穿透型金刚石X射线位置灵敏探测器及其在同步辐射光束线上的应用

崔莹; 汪启胜; 黄胜; 张坤浩; 李冰; 徐琴; 王志军; Michal Pomorski; 徐慧超; 潘强岩; 何建华

doi:10.11889/j.0253-3219.2016.hjs.39.070101

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穿透型金刚石X射线位置灵敏探测器及其在同步辐射光束线上的应用

同步辐射技术及应用 | 更新时间：2021-05-24

- 穿透型金刚石X射线位置灵敏探测器及其在同步辐射光束线上的应用
  封面论文
- Transmission-mode diamond X-ray position sensitive detector and its applications in synchrotron radiation beamlines
- 核技术 2016年39卷第7期文章编号：070101
- 作者机构：
  
  1.中国科学院上海应用物理研究所嘉定园区上海 201800;
  2.Diamond Sensors Laboratory, CEA LIST, France
- 作者简介：
  
  [ "崔莹,女,1988年出生,2013年于东北大学获硕士学位,研究领域为光束线站自动化控制", "CUI Ying, female, born in 1988, graduated from Northeastern University with a master’s degree in 2013, focusing on beam line station automation control" ]
  何建华,E-mail:hejianhua@sinap.ac.cn HE Jianhua, E- mail: hejianhua@sinap.ac.cn
- 基金信息：
  
  中国科学院战略性先导科技专项（B类）(XDB08030101);国家重点基础研究发展规划（973计划）(2011CB911102);青年学者发展协作组(11505276)
- DOI：10.11889/j.0253-3219.2016.hjs.39.070101
  中图分类号： TL544
- 收稿日期：2016-03-17，
  
  修回日期：2016-05-11，
  
  纸质出版日期：2016-07
- 稿件说明：
移动端阅览
崔莹, 汪启胜, 黄胜, 等. 穿透型金刚石X射线位置灵敏探测器及其在同步辐射光束线上的应用[J]. 核技术, 2016,39(7):070101

Ying CUI, Qisheng WANG, Sheng HUANG, et al. Transmission-mode diamond X-ray position sensitive detector and its applications in synchrotron radiation beamlines[J]. Nuclear techniques, 2016, 39(7): 070101
崔莹, 汪启胜, 黄胜, 等. 穿透型金刚石X射线位置灵敏探测器及其在同步辐射光束线上的应用[J]. 核技术, 2016,39(7):070101 DOI： 10.11889/j.0253-3219.2016.hjs.39.070101.

Ying CUI, Qisheng WANG, Sheng HUANG, et al. Transmission-mode diamond X-ray position sensitive detector and its applications in synchrotron radiation beamlines[J]. Nuclear techniques, 2016, 39(7): 070101 DOI： 10.11889/j.0253-3219.2016.hjs.39.070101.

摘要

X射线位置灵敏探测器是同步辐射光束线上不可缺少的重要部件，由它所提供的光束位置和强度的实时数据是监测光束线运行状态的重要依据。为适应对高亮度同步辐射光束的测量需要，我们成功地研制了一套穿透型金刚石位置灵敏探测器，并在上海光源生物大分子结构晶体学束线（BL17U1）上对其性能进行了测定。测量数据表明，在整块探测器（2.5 mm×2.5 mm）上均具有极好的线性响应，探测器的信/噪比（S/N）

5×10

，位置分辨能力为

=（136±11） nm，光强强度的测量精度和线性度均

lt;0.1%，能满足第三代同步辐射和第四代光源（自由电子激光）束线上对光强、光斑位置及其运动轨迹的监测需求，是束线诊断的重要设备。

Abstract

Background

X-ray position sensitive detector is indispensable for beamlines at synchrotron radiation facilities. Synthetic single-crystal diamond position sensitive detectors have been developed to take advantage of next-generation synchrotron sources

which are trending toward use of high-flux beams and/or beams requiring enhanced stability and precise understanding of beam position and intensity from the front end of the beamline all the way to the sample in recent years.

Purpose

It is aimed to provide accurate real-time position and flux for high-flux X-ray beams. Methods: Based on the principle of potentiometers

the transmission-mode diamond X-ray position sensitive detector works as a "solid" ionization chamber. When the X-ray beam comes into the detector's sensitive region

electronic-holes occur due to the effect of ionization and the charges or the current pulses on the electrodes of the detector are given. According to the collected currents on the electrodes

the location of the incident X-ray can be determined by the ratio between the current difference of electrodes and the total current.

Results

A signal/noise ratio of (

S/N

)

5×10

and a position resolution of

=(136±11) nm for the synthetic single-crystal diamond position sensitive detector with an active area of 2.5 mm×2.5 mm

respectively

have been obtained. The measurement precisions for the X-ray beam intensity and position linearity are less than 0.1%.

Conclusion

We have demonstrated the feasibility of building a transmission-mode synthetic single-crystal diamond X-ray position sensitive detector

which could measure X-ray beam intensity and position in real time. Its performance was determined on the macromolecular crystallography beamline (BL17U1) at SSRF. Experimental data show that the diamond detector has good linear response and measurement precision of beam intensity within the whole active area.

关键词

Keywords

references

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