FLUKA在上海光源增强器束流损失监测系统模拟中的应用  

Application of FLUKA to simulate the beam loss monitoring system for the booster of the Shanghai synchrotron radiation facility

作　　者：任丽[1] 邱睿[1] 曾鸣[1] 李君利[1] 邵贝贝[1] 

机构地区：[1]清华大学工程物理系粒子技术与辐射成像教育部重点实验室高能辐射成像重点学科实验室,北京100084

出　　处：《清华大学学报（自然科学版）》2011年第5期641-645,共5页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(11075091)

摘　　要：上海光源(SSRF)是中国迄今为止最大的大科学装置,在科学界和工业界有着广泛的应用价值。上海光源增强器的束流损失监测系统,对于保障中国首台增强器的正常运行和机器研究都起到重要的作用。针对该束流损失监测系统设计中相关的问题,利用FLUKA程序,对不同能量的束损电子在真空室壁中的簇射过程进行了模拟,并比较了次级粒子在探测器内的能量沉积。结果表明:探测器中对能量沉积起主导作用的是簇射电子,设计方案是可行的。同时讨论了在不同能量束流电子损失下,探测器测量结果的一致性问题。The Shanghai Synchrotron Radiation Facility is by far the largest scientific facility in China,with wide applications in the scientific community and industry.The beam loss monitoring（BLM） system of the Shanghai Synchrotron Radiation Facility booster plays an important role in protecting normal operation of the first booster in China.Problems in the BLM system design were analyzed using the FLUKA code to simulate the beam electron shower with different kinetic energies in the vacuum chamber wall.The energy deposition of the secondary particles in the detector was compared to show that the shower electrons deposit the most energy in the detector,which can firms the design feasibility.The beam loss measurements for beam with different kinetic energies were also analyzed.

关 键 词：MONTE CARLO方法 FLUKA程序 束流损失监测 上海光源 

分 类 号：TL751[核科学技术—辐射防护及环境保护]