Preliminary study on the parameter required for magnetic scanning   irradiation in heavy ion radiotherapy

WEN Xiaoqiong  LI Wenjian  WEI Zenquan

doi:null

您当前的位置：

首页 >

文章列表页 >

Preliminary study on the parameter required for magnetic scanning irradiation in heavy ion radiotherapy

更新时间：2021-03-12

- Preliminary study on the parameter required for magnetic scanning irradiation in heavy ion radiotherapy
- NUCLEAR TECHNIQUES Issue 5, (2002)
- 作者机构：
  
  1. 中国科学院近代物理研究所
  2. 中国科学院近代物理研究所,兰州,730000
- 作者简介：
- 基金信息：
  
  中国科学院留学经费择优支持基金 (HG0 0 0 6 0 2 );教育部留学归国人员科研启动基金资助
- DOI：
  CLC： R73-36
- Published：01 May 2002
- 稿件说明：
移动端阅览
[1]温小琼,李文建,卫增泉.重离子治癌中磁扫描照射野形成法的初步参数要求[J].核技术,2002(05):331-334.

WEN Xiaoqiong LI Wenjian WEI Zenquan. Preliminary study on the parameter required for magnetic scanning irradiation in heavy ion radiotherapy[J]. Nuclear techniques, 2002, (5): 331-334.
[1]温小琼,李文建,卫增泉.重离子治癌中磁扫描照射野形成法的初步参数要求[J].核技术,2002(05):331-334. DOI：

WEN Xiaoqiong LI Wenjian WEI Zenquan. Preliminary study on the parameter required for magnetic scanning irradiation in heavy ion radiotherapy[J]. Nuclear techniques, 2002, (5): 331-334. DOI：

摘要

通过计算机模拟确定了磁扫描形成的照射野均匀度与束斑大小及扫描步长的关系 ;根据重离子治癌的逐片照射思想得到了束流强度计算式和照射时间关系式

并利用它们分别计算出了磁扫描的束流强度、最大扫描速度、最小束斑停留时间等技术参数。结果表明 :当扫描步长小于等于束斑半宽度时

磁扫描形成的照射野均匀度可达到好于 95 %的要求 ;磁扫描的适当束流强度为 0 .4 8nA

最大扫描速度为 1 0 0 0cm/s

最小束斑停留时间为 0 .2 4ms。

Abstract

The relationship between the homogeneity of irradiation field created by magnetic scan in heavy-ion radiotherapy and the size and scanning step of beam spot was investigated by computer simulation. Two formulae for the beam intensity and irradiation time calculation respectively were derived from the slice-by-slice idea of heavy-ion radiotherapy. The simulation result shows that the homogeneity better than 95% can be achieved when the scanning step is smaller than the half width of beam spot. The suitable beam intensity

the maximum scanning speed and the minimum spot stay time were obtained as 0.48nA

1000cm/s

0.24ms respectively.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

No data

Related Author

No data

Related Institution

No data

AI问答

Address：2019 Jialuo Road, Jiading, Shanghai, China Postal code：201800
Tel：021-39194977 Email：LHB@sinap.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 沪ICP备05005479号-1 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：881003 Visits Today：530

⁰