ML19063A497

Annual Report for the Dow Triga Research Nuclear Reactor, Docket No. 50-264

ML19063A497
Person / Time
Site:	Dow Chemical Company
Issue date:	02/22/2019
From:	O'Connor P Dow Chemical Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML19063A497 (4)

Text

The Dow Chemical Company Midland, Michigan 48667 February 22, 2019 Document Control Desk United States Nuclear Regulatory Commission Washington, DC 20555

Dear Sir:

Enclosed is the annual report for The Dow TRIGA Research Nuclear Reactor, Docket No. 50-264. If you have any questions; please contact me at (989) 638-6185.

PaulJ. O'Connor Facility Director*

Dow TRIGA Research Reactor Enclosure CC: Geoff Wertz; USNRC Wayde Konze, 1897 Siaka Yusuf, 1602 Bryan Haskins, 1602 Kelly Wegener, 1803 James Weldy, 1803 Michael Buchmann, 1897 Paul O'Connor, 1897

DOW TRIGA RESEARCH REACTOR ANNUAL REPORT- 2018 There was one US NRC inspection in 2018 during which selected aspects of the Dow TRIGA Research Reactor programs were examined. There were no violations found. The annual peer review audit was conducted by Mr. Joseph Talnagi of Ohio State University (Retired) in December of 2018. The audit examined all aspects of the Dow TRIGA nuclear reactor facility programs and there were no safety concerns or non-compliances with US NRC requirements found.

The regular in-house audits of the radiation protection program, safety and housekeeping, and records were also performed by the Dow Chemical Company Radiation Safety Officer and there were no issues found.

There were no significant changes to the facility during 2018. There were however a couple changes to the Reactor Operation Committee (ROC) membership during the year, 2018.

A. Staff, Licenses, and Training The current reactor staff members are:

P. J. O'Connor Facility Director S. 0. Yusuf Reactor Supervisor B. D. Haskins Assistant Reactor Supervisor N. J. Goodman Trainee T. A. Behmlander Observer/frainee There are two Senior Reactor Operators and their operator licenses are current. Dr. Yusuf renewed his Senior Reactor Operator's license in 2018. Mr. Haskins renewed his Senior Reactor Operator's license in 2018.

The annual re-qualification program was carried out according to the NRC approved program, dated September 6, 2011. All licensed operators are up-to-date in their quarterly re-qualification participations, including operating experience, participation in emergency preparedness drills, Reactor Operation Committee meetings, operating examinations, and the annual fuel inventory.

Operation of the reactor is an important part of the training program, thus, the reactor is operated on an as-needed basis which results in numerous operations. Each operation involves reactivity manipulations, use of the control console, placement and retrieval of samples and handling of radioactive materials. The reactor was operated for a total of 218 hours0.00252 days <br />0.0606 hours <br />3.604497e-4 weeks <br />8.2949e-5 months <br /> during 2018 by the two Senior Reactor Operators.

DOW TRIGA RESEARCH REACTOR ANNUAL REPORT- 2018 The ROC is currently composed of the following staff members:

W. V. Konze ROC Chairman P. J. O'Connor Facility Director S. 0. Yusuf Reactor Supervisor K. A. Wegener-Gave Radiation Safety Officer J. R. Weldy EH&S Dow Michigan Operations M. E. Buchmann Process Analytical Global Leader Dr. Konze is the first level manager for the facility on b~half of Analytical Sciences and serves as the chairman for the ROC. Dr. O'Connor is the level 2 manager and the facility director. Dr.

Yusuf is the level 3 manager and the reactor supervisor for the facility. Yusuf is the reactor operations staff member of the ROC. Ms. Wegener-Gave is the Dow Midland location Radiation Safety Officer as well as the TRIGA Radiation Safety Officer and reports through the Dow

_Environmental, Health and Safety department. Mr. J. R. Weldy is the Radiation and Industrial Hygiene Specialist for the Dow Chemical Company and reports through the Industrial Hygiene Expertise Center of the Dow Environmental Health and Safety (EH&S). Mr. M. E. Buchmann is a Process Analytical Global Leader and reports through the Dow Global Process Analytical. Mr.

Weldy and Mr. Buchmann serve as the outside members, (neither members of reactor operations nor members of analytical sciences), of the ROC.

B. Reactor Operating Experience The reactor was operated for 1.13 Megawatt-days in 2018 (a decrease from last year) for a total of 218 hours0.00252 days <br />0.0606 hours <br />3.604497e-4 weeks <br />8.2949e-5 months <br /> (also a decrease from last year). The main purpose of operations at the Dow facility is to perform neutron activation analysis. About 4,644 samples were irradiated in 2018, down by 35% from last year, 2017 and consistent with the number of licensed operators and focus.

C. Major Changes There were no changes made to the facility in 2018.

D. Unscheduled Shutdowns There were 15 unscheduled shutdowns (scrams) during 2018. Thirteen of these scrams were due to a computer function, specifically, the DIS064 device which processes the signals into the DAC computer. The number is consistent with previous years. The one HV scram and one Reactor Room Exhaust scram were age and weather related respectively.

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DOW TRIGA RESEARCH REACTOR ANNUAL REPORT- 2018 E. Major Preventive and Corrective Maintenance of Safety Significance There was no maintenance which had safety significance performed during 2018. There were however, 13 preventive and corrective maintenance items during 2018. Six of these were related to low level noise in the NM 1000 channel. Others were related to the replacements of water purification cartridges, adjustments on the NPlOOO safety channel, replacement of the unit display for the water radioactivity monitor, and heat exchanger routine valve inspections. There were two minor diagnoses and repairs involving +24 volt power supply and the HV test button.

F. Radioactive Effluents The only radioactive material normally released to the environment from the facility is argon-41.

This is produced from activation of the natural argon dissolved in the pool water and subsequently escapes from the pool into the reactor room and from there to the outside of the building. Ar-41 is also produced from the natural argon present in the air used to transport samples from a laboratory into a terminus in the core of the reactor.

Overall, any release, after dilution is estimated to be less than 25% of the allowed or recommended maximum concentration in 10CFR20.

G. Radiation Exposures Radiation exposures received by facility personnel and visitors are monitored using film badges and thermoluminescent detectors. No persons have received exposures approaching 25% of those allowed or recommended in 10CFR20.

H. Outside Sampling and Monitoring There were no incidences requiring outside sampling or monitoring during the year 2018.

P. J. O'Connor Facility Director Dow TRIGA Research Reactor February 22, 2019

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