...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physics of plasmas >Microjet formation and hard x-ray production from a liquid metal target irradiated by intense femtosecond laser pulses
【24h】

Microjet formation and hard x-ray production from a liquid metal target irradiated by intense femtosecond laser pulses

机译：飞秒激光脉冲对液态金属靶的微射流形成和硬X射线产生

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

By using a liquid metal as a target one may significantly enhance the yield of hard x-rays with a sequence of two intense femtosecond laser pulses. The influence of the time delay between the two pulses is studied experimentally and interpreted with numerical simulations. It was suggested that the first arbitrary weak pulse produces microjets from the target surface, while the second intense pulse provides an efficient electron heating and acceleration along the jet surface. These energetic electrons are the source of x-ray emission while striking the target surface. The microjet formation is explained based on the results given by both optical diagnostics and hydrodynamic modeling by a collision of shocks originated from two distinct zones of laser energy deposition. (C) 2014 AIP Publishing LLC.
机译：通过使用液态金属作为目标，可以用两个强烈的飞秒激光脉冲序列显着提高硬X射线的产量。实验研究了两个脉冲之间的时间延迟的影响，并通过数值模拟对其进行了解释。有人提出，第一个任意的弱脉冲从目标表面产生微射流，而第二个强脉冲在射流表面上提供有效的电子加热和加速。这些高能电子是撞击目标表面时X射线发射的来源。基于光学诊断和流体动力学建模所给出的结果来解释微射流的形成，该结果是由来自激光能量沉积的两个不同区域的冲击碰撞引起的。 （C）2014 AIP Publishing LLC。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号