ENERGY-RESOLVING SUPERCONDUCTING X-RAY-DETECTORS WITH CHARGE AMPLIFICATION DUE TO MULTIPLE QUASI-PARTICLE TUNNELING

被引：95

作者：

MEARS, CA ^{[1
]}

LABOV, SE ^{[1
]}

BARFKNECHT, AT ^{[1
]}

机构：

[1] CONDUCTUS INC,SUNNYVALE,CA 94086

来源：

APPLIED PHYSICS LETTERS | 1993年 / 63卷 / 21期

关键词：

D O I：

10.1063/1.110286

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Superconducting tunnel junctions coupled to superconducting absorbers may be used as high-resolution, high-efficiency x-ray spectrometers. We have tested devices with niobium x-ray absorbing layers coupled to aluminum layers that serve as quasiparticle traps. The energy resolution at 6 keV was 49 eV full width at half-maximum. We estimate that each quasiparticle tunnels an average of 19 times before recombining, increasing the total charge transferred and therefore decreasing the effects of electronic noise.

引用

页码：2961 / 2963

页数：3

共 17 条

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VANVECHTEN, D
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LOVELLETTE, MN
VANVECHTEN, D
IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (02) : 2673 - 2676
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Girolami, M.
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PROCEEDINGS OF THE 13TH ITALIAN CONFERENCE ON SENSORS AND MICROSYSTEMS, 2009, : 307 - 312
[5] SUPERCONDUCTING TUNNELING JUNCTIONS AS X-RAY-DETECTORS AND THEIR POSSIBLE APPLICATIONS IN ASTROPHYSICS
TWERENBOLD, D
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1988, 273 (2-3): : 575 - 582
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TWERENBOLD, D
EUROPHYSICS LETTERS, 1986, 1 (05): : 209 - 214
[7] A tabletop clinical x-ray CT scanner with energy-resolving photon counting detectors
Cammin, J.
Srivastava, S.
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Taguchi, K.
MEDICAL IMAGING 2011: PHYSICS OF MEDICAL IMAGING, 2011, 7961
[8] Spectral Signatures of X-ray Scatter Using Energy-Resolving Photon-Counting Detectors
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[9] SUPERCONDUCTING SN/SN-OXIDE/SN TUNNELING JUNCTIONS AS HIGH-RESOLUTION X-RAY-DETECTORS
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