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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국의학물리학회 의학물리 의학물리 제28권 제2호
- 발행연도
- 2017.6
- 수록면
- 45 - 48 (4page)
- DOI
- https://doi.org/10.14316/pmp.2017.28.2.45
이용수
초록· 키워드
오류제보하기
This paper evaluated the amount of radiation generated by wedge filters during radiation therapy using a high-energy linear accelerator, and the dose to the worker during wedge replacement. After 10-MV photon beam was irradiated with wedge filter, the wedge was removed from the linear accelerator, and the dose rate and energy spectrum were measured. The initial measurement was approximately 1 uSv/h, and the radiation level was reduced to 0.3 uSv/h after 6 min. The effective half-life derived from the dose rate measurement was approximately 3.5 min, and the influence of AI-28 was about 53%. From the energy spectrum measurements, a peak of 1,799 keV was measured for AI-28, while the peak for Co-58 was not measured in the control room. The peaks for Au-106 and Cd-105 were found only measurement was done without wedge removement from the linear accelerator. The additional doses received by the radiation worker during wedge replacement were estimated to be 0.08?0.4 mSv per year.
목차
등록된 정보가 없습니다.
참고문헌 (10)
참고문헌 신청
1984 / Neutron contamination from medical electron accelerator
1986 / Neutron measurements around high energy X-ray radiotherapy machines
Chilbani O / 2003 / Photoneutron dose calculations for high energy photon beams from Siemens and Varian LINACS / Med Phys 30
Gudowska I / 1999 / Calcluation of absorbed dose and biological effect iveness from photoneutron reactions in bremsstrahlungbeam of end point 50 MeV / Phys in Med Biol 44:2099
Roig M / 2004 / Photonuclear isotope characterization of a Siemens KDS 18 MeV LINAC head / Phys in Med Biol 49:N242~N246
1986 / Neutron measurements around high energy X-ray radiotherapy machines
Chilbani O / 2003 / Photoneutron dose calculations for high energy photon beams from Siemens and Varian LINACS / Med Phys 30
Gudowska I / 1999 / Calcluation of absorbed dose and biological effect iveness from photoneutron reactions in bremsstrahlungbeam of end point 50 MeV / Phys in Med Biol 44:2099
Roig M / 2004 / Photonuclear isotope characterization of a Siemens KDS 18 MeV LINAC head / Phys in Med Biol 49:N242~N246
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