Josephson junction q-spoiler
This patent describes a detection system for detecting the gyroprecessional resonance of a specimen having a particle system with magnetic or electric dipole moments comprising: means for irradiating the specimen with a pulse of high frequency radiation, detector means for detecting signals produced by magnetic resonance of the specimen, a dc SQUID having a superconducting ring and two shunted Josephson tunnel junctions interrupting the ring, the ring having a bias current input at one side thereof between the junctions and a bias current output at the other side thereof between the junctions, means for establishing a constant magnetic flux threading the SQUID ring, means for supplying a bias current to the bias current input of the SQUID, an input coil inductively coupled to the SQUID ring, and a resonant circuit coupling the detector means to the input coil.
- Assignee:
- Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4733182
- Application Number:
- TRN: 88-022370
- OSTI ID:
- 7254362
- Resource Relation:
- Patent File Date: Filed date 25 Mar 1986
- Country of Publication:
- United States
- Language:
- English
Similar Records
Radiofrequency amplifier based on a DC superconducting quantum interference device
Josephson junction Q-spoiler
Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
MAGNETIC RESONANCE
METERING
METERS
SQUID DEVICES
DESIGN
DIPOLE MOMENTS
DIRECT CURRENT
JOSEPHSON JUNCTIONS
MAGNETIC FLUX
PULSE GENERATORS
RESONANCE
CURRENTS
ELECTRIC CURRENTS
ELECTRONIC EQUIPMENT
EQUIPMENT
FLUXMETERS
FUNCTION GENERATORS
JUNCTIONS
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
SUPERCONDUCTING DEVICES
SUPERCONDUCTING JUNCTIONS
440300* - Miscellaneous Instruments- (-1989)
420201 - Engineering- Cryogenic Equipment & Devices