고 에너지 양성자 가속기에서 생성되는 2차 방사선의 효과적인 차폐에 관한 연구

• 영문명: Study on Effective Shielding of Secondary Radiation Generated by High Energy Proton Accelerator
• 발행기관: 대한방사선과학회(구 대한방사선기술학회)
• 저자명: 배상일(Sang-Il Bae) 김정훈(Jung-Hoon Kim)
• 간행물 정보: 『방사선기술과학』방사선기술과학 제43권 제5호, 383~388쪽, 전체 6쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2020.10.30

영문 초록

High-energy proton accelerators continue to be increasingly used in medical, research and industrial settings. However, due to the high energy of protons, a large number of secondary radiation occurs. Among them, neutrons are accompanied by difficulties of shielding due to various energy distribution and permeability. So In this study, we propose a shielding method that can shield neutrons most efficiently by using multiple-shielding material used as a decelerating agent or absorbent as well as a single concrete shielding. The flux of secondary neutrons showed a greater decrease in the flux rate when heavy concrete was used than in the case of ordinary concrete, and the maximum flux reduction was observed at the front position when using multiple shields. Multiple shielding can increase shielding efficiency more than single shielding however, As the thickness of the multiple shielding materials increased, the decline in flux was saturated. The mixture material showed higher shielding results than the polyethylene when using boron carbonate.

목차

Ⅰ. 서 론

Ⅱ. 대상 및 방법

Ⅲ. 결 과

Ⅳ. 고 찰

Ⅴ. 결 론

REFERENCES

키워드

고 에너지 양성자 가속기 중성자 차폐 다중차폐 차폐효율 High energy proton accelerator Neutron Multiple shielding Shielding efficiency MCNPX