Radiation detector using a bulk high T[sub c] superconductor

Patent · Tue Dec 07 00:00:00 EST 1993

OSTI ID:5434634

Artuso, J F; Franks, L A; Hull, K L; Symko, O G

A radiation detector is provided, wherein a bulk high T[sub c] superconducting sample 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 which is coupled by an input coil to an rf SQUID. 4 figures.

• Research Organization: EG & G Energy Measurements Inc
• DOE Contract Number: AC08-88NV10617
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 5268577; A
• OSTI ID: 5434634
• Resource Relation: Patent File Date: 8 Sep 1992
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
RADIATION DETECTORS
DESIGN
HIGH-TC SUPERCONDUCTORS
MAGNETIC FLUX
SQUID DEVICES
ELECTRONIC EQUIPMENT
EQUIPMENT
FLUXMETERS
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
SUPERCONDUCTING DEVICES
SUPERCONDUCTORS
440100* - Radiation Instrumentation
665412 - Superconducting Devices- (1992-)