• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Improved Damage Threshold for Optical Elements Placed at Minima (I.E., Shadow) of a Radiation Field
【24h】

Improved Damage Threshold for Optical Elements Placed at Minima (I.E., Shadow) of a Radiation Field

机译：改进放置在辐射场的最小值（I.E.，阴影）的光学元件的损伤阈值

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

It is shown that optical elements placed at interference minima of a radiation field will damage less. For example, when a 10 exp 3 A (or 3.15 x 10 exp 3 A) thick metallic foil is placed at the node of a standing wave pattern produced by 30 mu m wavelength radiation polarized parallel to the foil surface, the damage due to Joule heating is calculated to decrease by a factor 6.8 x 10 exp 3 (6.8 x 10 exp 4 ). When the angle of incidence is theta = 5.7 exp 0 and the wave is polarized parallel to the plane of incidence, the factor is 5.8 x 10 exp 2 (1.8 x 10 exp 3 ). Thus, higher fields are possible near mirrors, without damage. Applying this phenomenon to laser template accelerator design allows approx. = 1 GeV/m acceleration at any (including very high) particle energy. Experiments could determine how much of the calculated increase can be realized and where and if other damage mechanisms may take over. (ERA citation 08:047143)

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