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Simple Calculation Method as a Supplementary Radiation Safety Assessment for Facility with Radiation Generator

  • Kim, Sang-Tae (Nuclear Emergency Division, Nuclear Safety and Security Commission)
  • 투고 : 2018.05.15
  • 심사 : 2018.12.21
  • 발행 : 2018.12.28

초록

The objective of this study was to conduct a radiation shielding analysis for the facility equipped with radiation generator. The analysis was carried out in two aspects. First, from the aspect of the effect caused by primary and leakage radiation. Second, effect of scattered radiation was evaluated by applying a simple calculation method based on a scattering rate concept since effect of scattered radiation is significantly important at maze entrance of the radiation facility. The calculated results obtained using the simple method were compared to the results calculated using Geant4 code and the measured values. The results calculated by the suggested method indicate that slight error exists in a radiation shielding analysis done at the maze entrance comparing to other two results, while the results evaluated at the outside of the maze entrance door are relatively consistent with other values.

키워드

참고문헌

  1. Enforcement Decree of the Nuclear Safety Act, Prom No 27972, NSSC, 2017.
  2. NCRP Report No. 49, Structural shielding design and evaluation for medical use of X-rays and gamma rays of energies up to 10 MeV, NCRP, Bethesda, 1976.
  3. NCRP Report No. 51, Radiation protection design guidelines for 0.1-100 MeV particle accelerator facilities, NCRP, Washington DC, 1977.
  4. NCRP Report No. 151, Structural shielding design and evaluation for megavoltage X- and gamma-ray radiotherapy facilities, NCRP, Bethesda, 2005.
  5. GEANT4 Collaboration, Geant4 User's Documents, Introduction to Geant4 for GEANT4, CERN, 2007.
  6. GEANT4 Collaboration, Physics Reference Manual Version: Geant4 9.5.0 for GEANT4, CERN, 2011.
  7. A. B. Chilton and J. K. Shultis, and R. E. Faw, Principles of Radiation Shielding, Prentice-Hall, Inc., Englewoos Cliffs, 1984.
  8. J. E. Martin, Physics for Radiation Protection, Wiley, WeinHeim, 2013.