Affiliation: | (1) Systems and Payloads Department, British Aerospace Space Systems Ltd Filton, BS12 7QW Bristol, U.K.;(2) Materials Science Department, British Aerospace Sowerby Research Centre Filton, BS12 7QW Bristol, U.K.;(3) Department of Physics Queen Mary and Westfield College, University of London, E1 4NS London, U.K.;(4) Electronic Engineering Laboratories, University of Kent, CT2 7NT Kent, U.K. |