CSR上C~(6+)脉冲束激发Au靶的X射线辐射
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摘要
用电子冷却储存环提供的C6+脉冲高能离子束轰击Au靶,测量到Au的Lα和LβX射线辐射谱,分析结果表明,在高能离子束的轰击下,Au原子的Lα的X射线产生截面大于Lβ的,两个X射线产生截面随炮弹的动能增加而增加.本文分别用PWBA理论和ECPSSR理论计算了此实验条件下的X射线产生截面,结果比实验获得的结果大,初步分析了其中的原因.
As the C6+ion beam pulses,provided by the Heavy Ion Research Facility in Lanzhou-Cooling Storage Rings,impact on Au taget surface,the Lα-and Lβ-X spectra of Au atom are measured. Results show that the production cross section of Lαis larger than that of Lβ. The production cross sections increase with the kinetic energies of the projectiles. The PWBA and ECPSSR theoretical models are compared with the experimental resulms. The significant difference between experimental data and theoretical models was discussed.
As the C6+ion beam pulses,provided by the Heavy Ion Research Facility in Lanzhou-Cooling Storage Rings,impact on Au taget surface,the Lα-and Lβ-X spectra of Au atom are measured. Results show that the production cross section of Lαis larger than that of Lβ. The production cross sections increase with the kinetic energies of the projectiles. The PWBA and ECPSSR theoretical models are compared with the experimental resulms. The significant difference between experimental data and theoretical models was discussed.
引文
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[4]Wang W,Zhang J 2002 Acta Phys.Sin.51 0590(in Chinese)[王薇,张杰2002物理学报51 0509]
[5]Shen B F 2008 The Physics of Inertial Fusion(Beijing:Science Press)(in Chinese)[沈百飞2008惯性聚变物理(北京:科学出版社)]
[6]Yang Z R,Yuan P,Li Z W,Yang Z H 2012 High Power Laser and Particle Beams 24 1896(in Chinese)[杨兆锐,袁萍,李忠文,杨治虎2012强激光与粒子束24 1896]
[7]Hoffmann D H H,Brendel C,Genz H,Lo¨w W,Mu¨ller S,RichterA1979 Z.Phys.A 293 187
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[9]Zhang X A,Zhao Y T,Hoffmann D H H,Yang Z H,Chen X M,Xu Z F,Li F L,Xiao G Q 2011 Laser Part.Beams 29 265
[10]Andrews M C,McDaniel F D,Duggan J L 1987 Phys.Rev.A 36 3699
[11]Gregori G,Glenzer S H,Fournier K B 2008Phys.Rev.Lett.101045003
[12]Eugene J,McGuire 1972 Phys.Rev.A 5 1043
[13]Ma X,Zhang R T,Zhang S F,Zhu X L,Feng W T,Guo D L,Li B,Liu H P,Li C Y,Wang J G,Yan S C,Zhang P J,Wang Q 2011 Phys.Rev.A 83 052707
[14]Dong C Z,Fu Y B 2006 Acta Phys.Sin.55 0107(in Chinese)[董晨钟,符彦飙2006物理学报55 0107]
[15]Yang Z H,Du S B,Zeng X T,Chang H W,Zhang B L,Wang W,Yu D Y,Cai X H 2009 The Astronomical Journal 137 4020
[16]Czarnota M,Bana D,Braziewicz J,Semaniak J,Pajek M 2009 Phys.Rev.A 79 032710
[17]Lapicki Gregory,Ramana Murty G A V,Naga Raju G J,Reddy B S2004 Phys.Rev.A 70 062718
[18]Brandt W,Lapicki G 1981Phys.Rev.A 23 1717
[19]Wang X,Zhao Y T,Cheng R,Zhou X M 2012Phys.Lett.A 376 1197
[20]Xu Q M,Yang Z H,Du S B,Chang H W,Zhang Y P 2011 Acta Phys.Sin.60 093202(in Chinese)[徐秋梅,杨治虎,杜树斌,常宏伟,张艳萍2011物理学报60 093202]
[21]Zhang B L,Du S B,Chang H W,Xue Y L,Song Z Y,Zhu K X,Tian Y 2009 Acta Phys.Sin.58 6443(in Chinese)(张泊丽,杨治虎,杜树斌,常宏伟,薛迎丽,宋张勇,朱可欣,田野2009物理学报58 6443)
[22]Zhao H W,Zhang Z M,He W,Zhang X Z,Guo X H,Cao Y,Yuan P,Sun L T,Ma L,Song M T,Zhan W L,Wei B W,Xie D Z 2004 Rev.Sci.Instr.75 1410
[23]Tu X L,Xu H S,Wang M,Zhang Y H,Litvinov Yu A,Sun Y,Schatz H,Zhou X H,Yuan Y J,Xia J W,Audi G,Blaum K 2011Phys.Rev.Lett.106 112501
[24]Liu Z,Cipolla S J 1996 Comp.Phys.Comm.97 315
[25]Lapicki G 2002 Nucl.Instr.and Meth.in Phys.Res.B 189 8
[26]Li J M,Zhao Z X 1981 Acta Phys.Sin.30 105(in Chinese)(李家明,赵中新1981物理学报30 105)
[27]Gu J,Dong C Z,Ding X B,Xie L U 2006 J.At.Mol.Phys.23 0016(in Chinese)[顾娟,董晨钟,丁晓彬,颉录有2006原子与分子物理学报23 0016]