Radiation tests for a single-GEM-loaded gaseous detector
- Authors
- Lee, Kyong Sei; Hong, Byungsik; Park, Sung Keun; Kim, Sang Yeol
- Issue Date
- 11월-2014
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Gas electron multiplier; Gaseous ionization detector; Particle-beam profiles; Dose verification
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.65, no.9, pp.1367 - 1373
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 65
- Number
- 9
- Start Page
- 1367
- End Page
- 1373
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/96967
- DOI
- 10.3938/jkps.65.1367
- ISSN
- 0374-4884
- Abstract
- We report on a systematic study of a single-gas-electron-multiplier (GEM)-loaded gaseous detector developed for precision measurements of high-energy particle beams and for dose verification in particle therapy. In the present study, a 256-channel prototype detector having an active area of 16 x 16 cm(2) and operating using a continuous current-integration-mode signal-processing method was manufactured and tested with X-rays emitted from a 70-kV X-ray generator and 43-MeV protons provided by the MC50 proton cyclotron at the Korea Institute of Radiological and Medical Science (KIRAMS). The amplified detector response was measured for X-rays with an intensity of about 5 x 10(6) Hz cm(-2). The linearity of the detector response to the particle flux was examined and validated by using 43-MeV proton beams. The non-uniform development of the amplification for the gas electrons in space was corrected by applying a proper calibration to the channel responses of the measured beam-profile data. We conclude from the radiation tests that the detector developed in the present study will allow us to perform quality measurements of various high-energy particle beams and to apply the technology to dose-verification measurements in particle therapy.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Science > Department of Physics > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.