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Transient behaviour and rate effects in resistive detectors
Fraga, M. M.; Marques, R. Ferreira; Ivaniouchenkov, Y.; Lima, E. P. de; Neves, F.; Policarpo, A. J. P. L.; C. Bueno, Carmen; Gonçalves, Josemary A. C.The dependence of the detection efficiency (or charge gain) of a resistive detector on the counting rate has been considered by several authors. The influence of the resistivity of the electrodes, the counter geometry and the gas mixture composition have also been studied. Most of those measurements assume a stationary regime. In the present work we report on studies of the transient behaviour of detectors with...
Rate effects in a proportional counter with resistive cathode
Bueno, Carmen C.; Fraga, M. M.; Gonçalves, Josemary A. C.; Marques, R. Ferreira; Policarpo, A. J. P. L.; Santos, M. Damy de S.In this work, the rate effects associated with the gain of detectors with resistive electrodes are considered. To study these effects it was decided to use the classical proportional counter geometry, with a cylindrical glass tube as the cathode, rather than parallel plate devices. Indeed, the generality of the information obtained is not affected and the cylindrical proportional counter geometry has several ad...
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