1. Gallium Arsenide particle detectors: a study of the active region and charge-collection efficiency
- Author
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G Mattei, C. Lanzieri, Anna Cavallini, P. Rinaldi, C. Del Papa, Antonio Castaldini, A. Cetronio, L. Berluti, S D'Auria, Antonino Zichichi, M. Proia, Filippo Nava, and Claudio Canali
- Subjects
Physics ,Nuclear and High Energy Physics ,business.industry ,Detector ,Context (language use) ,Alpha particle ,Charged particle ,Particle detector ,Semiconductor detector ,Gallium arsenide ,chemistry.chemical_compound ,Optics ,chemistry ,Measuring instrument ,Detectors and Experimental Techniques ,business ,Instrumentation - Abstract
Gallium arsenide particle detectors made by Alenia SpA have been tested within the context of the RD-8 project and found to have a high charge-collection efficiency (75%). We have analysed the data and found the overall behaviour of these detectors to be coherent and understandable in terms of one function: the local charge-collection efficiency. Two ways have been used to measure the width of the active region and the increase of such a width as a function of bias is found not to be consistent with a simple square-root law.
- Published
- 1995