Effect of self-generated magnetic fields on fast-electron beam divergence in solid targets
文献类型：期刊论文
| 作者 | Yuan, X. H.1,6; Robinson, A. P. L.2; Quinn, M. N.1; Carroll, D. C.1; Borghesi, M.3; Clarke, R. J.2; Evans, R. G.2,4; Fuchs, J.5; Gallegos, P.1,2; Lancia, L.5 |
| 刊名 | new journal of physics
 |
| 出版日期 | 2010-06-11 |
| 卷号 | 12期号:0页码:063018-1-063018-10 |
| ISSN号 | 1367-2630 |
| 英文摘要 | the collimating effect of self-generated magnetic fields on fast-electron transport in solid aluminium targets irradiated by ultra-intense, picosecond laser pulses is investigated in this study. as the target thickness is varied in the range of 25 mu m to 1.4 mm, the maximum energies of protons accelerated from the rear surface are measured to infer changes in the fast-electron density and therefore the divergence of the fast-electron beam transported through the target. purely ballistic spreading of the fast-electrons would result in a much faster decrease in the maximum proton energy with increasing target thickness than that measured. this implies that some degree of 'global' magnetic pinching of the fast-electrons occurs, particularly for thick (>400 mu m) targets. numerical simulations of electron transport are in good agreement with the experimental data and show that the pinching effect of the magnetic field in thin targets is significantly reduced due to disruption of the field growth by refluxing fast-electrons. |
| WOS标题词 | science & technology ; physical sciences |
| 学科主题 | 数理科学和化学 |
| 类目[WOS] | physics, multidisciplinary |
| 研究领域[WOS] | physics |
| 关键词[WOS] | proton acceleration ; driven ; transport ; ignition ; pulse ; rear |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000278635000004 |
| 公开日期 | 2011-07-08 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/8967]  |
| 专题 | 西安光学精密机械研究所_研究生部 |
| 作者单位 | 1.Univ Strathclyde, SUPA Dept Phys, Glasgow G4 0NG, Lanark, Scotland 2.STFC Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England 3.Queens Univ Belfast, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland 4.Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England 5.Ecole Polytech, Lab Utilisat Lasers Intenses, F-91128 Palaiseau, France 6.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, X. H.,Robinson, A. P. L.,Quinn, M. N.,et al. Effect of self-generated magnetic fields on fast-electron beam divergence in solid targets[J]. new journal of physics,2010,12(0):063018-1-063018-10. |
| APA | Yuan, X. H..,Robinson, A. P. L..,Quinn, M. N..,Carroll, D. C..,Borghesi, M..,...&McKenna, P..(2010).Effect of self-generated magnetic fields on fast-electron beam divergence in solid targets.new journal of physics,12(0),063018-1-063018-10. |
| MLA | Yuan, X. H.,et al."Effect of self-generated magnetic fields on fast-electron beam divergence in solid targets".new journal of physics 12.0(2010):063018-1-063018-10. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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