紧凑型医用回旋加速器内部激活分布的评估。
Evaluation of the distribution of activation inside a compact medical cyclotron.
作者信息
Fujibuchi Toshioh, Toyoda Takatoshi, Baba Shingo, Umezu Yoshiyuki, Komiya Isao, Sasaki Masayuki, Honda Hiroshi
机构信息
Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Japan.
Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, Japan.
出版信息
Appl Radiat Isot. 2017 Jun;124:27-31. doi: 10.1016/j.apradiso.2017.02.045. Epub 2017 Mar 9.
The distribution of activation inside a compact medical cyclotron was evaluated by measuring 1cm dose equivalent rates and γ-ray spectra. Analysis of the distribution of activation showed high activation at the deflector and the magnetic channel. Radionuclides Co, Co, Zn, and Mn were detected. Different radionuclides were generated from different components of the cyclotron, and low-activity radionuclides could be detected under low-background-radiation conditions.
通过测量1厘米剂量当量率和γ射线光谱，评估了紧凑型医用回旋加速器内部的活化分布。活化分布分析表明，偏转器和磁通道处活化程度较高。检测到了放射性核素钴、钴、锌和锰。回旋加速器的不同部件产生了不同的放射性核素，在低本底辐射条件下可以检测到低活度放射性核素。
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