TY - JOUR
T1 - Improvement of the CdTe diode detectors using a guard-ring electrode
AU - Nakazawa, Kazuhiro
AU - Oonuki, Kousuke
AU - Tanaka, Takaaki
AU - Kobayashi, Yoshihito
AU - Tamura, Ken'ichi
AU - Mitani, Takefumi
AU - Sato, Goro
AU - Watanabe, Shin
AU - Takahashi, Tadayuki
AU - Ohno, Ryoichi
AU - Kitajima, Akihito
AU - Kuroda, Yoshikatsu
AU - Onishi, Mitsunobu
PY - 2004/8
Y1 - 2004/8
N2 - Recent results from the Schottky CdTe diode detectors employing a guard-ring (GR) electrode are reported. A cathode electrode, made of platinum, was separated into an active electrode(s) and a surrounding GR. Typical leakage current of a device with active area of 2 × 2 mm2 and 0.5 mm thickness surrounded by a GR, is 7 and 20 pA at a bias of 100 and 500 V, respectively, operated at 20°C. Spectral resolution of this device is 0.93 and 1.2 keV (FWHM) at 59.5 and 122 keV, respectively, operated at 20°C with a bias of 800 V. Detailed study of the characteristics of these devices working as a gamma-ray detector is presented.
AB - Recent results from the Schottky CdTe diode detectors employing a guard-ring (GR) electrode are reported. A cathode electrode, made of platinum, was separated into an active electrode(s) and a surrounding GR. Typical leakage current of a device with active area of 2 × 2 mm2 and 0.5 mm thickness surrounded by a GR, is 7 and 20 pA at a bias of 100 and 500 V, respectively, operated at 20°C. Spectral resolution of this device is 0.93 and 1.2 keV (FWHM) at 59.5 and 122 keV, respectively, operated at 20°C with a bias of 800 V. Detailed study of the characteristics of these devices working as a gamma-ray detector is presented.
KW - Cadmium telluride (CdTe)
KW - Diode
KW - Gamma-ray
KW - Guard-ring (GR)
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U2 - 10.1109/TNS.2004.832684
DO - 10.1109/TNS.2004.832684
M3 - Article
AN - SCOPUS:4444338347
SN - 0018-9499
VL - 51
SP - 1881
EP - 1885
JO - IEEE Transactions on Nuclear Science
JF - IEEE Transactions on Nuclear Science
IS - 4 I
ER -