| Citation: | Yan Yonghong, Zhao Zongqing, Wu Yuchi, et al. 超短超强激光产生正电子的蒙特卡罗模拟[J]. High Power Laser and Particle Beams, 2012, 24: 1396-1400. doi: 10.3788/HPLPB20122406.1396
|
通过理论分析，建立了超短超强激光与固体靶作用产生正电子的蒙特卡罗模拟模型及Geant4模拟程序。模拟研究了靶材料、靶厚度及超热电子温度等对正电子产额的影响，结果表明：对铝、铜、锡、钽、金、铅6种靶材料，金靶的正电子产额最高，是优秀的正电子产生靶；不同超热电子温度下存在不同的最佳靶厚度，在最佳靶厚度以下，正电子产额随靶厚度增长而增大，靶厚度取3 mm较为合适；超热电子温度越高，正电子产额也越高，提高激光强度是增加正电子产额的有效途径。模拟研究给出了正电子角分布及其能谱，结果显示，正电子发射明显前倾，从大于90方向范围发射的正电子数量极少，且超热电子温度越高前倾特点越明显，能量呈类麦克斯韦分布，靶背法线方向出射的正电子的温度随超热电子温度升高而升高。
| [1] | Zhang Siqun, Wang Kunlun, Li Jing, Yang Liang, Huang Xianbin. Measurement of hard X-ray spectrum during wire array implosion on PTS[J]. High Power Laser and Particle Beams, 2018, 30(10): 105004. doi: 10.11884/HPLPB201830.180183 |
| [2] | Yang Qingguo, Huang Xianbin, Liu Dongbing, Mu Jian, Dan Jiakun, Feng Shuping, Xie Xudong, Deng Wu, Ye Yan, Tan Bozhong, Wei Bing, Zhang Siqun, Ren Xiaodong, Ouyang Kai, Li Yong, Ren Ji, Ding Yu, Tian Qing, Wang Liquan, Li Keyu, Jing Yukun, Wang Lingfang, Yu Bing, Wang Meng, Peng Qixian, Li Zeren. The first X-ray backlighting of Z-pinched aluminium liner experiment on PTS facility[J]. High Power Laser and Particle Beams, 2016, 28(04): 040101. doi: 10.11884/HPLPB201628.120101 |
| [3] | Duan Shuchao, Li Jing, Dan Jiakun, Xie Weiping, Zhou Shaotong, Zhang Siqun, Cai Hongchun, Ren Xiaodong, Xu Qiang, Wang Kunlun, Wang Ganghua. X-pinch 3D simulations with FOI-PERFECT[J]. High Power Laser and Particle Beams, 2015, 27(01): 010102. doi: 10.11884/HPLPB201527.010102 |
| [4] | Zhu Xinlei, Zou Xiaobing, Zhao Shen, Zhang Ran, Luo Haiyun, Shi Huantong, Wang Xinxin, Ye Shangling, Shi Zongqian. Evolution of mass density distribution of electrical explosion of metal wires[J]. High Power Laser and Particle Beams, 2014, 26(04): 045014. doi: 10.11884/HPLPB201426.045014 |
| [5] | Li Mo, Wang Liangping. Improvement on resistive bolometer for measuring total soft X-ray yield generated by Z-pinches[J]. High Power Laser and Particle Beams, 2013, 25(08): 2142-2146. doi: 10.3788/HPLPB20132508.2142 |
| [6] | Han Dan, ZHao Zongqing, SHan Lianqiang, Tan Fang. Monte Carlo simulation on X-ray backlighting imaging in fast ignition research[J]. High Power Laser and Particle Beams, 2012, 24(08): 1861-1866. doi: 10.3788/HPLPB20122408.1861 |
| [7] | Li Mo, Qiu Mengtong, Wu Jian, Wang Liangping, Wu Gang, Han Juanjuan, Guo Ning, Lei Tianshi. Plasma electron temperature diagnosis in aluminum wire array Z-pinches based on soft X-ray continuum[J]. High Power Laser and Particle Beams, 2012, 24(10): 2493-2496. doi: 10.3788/HPLPB20122410.2493 |
| [8] | Yang Qingguo, Li Zeren, Yang Libing, Chen Guanghua, Huang Xianbin, Cai Hongchun, Li Jing, Xiao Shali. K-shell emission monochromatic X-ray imaging of Z-pinch plasmas[J]. High Power Laser and Particle Beams, 2012, 24(05): 1081-1084. doi: 10.3788/HPLPB20122405.1081 |
| [9] | Duan Shuchao, Huang Xianbin, Yang Libing, Li Jing, Dan Jiakun, Zhang Zhengwei, Ren XiaoDong. Numerical analysis of X-ray radiation mechanism in wire array Z-pinch[J]. High Power Laser and Particle Beams, 2012, 24(04): 776-779. doi: 10.3788/HPLPB20122404.0776 |
| [10] | Zou Jian, Wang Chuan, Zheng Xia, Zhang Tianjue, Jiang Xingdong. Compact pulsed power generator for X-pinch experiments[J]. High Power Laser and Particle Beams, 2012, 24(03): 663-667. doi: 10.3788/HPLPB20122403.0663 |
| [11] | Zhu Xinlei, Zhang Ran, Luo Haiyun, Zhao Shen, Zou Xiaobing, Wang Xinxin. X-ray backlightings of single-wire and multi-wire Z-pinch[J]. High Power Laser and Particle Beams, 2012, 24(03): 539-543. doi: 10.3788/HPLPB20122403.0539 |
| [12] | dan jiakun, li jianfeng, yang libing, huang xianbin, li jun, ren xiaodong, zhang siqun, ouyang kai, duan shuchao. Experimental investigation on charge separation on metals irradiated by Z-pinch produced X-ray[J]. High Power Laser and Particle Beams, 2010, 22(03): 0- . |
| [13] | zhang ran, zhao tong, zou xiaobing, wang xinxin, zhao yongchao, du yanqiang, wang lianhui. X-ray backlighting using an X-pinch[J]. High Power Laser and Particle Beams, 2010, 22(04): 0- . |
| [14] | li linbo, lu xingqiang, li zhenghong, yang jianlun, xu rongkun, zhong yaohua, ning jiamin. Azimuthal X-ray power distribution in Z-pinch plasma implosions[J]. High Power Laser and Particle Beams, 2009, 21(10): 0- . |
| [15] | ye fan, li zhenghong, xue feibiao, qin yi, xu rongkun, jin yongjie. High spectral resolved X-ray dignosis for Z-pinch plasmas[J]. High Power Laser and Particle Beams, 2009, 21(02): 0- . |
| [16] | shi jun, xiao sha-li, wang hong-jian, huang xian-bin, yang li-bing, cai hong-chun. Diagnosis of X-ray spectrum of Z-pinch plasma with mica curved crystal spectrometer[J]. High Power Laser and Particle Beams, 2008, 20(06): 0- . |
| [17] | qiu ai-ci, sun feng-ju. Development of fast pulsed power driver for radiography and Z-pinch[J]. High Power Laser and Particle Beams, 2008, 20(12): 0- . |
| [18] | li lin-bo, yang jian-lun, zhong yao-hua, ning jia-min. 1-D axial X-ray power distribution of wire-array implosions[J]. High Power Laser and Particle Beams, 2007, 19(11): 0- . |
| [19] | cai hong-chun, chernenko a s, korolev v d, ustroev g i, ivanov m i. Dynamics of soft X-ray radiation spectra of imploding wire arrays on the S—300 pulsed power generator[J]. High Power Laser and Particle Beams, 2005, 17(06): 0- . |
| [20] | wang wen sheng, qiu ai ci, he duo hui, kuai bin, luo jian hui. Measurement of total soft Xray energy of high power Zpinch plasma with a Nifilm bolometer[J]. High Power Laser and Particle Beams, 2003, 15(02): 0- . |
Li ChaoLong, Shi Haiquan, Liu Zhengfang, et al. Simulation calculation of intense beam transporting in dipole magnet field[J]. High Power Laser and Particle Beams, 2012, 24: 2718-2722. doi: 10.3788/HPLPB20122411.2718
DownLoad: