Title :
Low-noise high-speed general purpose SQUID system
Author :
Drung, D. ; Matz, H. ; Radic, T. ; Knappe, S. ; Menkel, S.
Author_Institution :
Physikalisch Tech. Bundesanstalt, Braunschweig, Germany
Abstract :
Summary form only given, as follows.We have developed a SQUID system with superior performance to most of the systems currently available. It combines a very low noise level of 3/spl times/10/sup -6/ /spl Phi//sub 0///spl radic/(Hz) with a high bandwidth of 10 MHz and a maximum slew rate of 5/spl times/10/sup 7/ /spl Phi//sub 0//s at 10 kHz, where /spl Phi//sub 0/ is the flux quantum. Due to its excellent performance the system can be used for various applications, for example, to build high-frequency geophysical measurement systems, test circuits for fast superconducting logic circuits, wideband picovoltmeters, and low-noise amplifiers for magnetic resonance experiments.
Keywords :
SQUID magnetometers; geophysical equipment; magnetic resonance; superconducting logic circuits; test equipment; voltmeters; 10 MHz; high bandwidth; high-frequency geophysical measurement systems; high-speed general purpose SQUID; low noise; low-noise amplifiers; magnetic resonance experiments; slew rate; superconducting logic circuits; test circuits; wideband picovoltmeters; Bandwidth; Circuit testing; Geophysical measurements; Logic testing; Magnetic circuits; Noise level; RLC circuits; SQUIDs; Superconducting logic circuits; System testing;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547104
