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上海光源(SSRF)属第三代同步辐射专用装置,现正在建设之中.能量为3.5GeV、流强为300mA的电子经过SSRF储存环直线节时,不可避免的与真空室内的残余气体产生气体韧致辐射.因气体韧致辐射的前冲性比较强,且辐射功率比较集中.所以了解直线节所产生的气体韧致辐射功率、能谱及辐射功率分布是非常必要的.采用多粒子输运代码Fluka对SSRF直线节产生的气体韧致辐射功率及韧致辐射光子产额等进行计算.通过与经验公式的对比及其他文献数据的比较,论证了本计算模型的合理性.
Shanghai Light Source (SSRF) is the third generation of synchrotron radiation device, which is under construction.Energy is 3.5GeV, the flow of 300mA electrons through the SSRF storage ring linear section, inevitably with the vacuum chamber of the gas generated gas Bremsstrahlung radiation.Because gas forward breach sex bremsstrahlung is relatively strong, and the radiation power is relatively concentrated, so it is necessary to know the bremsstrahlung power, energy spectrum and radiant power distribution of the gas generated by the straight line section.Using multiparticle transport The code Fluka calculates the bremsstrahlung power of the gas and the bremsstrahlung photon yield produced by the SSRF straight line section. The comparison between the empirical formula and other literature data proves the rationality of this calculation model.