| EPSRC Reference: |
GR/J78372/01 |
| Title: |
DESIGN OF A FIELD GRADIENT CONTROL SYSTEM FOR USE IN ADVANCED FEATURE WHOLE BODY NMR SYSTEMS |
| Principal Investigator: |
Young, Professor I |
| Other Investigators: |
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| Department: |
Diagnostic Radiology |
| Organisation: |
Royal Postgraduate Medical School |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 December 1994 |
Ends: |
30 November 1997 |
Value (£): |
51,942
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| EPSRC Research Topic Classifications: |
| Instrumentation Eng. & Dev. |
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Summary on Grant Application Form |
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New approaches now being used in whole body NMR imaging and spectroscopy make demands on the performance of the field gradient system which are far in excess of those experienced previously. The programme is directed towards satisfying these requirements by developing new methods of instrumentation and control. In the systems presently in use the gradient coil currents are controlled to demand values and it is assumed that the gradient fields are in proportion to the currents. This may not be so far a number of reasons which include geometrical changes and eddy current formulation. It is proposed to produce a radical improvement to the systems by measuring the flux directly and using it as a feedback parameter. Arrays of superconducting NMR probes and cryogenically cooled search coils for gradient field level monitoring will be devised and the signals used together with direct current measurements in a DSP based control system. The performance of the new system will be demonstrated in clinical operation.
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Key Findings |
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Potential use in non-academic contexts |
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Impacts |
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| Description |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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