The decision taken by the CMS experiment to build a tracker entirely based on silicon detectors has made necessary the use of thicker sensors instead of the usual 300-mum sensors for the outer part of the detector. We first present results on the performance of 500-mum-thick detectors, before and after neutron irradiation, bonded to the CMS tracker front-end electronics. Laboratory measurements show that the total collected charge scales linearly with thickness when compared with a 300-mum module, and the measured noise is in good agreement with expectations. The results obtained confirm the feasibility of large-area silicon trackers.
Performance of irradiated and nonirradiated 500-mu m-thick silicon microstrip detectors
MESSINEO, ALBERTO MARIA;TONELLI, GUIDO EMILIO;
2001-01-01
Abstract
The decision taken by the CMS experiment to build a tracker entirely based on silicon detectors has made necessary the use of thicker sensors instead of the usual 300-mum sensors for the outer part of the detector. We first present results on the performance of 500-mum-thick detectors, before and after neutron irradiation, bonded to the CMS tracker front-end electronics. Laboratory measurements show that the total collected charge scales linearly with thickness when compared with a 300-mum module, and the measured noise is in good agreement with expectations. The results obtained confirm the feasibility of large-area silicon trackers.File in questo prodotto:
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