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

Conference · Mon Aug 01 04:00:00 EDT 1994 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:7155364

Pantazis, J; Huber, A; Okun, P ^[1]; Squillante, M R; Waer, P; Entine, G ^[2]

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1. AMPTEK, Inc., Bedford, MA (United States)
2. Radiation Monitoring Devices, Inc., Watertown, MA (United States)

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 2 keV 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.

• OSTI ID: 7155364
• Report Number(s): CONF-931051--
• Conference Information: Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 41:4Pt1
• Country of Publication: United States
• Language: English

Related Subjects

440103* -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CDTE SEMICONDUCTOR DETECTORS
DESIGN
DIRECT ENERGY CONVERTERS
GAMMA SPECTROMETERS
MEASURING INSTRUMENTS
PERFORMANCE
RADIATION DETECTORS
REFRIGERATORS
SEMICONDUCTOR DETECTORS
SI SEMICONDUCTOR DETECTORS
SPECTROMETERS
THERMOELECTRIC REFRIGERATORS
X-RAY SPECTROMETERS