Recent achievements of the high resolution Schottky CdTe diode for γ-ray detectors

Details Recent achievements of the high resolution Schottky CdTe diode for γ-ray detectors Recent achievements of the high resolution Schottky CdTe diode for γ-ray detectors

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004newar..48..309t&link_type=abstract

New Astronomy Reviews, Volume 48, Issue 1-4, p. 309-313.

Astronomy and Astrophysics

Astronomy

14

Cadmium Telluride (Cdte), Cdte Diode Detector, Γ-Ray, X-Ray

Scientific paper

We describe the recent progress on the use of Schottky Cadmium telluride (CdTe) diode detectors for γ-ray spectroscopy. The extremely low leakage current of the newly developed CdTe diode allows us to apply a much higher bias voltage in comparison with the previous CdTe detectors. Both the improved charge-collection efficiency and the low leakage current lead to a good energy resolution even at room temperature. Large-area CdTe diode detectors with dimensions of 21.5×21.5 mm2 are now available. By stacking 40 layers of these large-area devices, we have achieved a good energy resolution of several keV (FWHM) for MeV γ-rays.

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