Position-sensitive superconductor detectors

被引:2
作者
Kurakado, M. [1 ]
Taniguchi, K. [1 ]
机构
[1] Techno X Co Ltd, Higashiyodogawa Ku, 5-18-20 Higashinakajima, Osaka 5330033, Japan
来源
JOURNAL OF INSTRUMENTATION | 2016年 / 11卷
关键词
Superconductive detectors (bolometers tunnel junctions etc); X-ray detectors; Solid state detectors; SERIES-JUNCTION DETECTORS; X-RAY-DETECTORS; TUNNEL-JUNCTIONS; ALPHA-PARTICLES; RESOLUTION;
D O I
10.1088/1748-0221/11/12/C12071
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Superconducting tunnel junction (STJ) detectors and superconducting transition-edge sensors (TESs) are representative superconductor detectors having energy resolutions much higher than those of semiconductor detectors. STJ detectors are thin, thereby making it suitable for detecting low-energy X rays. The signals of STJ detectors are more than 100 times faster than those of TESs. By contrast, TESs are microcalorimeters that measure the radiation energy from the change in the temperature. Therefore, signals are slow and their time constants are typically several hundreds of mu s. However, TESs possess excellent energy resolutions. For example, TESs have a resolution of 1.6 eV for 5.9-keV X rays. An array of STJs or TESs can be used as a pixel detector. Superconducting series-junction detectors (SSJDs) comprise multiple STJs and a single-crystal substrate that acts as a radiation absorber. SSJDs are also position sensitive, and their energy resolutions are higher than those of semiconductor detectors. In this paper, we give an overview of position-sensitive superconductor detectors.
引用
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页数:12
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