A Mo-Cu superconducting transition-edge microcalorimeter with 4.5 eV energy resolution at 6 keV

被引：121

作者：

Irwin, KD ^{[1
]}

Hilton, GC ^{[1
]}

Martinis, JM ^{[1
]}

Deiker, S ^{[1
]}

Bergren, N ^{[1
]}

Nam, SW ^{[1
]}

Rudman, DA ^{[1
]}

Wollman, DA ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, Boulder, CO 80303 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 444卷 / 1-2期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/S0168-9002(99)01354-6

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We describe a superconducting transition-edge microcalorimeter with an energy resolution of 4.5 +/- 0.1 eV full-width at half-maximum (FWHM) for Mn K alpha X-rays from an Fe-55 source. The thermometer consists of a photolithographically patterned Mo-Cu superconducting proximity bilayer with a 93 mK transition temperature The device is fabricated on a Si3N4 membrane patterned as a "flyswatter" to control the thermal conductance to the heat bath. The sensor is voltage biased with an on-chip shunt resistor, and the current is measured by a two-stage SQUID amplifier consisting of a single first-stage SQUID and a series-array second-stage SQUID. Published by Elsevier Science B.V.

引用

页码：184 / 187

页数：4

共 6 条

[1] A NOVEL BOLOMETER FOR INFRARED AND MILLIMETER-WAVE ASTROPHYSICS [J].