Simplified calculus for the design of a cryogenic current comparator

The calculation of inductances of superconducting structures like the cryogenic current comparator (CCC) is not straightforward due to image effects and unknown current distributions. By treating the problem as a magnetic circuit, an approximate analytical expression for the self-inductance of the s...

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Bibliographic Details
Published inIEEE transactions on instrumentation and measurement Vol. 52; no. 2; pp. 612 - 616
Main Authors Sese, J., Bartolome, E., Camon, A., Flokstra, J., Rietveld, G., Rillo, C.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.04.2003
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Approximation
Calculus
Cryogenics
Current comparators
Energy resolution
Inductance
Instrumentation
Magnetic analysis
Magnetic circuits
Magnetic flux
Mathematical analysis
Physics
Shields
SQUIDs
Superconducting coils
Superconductivity
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Summary:The calculation of inductances of superconducting structures like the cryogenic current comparator (CCC) is not straightforward due to image effects and unknown current distributions. By treating the problem as a magnetic circuit, an approximate analytical expression for the self-inductance of the shielded CCC is obtained. This formula can be used to derive a "rule of thumb" for maximizing the value of an inductance inside a superconducting shield. Using this rule the design of an optimum CCC is simplified.
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ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.2003.811579