Gamma-ray spectrometers using superconducting transition edge sensors with external active feedback bias

被引：4

作者：

Chow, DT ^{[1
]}

van den Berg, ML

Loshak, A

Frank, M

Barbee, TW

Labov, SE

机构：

[1] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] Univ Calif Davis, Dept Appl Sci, Livermore, CA 94550 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2001年 / 11卷 / 01期

关键词：

cryogenic detectors; microcalorimeters; transition-edge sensors; bulk absorbers; active feedback bias;

D O I：

10.1109/77.919452

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We are developing x-ray and gamma-ray spectrometers with high absorption efficiency and high energy-resolution for x-ray and gamma-ray spectroscopy. They are microcalorimeters consisting of a bulk Sn absorber coupled to a Mo/Cu multilayer superconducting transition edge sensor (TES), We have operated these microcalorimeters with an external active feedback bias to linearize the detector response, improve the count rate performance, and extend the detection energy range, We measured an energy resolution of 120 eV FWHM for 60 keV incident gamma-rays with no degradation of resolution from active bias, We present x-ray and gamma-ray results and operation of this detector design in both bias modes.

引用

页码：743 / 746

页数：4

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