TY - GEN AU - MORRISH,A H AU - WILLIAMS,G W AU - DARBY,E K TI - Ultraviolet photon counting with an electron multiplier SN - 0034-6748 PY - 2004///0215 KW - Electrons KW - Photometry KW - Photons N1 - Publication Type: Journal Article UR - https://doi.org/10.1063/1.1745448 ER -