A low noise cryogenic preamplifier for the cosmic microwave background radiation anisotropy experiment

被引：2

作者：

Oh, ES ^{[1
]}

Sharp, EH ^{[1
]}

Fixsen, DJ ^{[1
]}

Cheng, ES ^{[1
]}

Inman, CA ^{[1
]}

Silver, C ^{[1
]}

机构：

[1] NASA, GSFC, Astron & Solar Phys Lab, Greenbelt, MD 20771 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2001年 / 72卷 / 06期

关键词：

D O I：

10.1063/1.1372167

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A cryogenic stage preamplifier for the TopHat experiment is built with InterFet NJ132L junction field effect transistors. We describe the testing procedure, screening, and fabrication of the six-channel preamplifier. It is attached to the LN2 shield and self-heats to 110 K with 20 mW total dissipation. The noise performance with grounded input is 7 nV root-mean-square (rms)/root Hz at 1.5 Hz and 1 nV rms/root Hz at 50 Hz. (C) 2001 American Institute of Physics.

引用

页码：2735 / 2737

页数：3

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