DocumentCode
2283093
Title
1:30000 cryogenic current comparator with optimum squid readout
Author
Bartolome, E. ; Sese, J. ; Rietveld, Gert ; Flokstra, J. ; Rillo, C. ; Camon, Agustin ; Rogalla, H.
Author_Institution
Dept. of Appl. Phys., Twente Univ., Enschede, Netherlands
fYear
2002
fDate
16-21 June 2002
Firstpage
280
Lastpage
281
Abstract
We developed a 1:30000 Cryogenic Current Comparator for SET current amplification. A dedicated low-noise, directly-coupled SQUID was used for the readout, which allowed reaching a sensitivity close to ideal. The ratio error was <9/spl times/10/sup -9/. The CCC-SQUID equivalent current input noise was 3.0 fA/Hz/sup 1/2/, measured down to 0.1 Hz.
Keywords
SQUIDs; current comparators; readout electronics; single electron transistors; superconducting device noise; DC SQUID readout; SET current amplification; cryogenic current comparator; equivalent current input noise; ratio error; sensitivity; Crosstalk; Cryogenics; Current measurement; Inductance; Lead; Niobium; SQUIDs; Superconducting coils; Superconducting device noise; Temperature measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location
Ottawa, Ontario, Canada
Print_ISBN
0-7803-7242-5
Type
conf
DOI
10.1109/CPEM.2002.1034830
Filename
1034830
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