摘要
本文介绍了利用康普顿背散射 (BCS)产生γ射线的原理 ,并以SSRF储存环电子运行参数为例 ,给出了利用BCS方法产生MeV量级γ射线束的计算结果 ,预期该光子束具有高强度、高极化度、单色性、方向性好等优点。同时对国际上已运行和拟建的高能和低能γ束线站的装置和性能作了简要介绍 ,并分别探讨了高能和低能准单色极化γ射线在核物理和核天体物理研究中广泛的应用前景。文中对基于正对以及离轴几何条件下 ,采用直线加速器加速的电子同短脉冲强激光发生Compton/Thomson散射的激光同步辐射源作了初步探讨 ,这一方法为我们构建超短脉冲的高亮度、准单色、可调谐的X γ射线源开辟了一条新途径。
In this paper, we present the outline of Compton back_scatering (BCS) theory and numerical results for the properties of BCS γ_ray ranging 1～25MeV based on major parameters of the SSRF storage ring. It is predicted that the high intense quasi_monochromatic BCS γ_ray with high linear or circular polarization will be produced. We briefly introduce the facilities and properties of present and proposed γ_ray beam line in the world. They can be widely applied to fundamental research fields of nuclear physics, nuclear astrophysics and related applications. We also present some preliminary results of a Laser Synchrotron Source (LSS) based on the Compton/Thomson scattering between the electron beam in linear accelerator and high_power laser beams in head_on and off_axis geometry. This approach opens a new route toward ultra_short, high_brightness, quasi_monochromatic tunable X_ray/ γ_ray source.
出处
《物理学进展》
CSCD
北大核心
2003年第4期389-422,共34页
Progress In Physics
基金
中国科学院"九.五"重点项目资助课题
