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Superconducting Quantum Interferance Device (SQUID)

A SQUID (Superconducting QUantum Interference Device) is a very sensitive magnetometer used to measure extremely weak magnetic fields, based on superconducting loops containing Josephson junctions.

cogsHow does it work?


SQUIDs are sensitive enough to measure fields as low as 5 aT (5×10−18 T) within a few days of averaged measurements. Their noise levels are as low as 3 fT·Hz-½. For comparison, a typical refrigerator magnet produces 0.01 tesla (10−2 T), and some processes in animals produce very small magnetic fields between 10−9 T and 10−6 T.


Applications:

Biology; heart and brain Diagnosis; MRI.

Sample Handling Requirements:


Warwick Expertise:


Further Information:

SQUID equipment

Typical results format, and sample:

Status
Availability

Warwick collect/analyse data

Warwick collect data

Available to user with expertise/contribution

Spare capacity for collaborative research
  Not currently available