59 completed during the year.
F.
SUMMARY
OF RADIATION EXPOSURE OF PERSONNEL (01/01/14 - 12/31/14)
The personnel radiation monitoring program at the University of Wisconsin for the past calendar year used Landauer Luxel brand monitors for whole body and extremity exposure. No personnel received any significant radiation exposure for the above period. The highest annual doses recorded were 11 mrem to the whole body and 40 mrem to the extremities.
The highest dose received by a member of the public visiting the reactor lab was 0.094 mrem, as measured by Siemens brand Electronic Personal Dosimeters.
Monthly radiation surveys continue to demonstrate acceptable radiation dose rates within the reactor laboratory and no contamination.
G. RESULTS OF ENVIRONMENTAL SURVEYS (01/01/14 - 12/31/14)
The environmental monitoring program at the University uses Landauer Luxel brand area monitors located in areas surrounding the reactor laboratory. Table 1 indicates the dose a person would have received if continuously present in the indicated area for the entire 2014 calendar year.
UWNR ANNUAL REPORT- Fiscal Year 2014-2015 Page i1 of 15 H. RADIOACTIVE EFFLUENTS
- 1. LIQUID EFFLUENTS Liquid waste discharges to the sanitary sewer from the facility during the year are detailed in Table 2.
No liquid effluents were released to the environment during the year.
- 2. EXHAUST EFFLUENTS Table 3 presents information on stack discharges during the year.
- 3. SOLID WASTE Solid waste transferred from the facility during the year are detailed in Table 4.
UWNR ANNUAL REPORT- Fiscal Year 2014-2015 Page 12 of 15 TABLE 1 ANNUAL ENVIRONMENTAL MONITORING DOSE DATA (01/01/14 - 12/31/14)
Annual Dose Location (mrem)
Dose Inside Reactor Laboratory Stack <i Highest Dose in Non-restricted Area 17 Highest Dose in Occupied* Non-restricted Area 7 Average Dose in all Non-restricted Areas 2.39 (26 Monitor Points)
- Occupied areas include classrooms, offices, and lobbies/meeting areas where an individual might reasonably spend in excess of 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> per day
UWNR ANNUAL REPORT- Fiscal Year 2014-2015Pae1of5 Page 13 of 15 TABLE 2 LIQUID RADIOACTIVE WASTE DISCHARGED TO SEWER Release Date: 07/24/2014 Gallons Released: 1525 Total pCi: 7.91 Sum of Fraction of MPC 0.0343 w/o dilution:
Sum of Fraction of MPC daily dilution: 0. 0022 MPC (pCi/ml) Released Isotope Co-58 2 .00E-04 1. 60 pCi
- 2. 77E-07 pCi/ml 0.0014 Fraction of MPC Co-GO 3.00E-05 5.64 pCi 9.77E-07 pCi/ml 0.0326 Fraction of MPC Mn-54 3.00E-4 0.67 pCi 1.17E-07 pCi/ml 0.0004 Fraction of MPC Total volume of water released to the sanitary sewer (gallons) = 1525 Total activity released to the sanitary sewer (pCi) = 7.91 Average daily sewage flow for dilution (gallons) = 2.37E+4 Maximum fraction of MONTHLY release limit with DAILY dilution = 0.0022 Maximum fraction of MONTHLY release limit with MONTHLY dilution = 7.23E-5
UWNR ANNUAL REPORT- Fiscal Year 2014-2015Pae1of5 Page 14 of 15 TABLE 3 EFFLUENT FROM STACK
- 1. Particulate Activity There was no discharge of particulate activity above background levels.
- 2. Gaseous Activity - All Argon-41 Activity Maximum Average Month Discharged Concentration Concentration (Curies) (pCi/ml) (pCi/ml)
July 2014 0.096 7. 330E-7 6. 334E-9 August 0.081 3. 900E-7 4. 967E-9 September 0.121 3. 673E-7 7. 541E-9 October 0.158 3. 850E-7 9. 645E-9 November 0.117 5. 011E-7 7. 240E-9 December 0.041 3. 850E-7 2. 377E-9 January 2015 0.066 6. 237E-7 3. 862E-9 February 0.192 5. 690E-7 1. 254E-8 March 0. 112 2. 850E-7 6. 586E-9 April1 0.066 3. 670E-7 4. 063E-9 May 0.012 2. 210E-7 0. 731E-9 June 0.009 2. 430E-7 0. 597E-9 Total Maximum Average 1.071. 7. 330E-7 5. 540E-9 Using the Gaussian Plume model, as described in section 13.1.7.2 of the "Safety Analysis Report for the University of Wisconsin Nuclear Reactor", a concentration of 6E-5 pCi/ml at the stack discharge would result in a maximum air concentration of IE-8 pCi/ml at any point downwind.
UWNR ANNUAL REPORT- Fiscal Year 2014-2015 Pg Page 15 5 of f1 15 TABLE 4 SOLID WASTE Date: 11/20/14 TOTAL VOLUME 15.6 ft 3 3 Volume: 15.6 ft Constituents: Routine Consumables Activity Total Activity by Isotope Isotope (mCi) (mnCi)
Co-57 0.0001 0.0001 Co-5 8 0. 0002 0.0002 Co-6O 0. 5200 0.5200 Mn-54 0.0077 0.0077 Zn-65 0. 0007 0.0007 Total Activity TOTAL ACTIVITY per Transfer (mCi): 0.5287 0.5287 mCi