Characterization of small CdTe detectors to be used for linear and matrix arrays

Author

Casali, F. ; Bollini, D. ; Chirco, P. ; Rossi, M. ; Baldazzi, G. ; Dusi, W. ; Caroli, E. ; DiCocco, G. ; Donati, A. ; Landini, G. ; Stephen, J.B.

Author_Institution

Dipartimento di Fisica, Bologna Univ., Italy

Volume

39

Issue

4

fYear

1992

fDate

8/1/1992 12:00:00 AM

Firstpage

598

Lastpage

604

Abstract

The authors describe a comparison performed between two types of CdTe detectors operating in different configurations, considering the possibility of constructing array detectors for medical and industrial applications, and the development of a multi-probe matrix array for use in astrophysics, such as for the detection of 511-keV annihilation radiation. The main interest was in the development and optimization of small probes with a cross section of a few square millimeters having high efficiency and good energy resolution of 500/700 keV photons. A mounting has been developed which optimizes the efficiency and improves the time resolution without penalizing the energy resolution to any great extent. The experimental work has been performed in conjunction with mathematical simulations making use of a three-dimensional Monte Carlo code

Keywords

II-VI semiconductors; cadmium compounds; semiconductor counters; CdTe detectors; annihilation radiation; array detectors; astrophysics; energy resolution; industrial; matrix arrays; medical; multi-probe matrix array; small probes; three-dimensional Monte Carlo code; Absorption; Astrophysics; Crystals; Energy resolution; Geometry; Monte Carlo methods; Production; Radiation detectors; Sensor arrays; Spatial resolution;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.159672

Filename

159672