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Details of Grant 

EPSRC Reference: GR/J73179/01
Title: ADVANCED COMPUTING FACILITIES FOR THE DESIGN AND APPLICATION OF SUPERCONDUCTING DEVICES
Principal Investigator: Pegrum, Dr CM
Other Investigators:
Cochran, Professor S Lockerbie, Professor NA
Researcher Co-Investigators:
Project Partners:
Department: Physics
Organisation: University of Strathclyde
Scheme: Standard Research (Pre-FEC)
Starts: 10 June 1994 Ends: 09 June 1997 Value (£): 40,090
EPSRC Research Topic Classifications:
Materials Processing
EPSRC Industrial Sector Classifications:
Electronics
Related Grants:
Panel History:  
Summary on Grant Application Form
We request facilities to enhance our well-established interests in the design and application of SQUIDs (Superconducting Quantum Interference Devices - sensors with unequalled performance as magnetic flux or field detectors). Three programmes would benefit and expand into new areas. (1) We require more powerful workstation-based systems for photolithographic mask design, with add-on packages to extract stray inductance values from an actual physical layout - essential information for detailed modelling of behaviour. Coupled with this is a need for better facilities for the actual modelling, using packages such as JSIM or JSPICE, or our own routines. This also coves noire studies in SQUIDs (including digital SQUIDs), and the simulation of high-Tc digital logic circuits.(2) We are successfully using SQUIDs for Non-Destructive Evaluation, but to progress we need greater modelling and data processing capabilities, using Finite Element Modelling (FEM) and inversion procedures. We will make much greater use of FEM, and extend this to include 3D depth profiling as well as existing 2D analyses. In addition, for static field defect mapping we need to expand modelling of SQUID response from point and line to plane dipole distributions, which is beyond the capacity of our existing systems. We also see neural networks as an attractive technique for some of our future work.(3) We have recently made significant contributions to key design features of the Satellite Test of the Equivalence Principle (STEP) experiment, by modelling the shape of the differential accelerometers' test masses, se as to minimise the effect of external gravitational perturnations. We wish to extend this computationally-intensive work to model as well the main perturbing source - the space of the free surface of the superfluid liquid helium in the spacecraft's dewar, under the influences of weak gravity gradients, surface tension and heat fluxes.
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Organisation Website: http://www.strath.ac.uk