A large aperture versatile beamline working at wave length &gt; 100nm

ZHANG Guobin SHI Junyan HAN Zhengfu ZHOU Yingxue SHI Chaoshu ZHANG Xinyi

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A large aperture versatile beamline working at wave length > 100nm

更新时间：2021-03-12

- A large aperture versatile beamline working at wave length > 100nm
- NUCLEAR TECHNIQUES Issue 7, (2001)
- 作者机构：
  
  1. 中国科学技术大学国家同步辐射实验室,合肥,230026
  2. 中国科学技术大学国家同步
- 作者简介：
- 基金信息：
- DOI：
  CLC： TL817
- Published：01 July 2001
- 稿件说明：
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[1]张国斌,石军岩,韩正甫,周映雪,施朝淑,张新夷.工作波长大于100nm的高通量多用途光束线的设计[J].核技术,2001(07):553-556.

ZHANG Guobin SHI Junyan HAN Zhengfu ZHOU Yingxue SHI Chaoshu ZHANG Xinyi. A large aperture versatile beamline working at wave length > 100nm[J]. Nuclear techniques, 2001, (7): 553-556.
[1]张国斌,石军岩,韩正甫,周映雪,施朝淑,张新夷.工作波长大于100nm的高通量多用途光束线的设计[J].核技术,2001(07):553-556. DOI：

ZHANG Guobin SHI Junyan HAN Zhengfu ZHOU Yingxue SHI Chaoshu ZHANG Xinyi. A large aperture versatile beamline working at wave length > 100nm[J]. Nuclear techniques, 2001, (7): 553-556. DOI：

摘要

介绍国家同步辐射实验室光源二期工程圆二色与光声光谱光束线。该光束线采用一种改进的正入射型单色器，包括一块柱面前置镜、柱面光栅，无入射狭缝。前置镜接收４０ｍｒａｄ × ８ｍｒａｄ的同步辐射光，并将它在水平方向聚焦于样品处。柱面光栅（两块，覆盖１００－３００ｎｍ）完成同步光的单色化并将它在垂直方向聚焦于出射狭缝，出缝固定。该设计具有高通量（其光子通量为１０１２－１０１３ｐｈｏｔｏｎ／ｓ）、中等分辨率（０．３－５ｎｍ）、保持线偏振等优点。使用带ＬｉＦ或ＣａＦ２窗的超高真空阀门将光束线和实验站分隔，光束线工作在超高真空状态。

Abstract

The design of a new beamline was introduced

which will be used for Circular - Dichroism and Photoacoustic spectroscopy at National Synchrotron Radiation Laboratory. An improved normal incident monochromator was adopted in the design. The beamline includes a prefocusing cylindrical mirror and a cylindrical guting

but no entrance slit. The mirror will accept a very large proportion of the dipole radiation (8 mrad of vertical beam

.and 40 mrad of horizontally)

and focus the source sagittally on exit slit. The cylindrical grating will focus meridionally the source on the sample position

besides dispersion. The characteristics of such design are high flux (1012-1013 photons/s)

moderate resolution (0. 3-5nm)

reserving the linear polarization. A valve with LiF (or GaF2 ) window will be used to separate the beamline and experimental station. The beamline will be in ultra - high vacuum

but the experimental station will be N2 (or He) purged.

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Related Institution

National Synchrotron Radiation Laboratory.University of Science and Technology of China

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中国科学院高能物理研究所多学科中心

Institute of High Energy Physics,the Chinese Academy of Sciences,Beijing 100049,China) 2

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A large aperture versatile beamline working at wave length > 100nm

DOI：

摘要

Abstract

关键词

Keywords

references