METHOD FOR MANUFACTURING AN OPTICAL MEASURING DEVICE CAPABLE OF OPERATING UNDER IONISING RADIATION AND OPTICAL MEASURING DEVICE CAPABLE OF OPERATING UNDER IONISING RADIATION

The invention concerns a method for manufacturing an optical measuring device (1) capable of operating under ionising radiation. The method comprises, in particular: the selection of a pure silica glass as crown optical glass in order to form a first optical component (21); selecting a flint optical glass in a group of flint optical glasses each having a cerium-free composition, in order to form a second optical component (22); providing a detection system capable of operating under ionising radiation and associating the detection system and the first and second optical component (21, 22) in order to form the optical measuring device (1). The step of selecting the flint glass is carried out, in particular, from among glasses of the group of flint optical glasses on the basis of pre-irradiation and post irradiation transmission values.