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Application of a two-dimensional position-sensitive photon detector to time- and space-resolved laser-induced-fluorescence technique

二维位置敏感光子探测器在时间和空间分辨激光诱导荧光技术中的应用

基本信息

批准号：
11555022
负责人：
MIZOGAWA Tatsumi
金额：
$ 5.25万
依托单位：
Wakayama National College of Technology (2000-2001)Nagaoka National College of Technology (1999)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555022/
关键词：
Photon detector Position-sensitive two-dimensional visible vacuum-ultraviolet laser-induced-fluorescence 真空紫外

项目摘要

First we developed a two-dimensional position-sensitive photon counter based on MBWC technique using Csl photo-cathode, which is sensitive to vacuum ultraviolet rays, and studied its properties. Obtained position resolution is -120μm (FWHM) , and practical long wavelength limit is -250 nm. Position dependence of sensitivity-wavelength curve was not observed over the -14mm-diameter effective area excluding the fringe area of which width is 3mm. Second, we aimed at developing another counter using CsSb photo-cathode which is sensitive to photons of visible region. Unfortunately lifetime of our photo-cathode was not long enough, ( 〜a month) and the step of studying overall properties as a photon counter has not been reached. However, introduction of suitable "getter" into a detector chamber is considered to resolve this difficulty, and the improvement along this line is in progress. Finally, The preparation of light source for laser-induced-fluorescence technique has been completed. After improvement of the stability of the visible photon counter, combining the photon source and the detector, new LIF techniques, e.g. time-resolved two-dimensional LIF, will be studied.

首先，我们利用对真空紫外光敏感的Csl光电阴极，研制了基于MBWC技术的二维位置灵敏光子计数器，并对其特性进行了研究。获得的位置分辨率为-120 UNFm（FWHM），实际长波长极限为-250 nm。在直径为-14mm的有效区（不包括宽度为3 mm的边缘区）内，未观察到灵敏度-波长曲线的位置依赖性。第二，我们的目标是开发另一种计数器，使用CsSb光电阴极，这是敏感的可见光区的光子。遗憾的是，我们的光电阴极寿命不够长（大约一个月），并且还没有达到研究光子计数器的整体性能的步骤。然而，引入合适的“吸气剂”到检测器室被认为是解决这个困难，并且沿着这条线的改进沿着在进行中。最后，完成了激光诱导荧光技术光源的制备。在提高可见光光子计数器的稳定性后，将光子源和探测器结合起来，研究新的LIF技术，例如时间分辨二维LIF。