Thermal-response time of superconducting transition-edge microcalorimeters

被引：179

作者：

Irwin, KD ^{[1
]}

Hilton, GC ^{[1
]}

Wollman, DA ^{[1
]}

Martinis, JM ^{[1
]}

机构：

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

来源：

JOURNAL OF APPLIED PHYSICS | 1998年 / 83卷 / 08期

关键词：

D O I：

10.1063/1.367153

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate limits on the thermal-response time of superconducting transition-edge microcalorimeters. For operation at 0.1 K, we show that the lower limit on the response time of a superconducting transition-edge microcalorimeter is of order 1 mu s due to the heat diffusion time, electrical instabilities, the amplifier noise, and the critical current of the superconducting film. The response time is not limited by self-heating effects and is independent of the intended photon energy. However, design constraints associated with the inductance of the bias circuit make it difficult to achieve the fastest response times for devices with heat capacities high enough for x-ray and gamma-ray detection.

引用

页码：3978 / 3985

页数：8

共 20 条

[1] QUASI-PARTICLE BRANCH MIXING RATES IN SUPERCONDUCTING ALUMINUM [J].