| 回旋加速器束测探头感生放射性实验研究 |
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| 引用本文： | 王韬,庞建,赵良超,何小中,荆晓兵,张开志,章林文.回旋加速器束测探头感生放射性实验研究[J].强激光与粒子束,2013,25(7):1779-1782. |
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| 作者姓名： | 王韬 庞建 赵良超 何小中 荆晓兵 张开志 章林文 |
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| 作者单位： | 1.中国工程物理研究院 流体物理研究所, 四川 绵阳 621 900 |
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| 摘 要： | 基于束流沉积法测量回旋加速器内部束流参数将在束测探头上产生感生放射性污染，从而对加速器调束工作人员带来不必要的辐射危害。采用AGM-6型监测仪对探头感生放射性进行在线测量，通过测量不同半径处探头受辐射后的空气比释动能率，间接反映探头感生放射性的强弱和危害。研究结果表明，在束流调试实验中，应尽量降低馈入高频的占空比；探头测量后冷却2~3 h取出，则不需要考虑测量探头辐照后的残留感生放射性的危害。
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| 关 键 词： | 回旋加速器 感生放射性 γ监测仪 空气比释动能率 辐射危害 |
| 收稿时间： | 2012-10-22; |
Experimental investigation on induced radioactivity in beam probe for compact cyclotron |
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| Wang Tao,Pang Jian,Zhao Liangchao,He Xiaozhong,Jing Xiaobing,Zhang Kaizhi,Zhang Linwen.Experimental investigation on induced radioactivity in beam probe for compact cyclotron[J].High Power Laser and Particle Beams,2013,25(7):1779-1782. |
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| Authors: | Wang Tao Pang Jian Zhao Liangchao He Xiaozhong Jing Xiaobing Zhang Kaizhi Zhang Linwen |
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| Affiliation: | 1.Institute of Fluid Physics,CAEP,P.O.Box 919-106,Mianyang 621900,China |
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| Abstract: | When the conventional beam deposition method is applied to the internal beam parameters measurement in cyclotron, the induced radioactive contamination generated in the measuring probe will lead to unnecessary radiation hazards to the accelerator beam tuning staff. The AGM-6 gamma monitor was applied to on-line measurement of the induced radioactivity. By measuring the air kerma rate of the probe irradiated at different radii, the strength and the hazards of induced radioactivity were reflected indirectly. The results show that the high-frequency duty cycle should be reduced, and the probe should be cooled for 2-3 h before being removed in the beam tuning experiment. Otherwise, one should consider hazards of the residual induced radioactivity after the measuring probe being irradiated. |
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| Keywords: | induced radioactivity gamma monitor air kerma rate radiation hazard |
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