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Semi-Insulating InP Particle Detectors For X- And γ-Ray Detection

Published online by Cambridge University Press:  10 February 2011

P. G. Pelfer ,
F. Dubecký ,
R. Fomari ,
M. Pikna ,
M. Krempaský ,
E. Gombia ,
J. Darmo ,
R. Mosca  and
M. Sekácová
P. G. Pelfer
Affiliation:
Department of Physics of the University of Florence and INFN, Largo E.Fermi 2 1-50125 Firenze, Italy, pelfer@fi.infn.it
F. Dubecký
Affiliation:
Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cest 9 SK-84239 Bratislava, Slovakia
R. Fomari
Affiliation:
MASPEC CNR, Parma, Via Chiavari 18/A, I-43100 Parma, Italy
M. Pikna
Affiliation:
Faculty of Mathematics and Physics, Comenius University, Mlynská dolina SK-842 33 Bratislava, Slovakia
M. Krempaský
Affiliation:
MASPEC CNR, Parma, Via Chiavari 18/A, I-43100 Parma, Italy
E. Gombia
Affiliation:
MASPEC CNR, Parma, Via Chiavari 18/A, I-43100 Parma, Italy
J. Darmo
Affiliation:
Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cest 9 SK-84239 Bratislava, Slovakia
R. Mosca
Affiliation:
MASPEC CNR, Parma, Via Chiavari 18/A, I-43100 Parma, Italy
M. Sekácová
Affiliation:
Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cest 9 SK-84239 Bratislava, Slovakia
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Abstract

A study of electrical properties and detection performances of the semi-insulating (SI) InP based detectors is presented. Detectors with a top P+ layer and a Schottky back contact give the charge collection efficiency about 90 % and an energy resolution 3.7% (FWHM) for 5.48MeV α-particles at 250 K. Detection of X-rays (122 keV and 60 keV) photons in temperature region 220–250 K is demonstrated. Multiple peaking observed during detection of photons is discussed.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 487: Symposium I – Semiconductors for Room-Temperature Radiation II , 1997 , 477
Copyright
Copyright © Materials Research Society 1998

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References

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