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Analysis of corrected Cerenkov emission during electron radiotherapy by Monte Carlo method
Li, Yi1,2,4; Liu, Hongjun1,3; Huang, Nan1; Wang, Zhaolu1; Zhang, Chunmin2
Department瞬态光学研究室
2020
Source PublicationApplied Radiation and Isotopes
ISSN09698043;18729800
Contribution Rank1
Abstract

Cerenkov emission during electron radiotherapy had been emerging as a new dose assessment approach for clinical radiotherapy and could be imaged through a standard commercial camera. The purpose of this work aimed to study the accuracy of corrected Cerenkov emission method during electron radiotherapy by Monte Carlo (MC) method. GAMOS MC software was used to model the physics of electron therapy and calculated dose and Cerenkov photon distribution in water phantom. Compared to ionization chamber and diode measurement, MC simulated dose discrepancy was less than 1% in percentage depth dose (PDD) curves and less than. 2% in crossline profile curves, which was acceptable for clinical criterion. Compared to ionization chamber dose measurement, MC simulated Cerenkov discrepancy was less than 2% in crossline profile distribution, which was acceptable for clinical criterion. However, the Cerenkov PDD curves tended to overestimate the dose at the build-up region and underestimate the dose at the remaining attenuation region. After increasing the Cerenkov distribution depth to 2–3 mm, the discrepancy became well within 1% at the remaining attenuation region, which was acceptable for clinical criterion. Therefore, corrected Cerenkov emission could be used to assess PDD accuracy and crossline profile accuracy during electron radiotherapy. © 2020 Elsevier Ltd

KeywordCorrected cerenkov emission Analysis Electron radiotherapy Monte Carlo
DOI10.1016/j.apradiso.2020.109481
Indexed ByEI
Language英语
PublisherElsevier Ltd
EI Accession Number20204409417426
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/93771
Collection瞬态光学研究室
Corresponding AuthorLiu, Hongjun; Zhang, Chunmin
Affiliation1.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China;
2.School of Physics, Xi'an Jiaotong University, Xi'an; 710049, China;
3.Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China;
4.University of Chinese Academy of Science, Beijing; 100084, China
Recommended Citation
GB/T 7714
Li, Yi,Liu, Hongjun,Huang, Nan,et al. Analysis of corrected Cerenkov emission during electron radiotherapy by Monte Carlo method[J]. Applied Radiation and Isotopes,2020.
APA Li, Yi,Liu, Hongjun,Huang, Nan,Wang, Zhaolu,&Zhang, Chunmin.(2020).Analysis of corrected Cerenkov emission during electron radiotherapy by Monte Carlo method.Applied Radiation and Isotopes.
MLA Li, Yi,et al."Analysis of corrected Cerenkov emission during electron radiotherapy by Monte Carlo method".Applied Radiation and Isotopes (2020).
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