DC SQUID series arrays with intracoil damping to reduce resonance distortions

被引：8

作者：

Huber, ME

Corey, AM

Lumpkins, KL

Nafe, FN

Rantschler, JO

Hilton, GC

Martinis, JM

Steinbach, AH

机构：

[1] Univ Colorado, Dept Phys, Denver, CO 80217 USA

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

来源：

APPLIED SUPERCONDUCTIVITY | 1997年 / 5卷 / 7-12期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/S0964-1807(98)00065-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on low-noise DC SQUID series arrays incorporating intracoil damping, which show smooth DC characteristics. The voltage-flux characteristics of these devices are reproducible upon repeated cooling and do not require multiple heating/cooling cycles to maximize peak-to-peak output voltage modulation depth. The devices consist of 100 DC SQUIDs with individual signal and feedback coils connected in series. The total input inductance is 600 nH, and the peak-to-peak output modulation is 4 mV with a transfer function of 350 V/A. The bandwidth is 5 MHz and the equivalent input current noise is approximately 2.5 pA/root Hz. With these characteristics, these devices are useful as preamplifiers for microcalorimeter X-ray detectors. Published by Elsevier Science Ltd.

引用

页码：425 / 429

页数：5

共 14 条

[1] A low-noise, two-stage DC SQUID amplifier with high bandwidth and dynamic range [J].