Proton beam range verification algorithm for pixelated prompt gamma-ray imaging detector
10.3969/j.issn.1005-202X.2025.03.001
- VernacularTitle:用于像素化瞬发伽马探测器的质子射程验证算法
- Author:
Liwang YANG
1
;
Haifeng OU
;
Jinlong WANG
;
Xiaoguang WU
;
Ziyang HE
;
Jian'an ZOU
;
Yun ZHENG
;
Congbo LI
;
Shaoxiong GUAN
;
Jing SHI
;
Jinze LI
;
Yunqiu LI
;
Rui HONG
;
Hao'en CHANG
;
Mengting WANG
;
Kaijie WEI
Author Information
1. 河南工业大学物理学院,河南 郑州 450001
- Publication Type:Journal Article
- Keywords:
prompt gamma;
proton therapy;
range verification;
pixelated
- From:
Chinese Journal of Medical Physics
2025;42(3):281-287
- CountryChina
- Language:Chinese
-
Abstract:
In proton therapy,prompt gamma-ray imaging is considered as one of the most promising methods for assessing proton beam range.Prompt gamma-ray imaging detector evaluates the proton beam range based on the prompt gamma-ray distribution obtained by the prompt gamma-ray imaging system,which enables high-precision measurement of the proton beam range.Herein a proton beam range verification algorithm is designed for the newly developed prototype of the range verification detector(pixelated prompt gamma-ray imaging detector),which verifies the range estimation accuracy of the prototype for different phantoms and different energies of homogeneous media through Monte Carlo simulation.The results show that the accuracy of the proton beam range verification algorithm is within 0.5 mm of the safety margin error of the Bragg peak,and the measurement accuracy is significantly improved with the increase of the number of protons,indicating that the prototype algorithm is feasible for proton beam range verification.
