| EPSRC Reference: |
GR/J91319/01 |
| Title: |
DEVELOPMENT OF HIGH TC SQUID INSTRUMENTS AND THEIR APPLICATIONS |
| Principal Investigator: |
Donaldson, Professor GB |
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| Department: |
Physics |
| Organisation: |
University of Strathclyde |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 November 1994 |
Ends: |
30 April 1995 |
Value (£): |
18,137
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Summary on Grant Application Form |
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We seek a one year Visiting Fellowship for Dr Jan Kuznik, to enable him to bring his expertise in Josephson physics, in device modelling and in superconductive instrumentation to instruct and assist the Strathclyde Superconducting Devices Group in developing uses for high Tc SQUID systems, and to extend important work on the noise characterisation of high Tc Josephson junctions made in the Group and elswhere. This will involve the continued applications of a Mr SQUID (the first commercial high Tc SQUID from Conductus Inc), already improved in sensitivity tenfold during a brief visit by Dr Kuznik last winter. Measurements will be made of flux creep in YBCO tubes intended for field screening in biomagnetism and flux trapping for non-destructive evaluation (NDE). In addition, two of the latest SQUID systems from Conductus will be combined with a third sensor to produce a field-nulled gradiometer which can be used in the Earth's field without the associated noise problems due to the motion of trapped flux. The gradiometer will be tested in our NDE and biomagnetic applications. Dr Kuznik will also develop further a system to measure low frequency noise (0.1Hz-60kHz) in high Tc junctions. Such work is of fundamental importance, both to our junction and SQUID development programmes funded by SERC and to the advancement in general of high Tc SQUIDs, where excess junction noise still limits performance. We will also benefit from his experience in device modelling, both for understanding better the noise properties of these junctions, and for modelling the advanced types of low Tc SQUID that we are now making.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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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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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.strath.ac.uk |