High precision electrical substitution radiometer based on superconducting-resistive transition edge thermometry

被引：12

作者：

Reintsema, CD ^{[1
]}

Koch, JA ^{[1
]}

Grossman, EN ^{[1
]}

机构：

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

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1998年 / 69卷 / 01期

关键词：

D O I：

10.1063/1.1148522

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We describe the design and measured electrical performance of the first electrical substitution radiometer based on superconducting thermometers. Prospective applications emphasize high precision measurement of low power, mid-and far-IR blackbody radiation. The minimum noise floor for a single measurement of substitution power was 2 pW for an integration time of 2.7 a. For an extended series of experiments covering a range of substitution power from 0.5 nW to 5 mu W, the noise floor can be roughly approximated as 4 pW plus 7 x 10(-6) times the measured power. Analysis of the results indicates the precision is limited by a combination of thermal parasitics and electronic noise contributions.

引用

页码：152 / 163

页数：12

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