Development of superconducting tunnel junction detectors for high-resolution X-ray spectroscopy

被引：23
|
作者：
Angloher, G
Beckhoff, B
Bühler, M
von Feilitzsch, F
Hertrich, T
Hettl, P
Höhne, J
Huber, M
Jochum, J
Mössbauer, RL
Schnagl, J
Scholze, F
Ulm, G
机构：
[1] Tech Univ Munich, Phys Dept E15, D-85747 Garching, Germany
[2] Phys Tech Bundesanstalt, D-10587 Berlin, Germany
[3] CSP Cryogen Spectrometers GMBH, D-85737 Ismaning, Germany
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 444卷 / 1-2期
关键词：
D O I：
10.1016/S0168-9002(99)01362-5
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The energy resolution of aluminum superconducting tunnel junctions (Al-STJs) has been improved by the introduction of a metallic buffer layer underneath the junction. When irradiated by 5.9 keV X-rays, a resolution of 12 eV (FWHM) was achieved for a junction size of 100 x 100 mu m(2). A mobile refrigerator system allowed to characterize these devices at the PTB-beamlines of the electron storage rings Bessy I and Bessy II. They showed linear energy response in the range between 200 eV and 6.5 keV and a strong increase in reduced energy events if irradiated at X-ray energies below the Al absorption edge at 1.56 keV. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：214 / 219
页数：6
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