Performance and lifetime of micro-channel plate tubes for the TORCH detector - Gys, T; García, L; Fopma, J; Forty, R; Frei, C; Gao, R; Harnew, N; Keri, T; Piedigrossi, D (Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2014)