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利用CR39上的径迹鉴别激光加速离子产物
引用本文:伍波,董克攻,吴玉迟,朱斌,赵宗清,谷渝秋,洪伟.利用CR39上的径迹鉴别激光加速离子产物[J].强激光与粒子束,2013,25(2):381-384.
作者姓名:伍波  董克攻  吴玉迟  朱斌  赵宗清  谷渝秋  洪伟
作者单位:1.中国工程物理研究院 激光聚变研究中心, 等离子体物理重点实验室, 四川 绵阳 621 900
基金项目:国家高技术发展计划项目;中国工程物理研究院基金项目(2011B0102021);国家自然科学基金项目(10905051)
摘    要:分别利用单能的质子束及碳离子束辐照CR39,并制定了规范的刻蚀条件及流程。通过对处理完成后的数据进行详细处理,得到了质子及碳离子的径迹直径-能量的响应曲线,可用于确定CR39上质子或碳离子的能量。以此为依据,得到了鉴别CR39上质子及碳离子的有效方法。在激光加速离子的实验中,通过测量CR39上的径迹大小及相对灰度,利用本文给出的标定数据,确认了质子径迹,得到了实验的质子能谱。

关 键 词:激光加速离子    鉴别离子    单能离子    CR39标定
收稿时间:2012/3/28

Identification of ion products produced from laser acceleration experiments using tracks on CR39
Wu Bo,Dong Kegong,Wu Yuchi,Zhu Bin,Zhao Zongqing,Gu Yuqiu,Hong Wei.Identification of ion products produced from laser acceleration experiments using tracks on CR39[J].High Power Laser and Particle Beams,2013,25(2):381-384.
Authors:Wu Bo  Dong Kegong  Wu Yuchi  Zhu Bin  Zhao Zongqing  Gu Yuqiu  Hong Wei
Institution:1.Science and Technology on Plasma Physics Laboratory,Research Center of Laser Fusion,CAEP,P.O.Box 919-986-6,Mianyang 621900,China
Abstract:In laser proton acceleration experiments, identifying different ions in the ion products is a basic and important issue. In this paper, we accomplished a calibration experiment, in which the CR39 detector is irradiated by monoenergetic proton and carbon ion beams. With standard etching conditions we developed, their track diameter vs energy response curves were obtained. These curves were further applied to determining the energy of ions and distinguishing protons from carbon ions in our laser proton acceleration experiment. In this experiment, the diameter and relative gray of ion tracks were measured, proton tracks were picked out and proton spectra were obtained finally.
Keywords:laser ion acceleration  ion identification  monoenergetic ions  calibration of CR39
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