LTS and HTS SQUID Sensors

• LTS SQUIDs with 180 nH to 1.2 µH input inductances

• Instrumentation SQUIDs feature dual feedback modes to enable current-lock or flux-lock operation using standard closed-loop feedback electronics

• Integrated ultra low-noise LTS SQUID magnetometers, axial gradiometers

• Cooled matching circuitry not required using pcSQUID™ readout electronics

• Operable with as few as four wires
(plus two for heater) using pcSQUID™

• Fabricated using a robust and reliable Nb/Al-AlO_x/Nb trilayer Josephson junction technology

STAR Cryoelectronics offers an extensive line of state-of-the-art low-T_c dc SQUID sensors, including instrumentation SQUIDs with input inductances ranging from 180 nH to 1.2 µH, ultra low-noise integrated magnetometers and axial gradiometers, SQUID array amplifiers, miniature susceptometers, and Q-spoiler chips. Standard and custom SQUID packages and niobium shield assemblies with or without connector interfaces are available. Mating cryocables featuring 100% rf shielding are available separately.

STAR Cryoelectronics also offers high-T_c dc SQUID magnetometers sealed in compact, button-shaped sensor packages or mounted in complete sensor assemblies with connector interfaces.

STARCryo dc SQUIDs are simple to operate using pcSQUID™, the advanced PC-based SQUID control and readout electronics available from STAR Cryoelectronics. The smooth dc characteristics of the SQUIDs also ensure easy operation using any compatible feedback electronics.

SQUID Selection Guide
Sensor Handling Procedures