New, high performance nuclear spectroscopy system using Si-PIN diodes and CdTe detectors

Author

Pantazis, J. ; Huber, A. ; Okun, P. ; Squillante, M.R. ; Waer, P. ; Entine, G.

Author_Institution

AMPTEK Inc., Bedford, MA, USA

Volume

41

Issue

4

fYear

1994

fDate

8/1/1994 12:00:00 AM

Firstpage

1004

Lastpage

1008

Abstract

A compact, high resolution X-ray and gamma ray spectroscopy system has recently been developed which provides excellent energy resolution over a wide range of photon energies. Two detector types have been tested, a cooled silicon PIN photodiode for X-ray energies from 2keV to 30 keV and a CdTe detector for energies from 20 keV to 1 MeV. The CdTe detector can be operated cooled or at room temperature. The heart of the system is a miniature preamplifier developed at AMPTEK which is used in combination with a small thermoelectric cooler to reduce the leakage current of the detectors. Using the cooled Si-PIN detector, 660 eV FWHM was achieved at 5.9 keV and using a CdTe detector 1.3 keV was achieved at 60 keV both with nearly 100% counting efficiency. Good resolution was also achieved at higher energies

Keywords

X-ray detection and measurement; X-ray spectroscopy; gamma-ray detection and measurement; gamma-ray spectroscopy; leakage currents; p-i-n diodes; semiconductor counters; 2 to 30 keV; 20 keV to 1 MeV; CdTe; CdTe detectors; Si; Si-PIN diodes; X-ray spectroscopy; energy resolution; gamma ray spectroscopy; high resolution; leakage current; nuclear spectroscopy system; preamplifier; Energy resolution; Heart; PIN photodiodes; Preamplifiers; Silicon; Spectroscopy; Temperature; Testing; X-ray detection; X-ray detectors;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.322848

Filename

322848