A large use of silicon microstrip detectors is foreseen for the intermediate part of the CMS tracker. A specific research and development program has been carried out with the aim of finding design layouts and technological solutions for allowing silicon microstrip detectors to be reliably used on a high radiation level environment. As a result of this work single sided, AC-coupled, polysilicon biased, 300 μm thick, p+ on n substrate detectors were chosen. Irradiation tests have been performed on prototypes up to fluence 2×1014 n/cm2. The detector performances do not significantly change if the detectors are biased well above the depletion voltage. S/N is reduced by less than 20%, still enough to insure a good efficiency and space resolution. Multiguard structures has been developed in order to reach high voltage operation (above 500 V).

Test results of heavily irradiated Si detectors / S Albergo, P Azzi, E Babucci, N Bacchetta, A Bader, G Bagliesi, P Bartalini, A Basti, U Biggeri, G.M Bilei, D Bisello, D Boemi, F Bosi, L Borrello, C Bozzi, H Breuker, M Bruzzi, A Candelori, A Caner, R Castaldi, et al.. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - ELETTRONICO. - 422:(1999), pp. 238-241. [10.1016/S0168-9002(98)01101-2]

Test results of heavily irradiated Si detectors

BRUZZI, MARA;D'ALESSANDRO, RAFFAELLO;FOCARDI, ETTORE;
1999

Abstract

A large use of silicon microstrip detectors is foreseen for the intermediate part of the CMS tracker. A specific research and development program has been carried out with the aim of finding design layouts and technological solutions for allowing silicon microstrip detectors to be reliably used on a high radiation level environment. As a result of this work single sided, AC-coupled, polysilicon biased, 300 μm thick, p+ on n substrate detectors were chosen. Irradiation tests have been performed on prototypes up to fluence 2×1014 n/cm2. The detector performances do not significantly change if the detectors are biased well above the depletion voltage. S/N is reduced by less than 20%, still enough to insure a good efficiency and space resolution. Multiguard structures has been developed in order to reach high voltage operation (above 500 V).
1999
422
238
241
S Albergo;P Azzi;E Babucci;N Bacchetta;A Bader;G Bagliesi;P Bartalini;A Basti;U Biggeri;G.M Bilei;D Bisello;D Boemi;F Bosi;L Borrello;C ...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/639924
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