Progress in Medical Physics (한국의학물리학회지:의학물리)
- Volume 1 Issue 1
- /
- Pages.91-95
- /
- 1990
- /
- 2508-4445(pISSN)
- /
- 2508-4453(eISSN)
The Construction of Solid State Detector System Using Commercially Available Diode and Its Application
정류기형 다이오드를 이용한 반도체 방사선 검출 장치의 제작과 그 응용에 관한 연구
Abstract
The solid state detector system was constructed using commercially available rectifier diode for the assessment of quality assurance in radiotherapy. Dosimetry system which consists of the electrometer and the water phanton was used for measuring small field size scanning. The measured results, which had linearity in accordance with variation of radiation dose for gamma-ray of Co- 60 and 6 and 10MV photons of linear accelerator, showed quite linear characteristics within 1% error. The percent depth dose of 10MV photon of Mevatron KD linear accelerator was measured in small field size using diode, and the results were compared with that of using ion chambers. The results show that the difference of percent depth dose between the value of diode and that of ion chamber was negligible in large field size. However, in small size less than 4