Observation of very fast response signals from Pb absorber coupled transition edge sensor gamma-ray microcalorimeter

被引：0

作者：

Damayanthi, R. M. T. ^{[1
]}

Ohno, M. ^{[1
]}

Hatakeyama, S. ^{[1
]}

Takahashi, H. ^{[1
]}

Maehata, K. ^{[2
]}

Yasumune, T. ^{[2
]}

Iyomoto, N. ^{[2
]}

机构：

[1] Univ Tokyo, Grad Sch Engn, Dept Nucl Engn & Management, Bunkyo Ku, Tokyo 1138656, Japan

[2] Kyushu Univ, Dept Appl Quantum Phys & Nucl Engn, Nishi Ku, Fukuoka 8190395, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2012年 / 691卷

基金：

日本科学技术振兴机构; 日本学术振兴会;

关键词：

Gamma-ray spectroscopy; Pb absorber; Transition edge sensor; Epoxy-post; DETECTORS;

D O I：

10.1016/j.nima.2012.06.049

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We are developing a gamma-ray microcalorimeter for Positron Annihilation Spectroscopy. Our detector composed of a transition edge sensor (TES) thermometer and an epoxy coupled bulk Pb absorber has been reported an energy resolution of 4.7 key FWHM at 662 keV with a tens of milliseconds long response time. To enhance the detector properties, we designed a new attachment method in the focus of improving the thermal coupling between the absorber and the TES. In the new design, we created epoxy-posts both on the TES film and on the absorber, and then they were connected together using an epoxy-dot put on the epoxy-post on the absorber. Measured current signal of this epoxy-post TES gamma-ray detector showed an ultra fast response with 80 mu s fall time. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：30 / 33

页数：4

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