10 MeV、＞80 Gy/s@1 m的光子FLASH放疗射线源

基金项目: 国家自然科学基金项目(11975218，12005211，11805192，11905210)；中国工程物理研究院创新发展基金项目(CX2019036, CX2019037)

>80 Gy/s@1 m FLASH photon source at 10 MeV

1.
Institute of Applied Electronics, CAEP, Mianyang 621900, China
2.
College of Nuclear Science and Technology, Harbin Engineering University, Harbin 150001, China
3.
School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
4.
Zhongjiu FLASH Radiotherapy Technology Co., Ltd. Mianyang 621900, China
5.
China Academy of Engineering Physics, Mianyang 621900, China

摘要:
报道了基于常温射频直线加速器建成的10 MeV光子FLASH放疗射线源样机，采用高平均电流电子束轰击高速旋转辐射转化靶，在距离靶点1 m远处的固体水模内，X射线剂量率达到80.5 Gy/s，达到未来临床实验与推广所需剂量率阈值。
- FLASH放疗 /
- 超高剂量率 /
- 医用直线加速器 /
- X射线源
Abstract:
A normal-conducting S-band linear accelerator based 10 MeV photon FLASH radiotherapy X-ray source prototype was built. By using high-energy, high average current electron beam hitting a rotating target, a high dose rate of 80.5 Gy/s at a source-axis distance of 1 m was successfully obtained, which reaches the threshold for future clinical trial.
- flash radiotherapy /
- ultrahigh dose rate /
- linac /
- X-ray source

图 1 FLASH放疗射线源系统初步实验结果

Figure 1. Preliminary experimental results of the FLASH X-ray source

下载: 全尺寸图片幻灯片

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