J Feyt (CERN), E Kling (CERN), W Langhans (CERN), G Stefannini (CERN), F Vasey (CERN), J Dowell (Birmingham U.), R J Homer (Birmingham U.), I Kenyon (Birmingham U.), H Shaylor (Birmingham U.), K Webster (Birmingham U.), J Wilson (Birmingham U.), M Glick (Lausanne, Ecole Poly.), F K Reinhart (Lausanne, Ecole Poly.), R Cingolani, P G Pelfer, A Bosacci (INFN, Milan), S Franchi (INFN, Milan), P Duthie (Marconi, Stanmore), N Green (Marconi, Stanmore), A Moseley (Marconi, Stanmore), D Robbins (Marconi, Stanmore), D Streames-Smith (Marconi, Stanmore), N Try (Marconi, Stanmore), K Gill (Imperial Coll., London), G Hall (Imperial Coll., London), G Jarlskog (Lund U.), S Kroll (Lund U.), M Holder (Siegen U.), A Baird (Rutherford), R Halsall (Rutherford), S Quinton (Rutherford)