A high energy resolution gamma-ray TES microcalorimeter with fast response time

被引：14
|
作者：
Oshima, T. [1 ]
Yamakawa, Y. [2 ]
Kurabayashi, H. [2 ]
Hoshino, A. [2 ]
Ishisaki, Y. [2 ]
Ohashi, T. [2 ]
Mitsuda, K. [3 ]
Tanaka, K. [4 ]
机构：
[1] Natl Astron Observ, Tokyo 1818588, Japan
[2] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan
[3] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan
[4] SII Nanotechnol, Matsudo, Chiba 2702222, Japan
来源：
JOURNAL OF LOW TEMPERATURE PHYSICS | 2008年 / 151卷 / 1-2期
关键词：
transition edge sensor; gamma-ray detectors;
D O I：
10.1007/s10909-007-9671-8
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on the development of the fast response gamma-ray TES microcalorimeter composed of a bulk Sn absorber coupled to a Ti/Au TES. In order to realize a TES microcalorimeter with a large absorber and a fast response time, besides taking saturation and linearity into account, study of the effect of thermal diffusion in the absorber on energy resolution is essential. Therefore, we performed 3 dimensional simulations using SPICE to calculate the effect of thermal diffusion in the absorber on energy resolution. By fabricating a device with the optimized heat capacity of the absorber and the thermal conductance between the absorber and the TES based on the simulation result, we have demonstrated an energy resolution of 38.4 +/- 0.9 eV at 60 keV with a time constant of 0.5 ms.
引用
收藏
页码：430 / 435
页数：6
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