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Details of Grant 

EPSRC Reference: GR/J27196/01
Title: HIGH TEMPERATURE SEMICONDUCTOR SENSORS APPLIED TO MAGNETIC FIELD MAPPING
Principal Investigator: Donaldson, Professor GB
Other Investigators:
Cochran, Professor S Pegrum, Dr CM MacFarlane, Dr J
Researcher Co-Investigators:
Project Partners:
Department: Physics
Organisation: University of Strathclyde
Scheme: Standard Research (Pre-FEC)
Starts: 24 September 1993 Ends: 23 March 1996 Value (£): 157,780
EPSRC Research Topic Classifications:
Materials Processing
EPSRC Industrial Sector Classifications:
Aerospace, Defence and Marine Manufacturing
Healthcare
Related Grants:
Panel History:  
Summary on Grant Application Form
The major worldwide effort in fundamental HTC research has produced SQUIDs with noise performance approaching the theoretical limit. To date though there has been more success in making the SQUIDs than applying them. We therefore propose to study some of the problems of designing and modelling, manufacturing and using complete electromagnetic field measuring and mapping systems based on these devices. We will first assess alternative device designs, partly by computer modelling, in terms of spatial resolution of the order of mm, white and 1/f noise levels, at the pT level and their ability to make measurements in the open laboratory. Ease of fabrication and novel performance verification techniques are also important. We anticipate developing gradiometric sensors with locally screened or internally gradiometric DC SQUIDs, and either integrated or flip-chip pick-up coils to provide the required field sensitivity and uniform field rejection. We will also study polarising field sources based on flux trapped in bulk HTC material and on permanent magnets, and we will develop appropriate cryogenic equipment and instrumentation where necessary. Our ultimate target is to combine existing test facilities and low Tc expertise with experimental HTC based systems to demonstrate NDT and foetal cardiography measurements, and to allow other possible applications.
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Organisation Website: http://www.strath.ac.uk