激光同步辐射源的康普顿散射理论分析.rar

摘  要：激光同步辐射源能产生准单色、能量可调的超短脉冲X射线，它将在医学、生物、材料等很多科学领域得到广泛的应用。

　　　本文对激光同步辐射源的特性和国内外一些激光同步辐射源装置的实验参数进行了分析，主要内容分为以下几个部分：

1.首先用康普顿散射理论分析了激光同步辐射源的原理，讨论了激光同步辐射源光子的最大能量，散射截面和散射能谱。

2.分析了激光同步辐射源的特性，包括考虑和不考虑激光束和电子束的横向分布对散射光子产额的影响时散射光子通量，实验装置的接收角、电子束能散、角发散、激光束角发散和带宽对散射X光单色性的影响以及X射线的时间结构。在这里考虑了电子束和激光束的发散度的影响，这是大部分文献没有考虑的。

3、上海应用物理研究所正在研制ps、fs直线加速器，考虑可以利用它开展激光同步辐射源研究，分析了可能达到的性能。国内外的多家科研机构也在这一领域里开展了理论和实验研究，用我们得到的关于激光同步辐射源的特性理论分析了这些实验的性能，提出了优化的条件。

关键词：激光同步辐射源   散射截面    散射能谱   角发散

Abstract：The laser synchrotron source (LSS) configuration was proposed to be used as an effective way of producing tunable, short pulse, near-monochromatic X-ray source for many medical and material science applications. Experiments have been proposed to study and implement similar configuration at many institutions.

　　Theory and properties of laser synchrotron source and experimental parameters of some domestic and aboard laser synchrotron source facilities have been investigated in this paper. It includes the following sapects:

1.first compton scattering theory for analyzing LSS was reviewed, which is including the energy of scattering photons、scattering section、scattering energy spectrum and the relations between them .

2.main properties of LSS, including X-ray flux,、time structure of pulse and energy spectrum are calculated and discussed. The impact of transverse distribution of electron and laser beams in the interaction area is took into account.

3.Based on the facilities of ps 、fs electron linacs and ns、fs high-power lasers which are now building in shanghai institute of applied physics, we calculate the based properties of these LSS facilities. properties of other domestic and aboard LSS falities are also calculated and we get the sililar compared with the given results. We also simply analyse the optimum experimental conditions.

Key word: laser synchrotron source；      scattering section； Scattering energy spectrum；    angle spread