客服中心
咨询电话:+65 62233778
24小时服务电话: +65 62233778
投诉监督:+65 62233778
投稿邮箱:2355654820@qq.com 3003381682@qq.com
最新期刊更新
Preparation and Performance of CdZnTe Ray Detector
来源:世界期刊网 时间:2023-02-13 16:12:22点击:247
Abstract
γ-ray and x-ray detectors made by Cd1-xZnxTe alloy can gain high energy resolution and detect efficiency at room temperature due to its high atomic number, large energy gap and high density, which were well-developed recently. By well controlled of Cadmium partial pressure and compensatory doping technique, Ф90 mm Cd1-xZnxTe alloy obtained successfully (ρ≥1011 Ω·cm) by an improved-Bridgman method. 3 mm × 3 mm × 3 mm CZT detector was made at Kunming Institute of Physics, which has energy resolution of 3.52% (FWHM) at room temperature when detect 59.54 KeV Am241 γ-ray source.
Keywords
Cadmium zinc telluride (CZT); Room temperature detector; Crystal growth; Preparation process; Performance
References
Bertolucci, E., Maiorino, M., Mettivier, G., et al., 2002. Nucl Instrument Methods. A487, 193.
Czock, K.H., Arlt, R., 2001. Nucl Instrument Methods. A458, 175-182.
Asahi, T., et al., 1996. Journal of Crystal Growth. 161, 20.
Limousin, O., 2003. New trends in CdTe and CdZnTe detector for X-and gamma-ray applications. Nucl Instrument Methods. A504, 24.
Li, W.W., Sang, W.B., 2004. Research progress of CdZnTe Nuclear radiation detector materials and devices. Shanghai Nonferrous Metals. 25(2), 88-89.
Peter, K., 1990. The Pressure-Temperature-Composition Projection of the system Cadmium-tellurium. Crystal Res. Technol. 25, 1107.
Hiroshi Kimura, M., Komiya, H., 1973. Melt Compositions ofⅡ-Ⅵcompounds during Crystal Growth in a Hight-Pressure Furnace. Journal of Crystal Growth. 20, 283-291.
Rybk, A.V., Leonov, S.A., Prokhoretz, I.M., 2001. Influence of detector surface processing on detector performance. Nuclear Inst & Methods in Physics Research A. 458, 248-253.
Morton, E.J., Hossain, M.A., Antonis, P.De., et al., 2001. Investigation of Au-CdZnTe contacts using photovoltaic measurement. Nuclear Instruments & Methods in Physics Research. A458, 558-562.
Lachish, U., 1999. CdTe and CdZnTe semiconductor gamma detectors equipped with ohmic contacts. Nuclear Instruments and Methods. A436, 146-149.
Ricq, S., Glasser, F., Garin, M., 2001. Study of CdTe ang CdZnTe dectors for X-ray computed tomography. Nuclear Instruments and Methods in Physics Research. 458, 534-543.
Malm, H.L., Martini, M., 1974. Polarization Phenomena of CdTe nuclear Radiation Detectors. IEEE Transactions on Nuclear Science. 21, 322-330.
Bell, R.O., Entine, G., Serreze, H.B., 1974. Time dependent Polarization of CdTe Gamma-ray Detectors. Nuclear Instruments & Methods. 117, 267-271.