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Radiation detector using a bulk high T.sub.c superconductor

Patent ·
OSTI ID:869055
 [1];  [1];  [2];  [3]
  1. Santa Barbara, CA
  2. Ventura, CA
  3. Salt Lake City, UT
+ Show Author Affiliations
A radiation detector (10) is provided, wherein a bulk high T.sub.c superconducting sample (11) is placed in a magnetic field and maintained at a superconducting temperature. Photons of incident radiation will cause localized heating in superconducting loops of the sample destroying trapped flux and redistributing the fluxons, and reducing the critical current of the loops. Subsequent cooling of the sample in the magnetic field will cause trapped flux redistributed Abrikosov fluxons and trapped Josephson fluxons. The destruction and trapping of the fluxons causes changes in the magnetization of the sample inducing currents in opposite directions in a pickup coil (12) which is coupled by an input coil (15) to an rf SQUID (16).
Research Organization:
EG & G Energy Measurements Inc
DOE Contract Number:
AC08-88NV10617
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 5268577
OSTI ID:
869055
Country of Publication:
United States
Language:
English

References (1)

Josephson Effect Devices journal May 1979

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Related Subjects

/250/
10
11
12
15
16
abrikosov
bulk
causes
causes changes
changes
coil
cooling
coupled
critical
critical current
current
currents
destroying
destruction
detector
directions
field
flux
fluxons
heating
incident
incident radiation
inducing
input
josephson
localized
localized heating
loops
magnetic
magnetic field
magnetization
maintained
opposite
opposite direction
opposite directions
photons
pickup
placed
provided
radiation
radiation detector
redistributed
redistributing
reducing
rf
sample
squid
subsequent
subsequent cooling
superconducting
superconducting sample
superconducting temperature
superconductor
temperature
trapped
trapping