High resolution x-ray transition-edge sensor cooled by tunnel junction refrigerators

被引：40

作者：

Miller, N. A. ^{[1
]}

O'Neil, G. C. ^{[1
]}

Beall, J. A. ^{[1
]}

Hilton, G. C. ^{[1
]}

Irwin, K. D. ^{[1
]}

Schmidt, D. R. ^{[1
]}

Vale, L. R. ^{[1
]}

Ullom, J. N. ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, Boulder, CO 80305 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 16期

基金：

美国国家航空航天局;

关键词：

Cooling - Optical resolving power - Refrigerators - Solid state devices - Superconducting transition temperature - Tunnel junctions;

D O I：

10.1063/1.2913160

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate cooling of an x-ray transition-edge sensor (TES) using solid-state refrigerators based on normal-metal/insulator/superconductor (NIS) tunnel junctions. We are able to operate the NIS refrigerators at a starting temperature of 260 mK, which is 75 mK above the TES transition temperature (185 mK), and still achieve high quality x-ray spectra with an energy resolution of 9.5 +/- 0.3 eV full width at half maximum at 5.9 keV. The maximum cooling achieved by the NIS refrigerators is 110 mK, from a starting temperature of 300 down to 190 mK. (c) 2008 American Institute of Physics.

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页数：3

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