대한방사선치료학회지 (The Journal of Korean Society for Radiation Therapy)
- 제12권1호
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- Pages.112-116
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- 2000
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- 1598-8449(pISSN)
전신 피부 전자선 조사(TSEB)시 두정부(Vertex)에서의 선량 변화 평가
Evaluation of dose variation at the vertex during Total Skin Electron Beam
- Jeon Byeong-Chul (Department of Radiation Oncology, College of Medicine, Yonsei University) ;
- An Seung-Kwon (Department of Radiation Oncology, College of Medicine, Yonsei University) ;
- Lee Sang-Gyu (Department of Radiation Oncology, College of Medicine, Yonsei University) ;
- Kim Joo-Ho (Department of Radiation Oncology, College of Medicine, Yonsei University) ;
- Cho Kwang-Hwan (Department of Radiation Oncology, College of Medicine, Yonsei University) ;
- Cho Jung-Hee (Department of Radiation Oncology, College of Medicine, Yonsei University) ;
- Park Jae-Il (Department of Radiation Oncology, College of Medicine, Yonsei University)
- 발행 : 2000.12.01
초록
목적 전신피부 전자선 치료시 두정부의 scalp는 항상 사방향으로 입사된다. 본 연구는 두정부에서의 선량균등성을 향상시키기 위한 목적으로 본원에서 자체 제작한 전자선 반사체(electron reflector)를 두정부의 scalp 위치에 놓아 반사되는 전자선을 이용하여 선량변화를 조사하고 전자선 반사체의 효용성을 평가하고자 한다. 대상 및 방법 두정부에서의 선량측정은 6MeV 전자선을 이용한 전리조(ion-chamber)와 열형광선량계(TLD)를 사용하였고, 산란되는 전자선의 영향을 평가하기 위해 자체 제작한
Purpose : The vertex scalp is always tangentially irradiated during total skin electron beam(TSEB) This study was discuss to the dose distribution at the vertex scalp and to evaluate the use of an electron reflector. positioned above the head as a means of improving the dose uniformity. Methods and Materials Vetex dosimetry was performed using ion-chamber and TLD. Measurements were 6 MeV electron beam obtained by placing an acrylic beam speller in the beam line. Studies were performed to investigate the effect of electron scattering on vertex dose when a lead reflector
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