Energetic beams of negative and neutral hydrogen from intense laser plasma interaction
Energetic beams of negative and neutral hydrogen from intense laser plasma interaction
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DOI：
10.1063/1.4850456
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发表时间：
2013-12-16
影响因子：
4
通讯作者：
Ter-Avetisyan, S.
中科院分区：
文献类型：
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作者：
Abicht, F.;Prasad, R.;Ter-Avetisyan, S.
我们在高强度(5 × 10（19) W/cm(2)）激光等离子体相互作用实验中观察到高能负氢离子和快中性氢原子的强光束，并在数值计算中进行了量化。负离子和中性原子的产生归因于激光加速的正离子在与液滴云的碰撞中捕获和损失电子的过程。与电荷交换过程的数值模型的比较提供了在高能域中电子捕获截面的信息。(C) 2013 AIP出版有限责任公司
We present observations of intense beams of energetic negative hydrogen ions and fast neutral hydrogen atoms in intense (5 x 10(19) W/cm(2)) laser plasma interaction experiments, which were quantified in numerical calculations. Generation of negative ions and neutral atoms is ascribed to the processes of electron capture and loss by a laser accelerated positive ion in the collisions with a cloud of droplets. A comparison with a numerical model of charge exchange processes provides information on the cross section of the electron capture in the high energy domain. (C) 2013 AIP Publishing LLC.