Test-beam and laboratory characterisation of the TORCH prototype detector by Ros, A, Brook, N, Castillo-Garcia, L, Conneely, T, Cussans, D, Foehl, K, Forty, R, Frei, C, Gao, R, Gys, T, Harnew, N, Milnes, J, Piedigrossi, D, Rademacker, J, Van Dijk, M