Accelerated helium-ion beams for radiotherapy and stereotactic radiosurgery.
Accelerated helium-ion beams for radiotherapy and stereotactic radiosurgery.
复制标题
用于放射治疗和立体定向放射外科的加速氦离子束。
DOI：
10.1118/1.596696
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发表时间：
1991
期刊：
影响因子：
3.8
通讯作者：
Renner,TR
中科院分区：
文献类型：
--
作者：
Ludewigt,BA;Chu,WT;Phillips,MH;Renner,TR
一条用于放射治疗和放射外科的新束线已经在贝瓦拉克建立起来，其中包括加速氦离子束流。新的治疗室配备了非常精确的患者定位器，以利用光离子束的卓越剂量定位特性。描述了光束扩展和整形系统，讨论了定位束流修正装置所涉及的权衡，并报告了产生的辐射场的物理特性。解释了采用变程移位器的轴向束流叠加对布拉格峰值的调制，并给出了包括束流监测和剂量测量在内的控制系统。
A new beam line for radiotherapy and radiosurgery with accelerated helium‐ion beams has been set up at the Bevalac. The new treatment room has been equipped with a very precise patient positioner in order to utilize the superior dose localization properties of light‐ion beams. The beam spreading and shaping system is described, the trade‐offs involved in positioning the beam modifying devices are discussed, and the physical properties of the generated radiation fields are reported. The Bragg peak modulation by axial beam stacking employing a variable range shifter is explained and the control system including beam monitoring and dosimetry is presented.