Design and commissioning of a high magnetic field muon spin relaxation spectrometer at the ISIS pulsed neutron and muon source. by Lord, J, McKenzie, I, Baker, P, Blundell, S, Cottrell, S, Giblin, SR, Good, J, Hillier, A, Holsman, B, King, P, Lancaster, T, Mitchell, R, Nightingale, J, Owczarkowski, M, Poli, S, Pratt, F, Rhodes, N, Scheuermann, R, Salman, Z