New, high performance nuclear spectroscopy system using Si-PIN diodes and CdTe detectors
- AMPTEK, Inc., Bedford, MA (United States)
- 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-; CODEN: IETNAE; TRN: 94-022999
- Journal Information:
- IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 41:4Pt1; Conference: NSS-MIC '93: nuclear science symposium and medical imaging conference, San Francisco, CA (United States), 30 Oct - 6 Nov 1993; ISSN 0018-9499
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GAMMA SPECTROMETERS
DESIGN
PERFORMANCE
X-RAY SPECTROMETERS
CDTE SEMICONDUCTOR DETECTORS
SI SEMICONDUCTOR DETECTORS
THERMOELECTRIC REFRIGERATORS
DIRECT ENERGY CONVERTERS
MEASURING INSTRUMENTS
RADIATION DETECTORS
REFRIGERATORS
SEMICONDUCTOR DETECTORS
SPECTROMETERS
440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation