DocumentCode
866545
Title
Effects of high energy proton bombardment (50-280 MeV) on dc SQUIDS
Author
Muhlfelder, B. ; Gutt, G.M. ; Lockhart, J.M. ; Carelli, P. ; Zehnder, A. ; Mattenberger, F. ; Hajdas, W. ; Lerch, P. ; Henneck, R.
Author_Institution
W.W. Hansen Lab. of Phys., Stanford Univ., CA, USA
Volume
5
Issue
2
fYear
1995
fDate
6/1/1995 12:00:00 AM
Firstpage
3252
Lastpage
3254
Abstract
Three thin film dc SQUIDs of varied construction were bombarded with energetic protons in the energy range of 50 to 280 MeV. Measurements of the voltage output of the dc SQUIDs were taken in open loop, as well as flux locked mode, in an environment of proton flux that was varied from 10/sup 4/ to 10/sup 7/ protons/cm/sup 2//s. Discrete voltage jumps corresponding to 0.01 to 0.001 flux quanta were observed in two of the three SQUIDs in the flux locked mode; discrete changes in the open loop SQUID output voltage were also observed. Some data appear to be consistent with proton-induced flux motion in the body of the SQUID loop.<>
Keywords
SQUIDs; proton effects; 50 to 280 MeV; flux locked mode; flux motion; open loop mode; output voltage; proton bombardment; thin film DC SQUIDs; Coils; Detectors; Laser mode locking; Magnetic materials; Niobium; Physics; Protons; SQUIDs; Superconductivity; Voltage;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/77.403285
Filename
403285
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