Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Assessment of N-16 activity concentration in Bangladesh Atomic Energy Commission TRIGA Research Reactor

  • Ajijul Hoq, M. (Institute of Electronics, Bangladesh Atomic Energy Commission) ;
  • Malek Soner, M.A. (Center for Research Reactor, Bangladesh Atomic Energy Commission) ;
  • Salam, M.A. (Center for Research Reactor, Bangladesh Atomic Energy Commission) ;
  • Khanom, Salma (Institute of Electronics, Bangladesh Atomic Energy Commission) ;
  • Fahad, S.M. (Department of Physics, Jahangirnagar University)
  • Received : 2017.03.21
  • Accepted : 2017.11.17
  • Published : 2018.02.25
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Abstract

An assessment for determining N-16 activity concentrations during the operation condition of Bangladesh Atomic Energy Commission TRIGA Research Reactor was performed employing several governing equations. The radionuclide N-16 is a high energy (6.13 MeV) gamma emitter which is predominately created by the fast neutron interaction with O-16 present in the reactor core water. During reactor operation at different power level, the concentration of N-16 at the reactor bay region may increase causing radiation risk to the reactor operating personnel or the general public. Concerning the safety of the research reactor, the present study deals with the estimation of N-16 activity concentrations in the regions of reactor core, reactor tank, and reactor bay at different reactor power levels under natural convection cooling mode. The estimated N-16 activity concentration values with 500 kW reactor power at the reactor core region was $7.40{\times}10^5Bq/cm^3$ and at the bay region was $3.39{\times}10^5Bq/cm^3$. At 3 MW reactor power with active forced convection cooling mode, the N-16 activity concentration in the decay tank exit water was also determined, and the value was $4.14{\times}10^{-1}Bq/cm^3$.

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References

  1. "Air solubility in Water". The Engineering Toolbox. Retrieved December 21, 2007.
  2. M. Ajijul Hoq, M.A. Malek Soner, M.A. Salam, S. Khanom, S.M. Fahad, Estimation of Na-24 activity concentration in BAEC TRIGA research reactor, Results Phys. 7 (2017) 975-979, https://doi.org/10.1016/j.rinp.2017.02.014.
  3. M. Ajijul Hoq, M.A. Malek Soner, A. Rahman, M.A. Salam, S.M.A. Islam, Estimation of 41Ar activity concentration and release rate from the TRIGA Mark-II research reactor, J. Environ. Radioact. 153 (2016) 68-72. https://doi.org/10.1016/j.jenvrad.2015.12.005
  4. BAEC Report, Final Safety Analysis Report (SAR) for the 3 MW TRIGA Mark-II Research Reactor at AERE, Savar, Dhaka, 2006.
  5. General Atomics (GA), Safety Analysis Report for the 3 MW TRIGA Mark-II Research Reactor, AERE, Savar, Dhaka, July 1981. G. A. Document No. E-117-990.
  6. M.I. Hosan, M.A.M. Soner, K.A. Kabir, M.A. Salam, M.F. Huq, Study on neutronic safety parameters of BAEC TRIGA research reactor, Ann. Nucl. Energy 80 (2015) 447-450. https://doi.org/10.1016/j.anucene.2015.02.031
  7. J. Kopecky, Atlas of Neutron Capture Cross Sections. IAEA Nuclear Data Section, Wagramerstrasse 5, A-1400 VIENNA, 1997.
  8. K.S. Krane, Introductory Nuclear Physics, vol. 459, John Wiley & Sons, Inc, New York, 1988.
  9. Stepisnik Matjaz, Pucelj Bogdan, Snoj Luka, Ravnik Matjaz, Activity Analysis of Primary Coolant in TRIGA MARK II Research Reactor. International Conference, Nuclear Energy for New Europe, 2009, pp. 14-17. Bled/Slovenia/September.
  10. "Oxygen Nuclides/Isotopes". EnvironmentalChemistry.com. Retrieved December 17, 2007.
  11. G.D. Parks, J.W. Mellor, Mellor᾽s Modern Inorganic Chemistry, Sixth ed., Longmans, Green and Co, London, 1939.
  12. M.M. Rahman, Mohammad Abdur R. Akond, Mohammad Khairul Basher, Md. Quamrul Huda, Steady-State Thermal-Hydraulic Analysis of TRIGA Research Reactor, World J. Nucl. Sci. Technol. 4 (2014) 81-87. https://doi.org/10.4236/wjnst.2014.42013
  13. Reactor Theory (Neutron Characteristics). Reaction Rates. DOE-HDBK-1019/1-93.
  14. Safety Analysis Report for USGS TRIGA Reactor, U. S. Geological Survey, November 25, 2008.
  15. M.A. Salam, M.A.M. Soner, M.A. Sarder, A. Haque, M.M. Uddin, A. Rahman, M.M. Rahman, M.M. Sarker, S.M.A. Islam, Measurement of neutronic safety parameters of the 3MWTRIGA Mark-II research reactor, Prog. Nucl. Energy 74 (2014) 160-165. https://doi.org/10.1016/j.pnucene.2014.02.025
  16. M.A. Salam, M.A.M. Soner, M.A. Sarder, A. Haque, M.M. Uddin, M.M. Sarker, S.M.A. Islam, Measurement of control rod reactivity and shut down margin of 3 MW TRIGA Mark-II research reactor using analog and digital I&C system, Ann. Nucl. Energy 68 (2014b) 257-261. https://doi.org/10.1016/j.anucene.2014.01.030
  17. K. Shure, The $^{16}O$(n,p)$^{16}N$ Reaction Cross Section, May 1962, p. 27. WAPD-BT-25.

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