用于ICF内爆诊断的质子成像磁透镜理论设计 |
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引用本文: | 滕建,谷渝秋,朱斌,谭放,田超,温贤伦,赵宗清,洪伟,曹磊峰.用于ICF内爆诊断的质子成像磁透镜理论设计[J].强激光与粒子束,2013,25(12):3123-3126. |
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作者姓名: | 滕建 谷渝秋 朱斌 谭放 田超 温贤伦 赵宗清 洪伟 曹磊峰 |
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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 |
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摘 要: | 根据加速器束流输运线设计的比例定律,设计了适用于ICF内爆DD反应产生的3.6 MeV准单能质子束成像的磁透镜系统。通过公式推导以及束流动力学追踪模拟,获得了类似于几何光学成像中的物像关系,并使用三维粒子追踪模拟验证了磁透镜成像的物像关系。物像关系的满足,使得可以对磁透镜系统进行封装,然后根据物像关系, 选择不同的物距以及相应的相距, 就可以对物体成不同大小的像。
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关 键 词: | 内爆 质子成像 磁透镜 束流追踪 物像关系 |
收稿时间: | 2013-07-22 |
Theory design of proton imaging magnetic lens for hot spot measurement in inertial confinement fusion |
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Institution: | 1.Science and Technology on Plasma Physics Laboratory,Research Center of Laser Fusion,CAEP,P.O.Box 919-988,Mianyang 621900,China |
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Abstract: | The magnetic lens used in high energy proton radiography system can alleviate the degradation of resolution which is induced by multi scattering of protons. A magnetic lens used for 3.6 MeV protons produced from DD fusion reactions in the implosion region is designed based on the scaling law of beamline design. A similar object-image relationship as in geometrical optical is deduced. 3D particle tracing simulation is also carried out to demonstrate the object-image relationship of the magnetic lens. |
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