Energy enhancement of quasi-monoenergetic proton bunches using a slice-cone target
文献类型：期刊论文
| 作者 | Zheng, J ; Sheng, ZM ; Liu, JL ; Zhou, WM ; Xu, H ; Zhang, J |
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2011 |
| 卷号 | 18期号:11 |
| 关键词 | LASER-SOLID INTERACTIONS ACCELERATION PLASMA ION GENERATION IGNITION FUSION BEAMS |
| ISSN号 | 1070-664X |
| 通讯作者 | Zheng, J: Shanghai Jiao Tong Univ, Key Lab Laser Plasmas, Minist Educ, Shanghai 200240, Peoples R China. |
| 中文摘要 | A slice-cone target is proposed for the generation of quasi-monoenergetic proton bunches. In this new target structure, two symmetrical solid slices are adjoined obliquely to the tip of a hollow cone. Two-dimensional particle-in-cell simulations show that a large number of hot electrons are pulled out from the solid slices and accelerated forward by direct laser acceleration. Compared with the hollow cone target, a stronger electrostatic field at the rear surface of the slice-cone tip is set up by the hot electrons from the cone and the slices. As a result, the energy of the quasi-monoenergetic proton bunch produced through the target-normal sheath acceleration mechanism can be improved by 75%. It shows that the proton energy scales proportional to the square root of the laser intensity. For the incident laser with the focused intensity about 5 x 10(20) W/cm(2), one can obtain proton bunches with central energy 165 MeV and energy spread 13%. (C) 2011 American Institute of Physics. [doi:10.1063/1.3660679] |
| 收录类别 | SCI |
| 资助信息 | Natural Science Foundation of China [10905039, 10734130, 10935002, 11175165]; National Basic Research Program of China [2007CB815105, 2009GB105002]; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry; Research Fund for the Doctoral Program of Higher Education of China [20090073120076] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/37303]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zheng, J,Sheng, ZM,Liu, JL,et al. Energy enhancement of quasi-monoenergetic proton bunches using a slice-cone target[J]. PHYSICS OF PLASMAS,2011,18(11). |
| APA | Zheng, J,Sheng, ZM,Liu, JL,Zhou, WM,Xu, H,&Zhang, J.(2011).Energy enhancement of quasi-monoenergetic proton bunches using a slice-cone target.PHYSICS OF PLASMAS,18(11). |
| MLA | Zheng, J,et al."Energy enhancement of quasi-monoenergetic proton bunches using a slice-cone target".PHYSICS OF PLASMAS 18.11(2011). |
入库方式： OAI收割
来源：物理研究所
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