强激光与粒子束, 2013, 25 (12): 3123, 网络出版: 2013-12-16
用于ICF内爆诊断的质子成像磁透镜理论设计
Theory design of proton imaging magnetic lens for hot spot measurement in inertial confinement fusion
内爆 质子成像 磁透镜 束流追踪 物像关系 implosion proton radiography magnetic lens beam tracing object-image relationship
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。
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.
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. Teng Jian, Gu Yuqiu, Zhu Bin, Tan Fang, Tian Chao, Wen Xianlun, Zhao Zongqing, Hong Wei, Cao Leifeng. Theory design of proton imaging magnetic lens for hot spot measurement in inertial confinement fusion[J]. High Power Laser and Particle Beams, 2013, 25(12): 3123.