BFEL实现红外和X射线双波段运行的初步设计  

Design consideration of BFEL to realize infrared and soft X-ray double waveband operation

作　　者：王子华[1] 陆辉华[1] 戴建枰[1] 吴钢[1] 杨宇峰[1] 庄杰佳[1] 

机构地区：[1]中国科学院高能物理研究所,北京100039

出　　处：《强激光与粒子束》2008年第11期1913-1918,共6页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(60478037)

摘　　要：讨论了北京自由电子激光装置升级后实现红外和X射线双波段运行的主要物理和技术问题及其解决途径,并进行了初步设计。结果表明：红外自由电子激光器的波长调谐范围为4.9-16.8μm,输出宏脉冲能量可达到50 mJ;背散射X射线光源可以覆盖0.45-3.49 keV能区,输出宏脉冲谱亮度为3.0×10^20pho-tons/（s·mm^2·mrad2·0.1%BW）,扩大了红外自由电子激光的应用范围,以及用户对相应能区X射线的应用需求。Based on the BFEL improvement goals, this paper discusses the main physical and technical problems of dualband operation of BFEL facility in IR and X-ray ranges by Compton scattering. The preliminary ;design shows that the wavelength can change from 4.9 to 16.8μm. with macropulse energy of 50mJ. In addition, the photon energy of back-scattering X-ray source by intra-cavity Compton back-scattering can be 0. 475-3.49 keV, the maeropulse spectral brightness can reach 3.0-1020 photons/（s·mm^2·mrad2·0.1%BW）, thus broaden the application areas of the BFEL facility into X-ray range.

关 键 词：康普顿背散射 双波段 红外自由电子激光 X射线 

分 类 号：TN248[电子电信—物理电子学]