报告详情
  1. 活动首页
  2. 报告清单
  3. 报告详情
Grazing-Incidence Multilayer Optics for High-Resolution X-Rays Imaging of Laser-Plasma Above 10 keV
编号：140 访问权限：仅限参会人 更新：2026-04-23 16:37:25 浏览：7次 口头报告

报告开始：暂无开始时间（Asia/Shanghai）

报告时间：暂无持续时间

所在会场：[暂无会议] [暂无会议段]

暂无文件

摘要
High-resolution hard X-ray imaging above 10 keV has become critical for observing spatial and temporal process of high energy density laser plasma. Grazing-incidence multilayer optics featuring high resolution and collection efficiency have emerged as the ideal approach for precision hard X-ray imaging. The spectral response of conventional periodic multilayers exhibits high sensitivity to multiple parameter variations, severely limiting their imaging brightness and uniformity in hard X-ray grazing-incidence imaging applications. This paper reports our recent progress in developing multilayer Kirkpatrick-Baez (KB) systems for diagnosing laser-produced plasmas in the >10 keV energy region, including: (1) For weak-source, small-field-of-view diagnostics above 10 keV, we developed a high-numerical-aperture Mo Kα-line (17.48 keV) periodic multilayer KB system based on a small-curvature-radius, short-working-distance configuration, achieving a four-fold improvement in effective collection efficiency compared to conventional designs and demonstrating 5 μm spatial resolution at the Xingguang-III facility; (2)To address high-energy imaging requirements on Mo Kα-line over hundreds of micrometers, we developed a depth-graded multilayer KB system that effectively enhances brightness uniformity across the field of view, achieving intensity response uniformity better than 10% within a 300 μm field of view; (3) Departing from the conventional KB design paradigm that prioritizes short working distances for higher collection efficiency, we developed a long-working-distance configuration that reduces the angular bandwidth requirements for the imaging field of view, significantly improving the reflectivity of depth-graded multilayer KB systems without compromising spatial resolution or geometric efficiency, thereby increasing effective collection efficiency by at least two-fold.
关键词
plasma diagnostics,grazing incidence,depth-graded multilayers,X-ray imaging,hard x-rays
报告人
Shengzhen Yi
Professor Tongji University

稿件作者
Shengzhen Yi Tongji University
秋实 黄 同济大学物理科学与工程学院精密光学系
哲 张 同济大学
润泽 齐 同济大学
众 张 同济大学
Zhanshan Wang Tongji University
发表评论
验证码 看不清楚，更换一张
全部评论
重要日期

  • 05月12日

    2026

    会议日期

  • 04月15日 2026

    初稿截稿日期

主办单位
等离子体物理全国重点实验室
厦门大学
联系方式
登录查看完整联系方式
历届会议
移动端
在手机上打开
小程序
打开微信小程序
客服
扫码或点此咨询