| 超热电子能量分布的实验和模拟研究 |
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| 引用本文： | 蔡达锋,王剑,谷渝秋,郑志坚,周维民,焦春晔,温天舒,淳于书泰.超热电子能量分布的实验和模拟研究[J].强激光与粒子束,2011,23(7). |
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| 作者姓名： | 蔡达锋 王剑 谷渝秋 郑志坚 周维民 焦春晔 温天舒 淳于书泰 |
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| 作者单位： | 1. 内江师范学院 物理与电子信息工程学院， 四川 内江 641112； 2. 中国工程物理研究院 激光聚变研究中心， 四川 绵阳 621900 |
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| 基金项目： | 国家自然科学基金，四川省科技厅科研项目 |
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| 摘 要： | 采用LiF探测器堆测量了飞秒激光-薄膜靶相互作用中超热电子产生的剂量。根据电子在LiF中的质量碰撞阻止本领，理论上计算出了超热电子的能量分布；在相同实验条件下，数值模拟结果与实验测量结果较好地一致，证明了实验测量的可靠性。理论分析显示，共振吸收是激光-薄膜靶相互作用中电子加速的主要机制。
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| 关 键 词： | 超热电子 能量分布 实验 模拟 |
| 收稿时间： | 1900-01-01; |
Experimental and simulative study on energy distribution of hot electrons |
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| Cai Dafeng,Wang Jian,Gu Yuqiu,Zheng Zhijian,Zhou Weimin,Jiao Chunye,Wen Tianshu,Chunyu Shutai.Experimental and simulative study on energy distribution of hot electrons[J].High Power Laser and Particle Beams,2011,23(7). |
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| Authors: | Cai Dafeng Wang Jian Gu Yuqiu Zheng Zhijian Zhou Weimin Jiao Chunye Wen Tianshu Chunyu Shutai |
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| Institution: | (1. Department of Physics and Electronic Information Engineering, Neijiang Normal University, Neijiang 641112, China; 2. Research Center of Laser Fusion, CAEP, P. O. Box 919-986, Mianyang 621900, China) |
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| Abstract: | The dose produced by the hot electrons from the laser-foil target interaction has been measured by using a LiF thermoluminescence dosimeters (TLDs) stack. The hot electron energy distribution has been obtained from the mass stopping power of the electron in the LiF TLDs. The hot electron energy distribution of the PIC simulation is more consistent with the result from the experiment. The theoretical analysis proves that the resonance absorption is the primary mechanism of the electron acceleration. |
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| Keywords: | energy distribution experiment simulation |
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