Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
권호 표지
DOI QR코드

DOI QR Code

Shielding Evaluation and Activation Analysis of Facilities by Neutron Generator for the Development of 20 Feet Container Inspection System

  • Jin-Woo Lee (Korea Atomic Energy Research Institute (KAERI)) ;
  • Dae-Sung Choi (Korea Atomic Energy Research Institute (KAERI)) ;
  • Gyo-Seong Jeong (Korea Atomic Energy Research Institute (KAERI))
  • Received : 2023.11.30
  • Accepted : 2023.12.21
  • Published : 2023.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

KAERI(Korea Atomic Energy Research Institute) is conducting research and development of large-scale radiation generators and the latest radiation measuring instruments. In particular, research and development of security screening equipment using an electron beam accelerator and a neutron generator is in progress recently. Globally, 20 ft containers are used to transport imports and exports, and electron beam accelerators are radiation sources to measure the shape of the material inside the container during customs inspections in each country. KAERI is developing a device that can use an electron beam accelerator and a neutron generator sequentially to grasp the shape of various materials as well as the location of the internal target material. In this study, when using the neutron generator, the radiation dose and the degree of activation by neutron for the facility and surrounding environment, facility equipment were simulated using MCNP and FISPACT code. As a result, the shielding structures inside and outside the radiation control area were satisfactory to the reference level established conservatively based on the Korean Nuclear Act.

Keywords

Acknowledgement

This work was supported by a research grant from the Korea Atomic Energy Research Institute (Grant No. 521230-23 & 523170-23).

References

  1. Chichester DL and Pierce GD. 2007. Analysis of a shield design for a DT neutron generator test facility. ARI 65:1125-1133. https://doi.org/10.1016/j.apradiso.2007.05.008. 
  2. Lee JW, Lee SB, Lee HJ and Jeong GS. 2018. Radiation Safety Report of Radiation Use License for Radiation Generators in KAERI-ARTI. 
  3. Lai BL, Chang SL and Sheu RJ. 2022. Demonstration of the Effectiveness of Monte Carlo-Based Data Sets with the Simplified Approach for Shielding Design of a Laboratory with the Therapeutic Level Proton Beam. JRPR 47(1):50-57. https://doi.org/10.14407/jrpr.2021.00227. 
  4. Park KS, Kim HW, Sohn HD, Kim NK, Lee CK, Lee Y, Lee JH, Hwang YH, Lee MH, Lee DK and Jung DW. 2020. Study on Dose Rate on the Surface of Cask Packed with Activated Cutoff Pieces from Decommissioned Nuclear Power Plant. JRPR 45(4):178-186. https://doi.org/10.14407/jrpr.2020.45.4.178. 
  5. ICRP. 1996. Conversion Coefficients for use in Radiological Protection against External Radiation. ICRP Publication 74. 
  6. UK Atomic Energy. 2007. FISPACT-2007 EASY Documentation Series. EURATOM/UKAEA Fusion Association. 
  7. Sublet JC, Eastwood JW, Morgan JG, Gilbert MR, Fleming M and Arter W. 2017. An Advanced Simulation System for Activation, Transmutation and Material Modelling. NDS 139:77-137. https://doi.org/10.1016/j.nds.2017.01.002. 
  8. Kim HS, Lee JY, Choi Sh, Bang YB, Ye SJ and Kim GH. 2021. Design and Fabrication of CLYC-Based Rotational Modulation Collimator (RMC) System for Gamma-Ray/Neutron Dual-Particle Imager. JRPR 46(3):112-119. https://doi.org/10.14407/jrpr.2021.00262. 
  9. UK Atomic Energy. The FISPACT-II User Manual. UKAEA-CCFE-RE(21)02. 
  10. NCRP. 2007. Neutron Contamination from Medical Electron Accelerators. NCRP Report No.79. 
  11. US NRC. 1984. Long Lived Activation Products in Reactor Materials. NUREG/CR-3474. 
  12. Lee JS, Min JY and Jeon KN. 2014. Activation Properties to Aggregates Type for Low Activation Concrete. IJCSM 2014(10):579-580. 
  13. Barkhtiari M, Oranj LM, Jung NS, Lee AR and Lee HS. 2020. Study on Concrete Activation Reduction in a PET Cyclotron Vault. JRPR 45(3):130-141. https://doi.org/10.14407/jrpr.2020.45.3.130.