| Wang Meijiao,Yao Kaining,Li Sha,Yue Haizhen,Liu Zhuolun,Jiang Fan,Wu Hao,Wang Ruoxi.The performance of plastic scintillator detector in photon and electron beam[J].Chinese Journal of Radiological Medicine and Protection,2021,41(3):205-211 |
| The performance of plastic scintillator detector in photon and electron beam |
| Received:March 02, 2020 |
| DOI：10.3760/cma.j.issn.0254-5098.2021.03.009 |
| KeyWords:W2 plastic scintillator Cerenkov light radiation correction factor Angular response Radiation therapy |
| FundProject:国家重大研发计划（2019YFF0104405；北京市自然科学基金（1202009） |
| Author Name | Affiliation | E-mail | | Wang Meijiao | Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing 100142, China | | | Yao Kaining | Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing 100142, China | | | Li Sha | Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing 100142, China | | | Yue Haizhen | Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing 100142, China | | | Liu Zhuolun | Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing 100142, China | | | Jiang Fan | Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing 100142, China | | | Wu Hao | Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing 100142, China | | | Wang Ruoxi | Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing 100142, China | ruoxi.wang85@gmail.com |
|
| Hits: 2638 |
| Download times: 1033 |
| Abstract:: |
| Objective To investigate the performance of W2 plastic scintillator in megavolt photon and electron beams. Methods The photon and electron beam energy provided by linear accelerator was used to collect data of the W2 scintillator. The parameters include the electrometer reading stability, W2 dose and dose rate linearity, and angular response. And the dose uncertainty of the W2 correction factors was also investigated. Results The standard deviation of the electrometer reading stability was between 0.03 and 0.47. The linear regression factors of W2 dose were all 1.0; the maximum deviation of the dose rates was 0.61%. The Cerenkov light radiation correction factor(CLR) for 6 and 10 MV were 0.741 and 0.746, respectively, and the CLR for 6, 9, 12 and 15 MeV were 0.750, 0.753, 0.757 and 0.757, respectively. The maximum deviation of dose uncertainty for 15 MeV was 3.15%. Conclusions The signal obtained by the blue and green channel was no angular dependence, the same as the high-energy electron beam, which verified that the Cerenkov radiation correction factor has good linearity. W2 plastic scintillator can be applied to non-coplanar radiotherapy dosimetry. |
| HTML View Full Text View/Add Comment Download reader |
| Close |
|
|
|
