sensitive housing with stainless steel foils (0.1 mm) separating it from the vacuum. The IC analogue signal was fed into a current to frequency converter. [1] S. Schlemme et al., GSI Scientific Report (2015) [...] Two-gap IC with active area of 50 mm diameter. Intensity curve measured for 12C at 62 MeV/nucleon [1]. At the highest particle rates it is foreseen to operate a SEM transmission monitor equipped with thin [...] the pcCVD-DD signals as a function of the irradiation time at two different beam attenuation factors f1 and f2. [3] S. Schlemme et al., Diam. Relat. Mater. 99 (2019) 107536 The counting efficiency of a a