A RADIATION DETECTION SYSTEM FOR HIGH-ENERGY COMPUTERIZED-TOMOGRAPHY USING CDZNTE DETECTORS

被引：7

作者：

BALDAZZI, G

ROSSI, M

QUERZOLA, E

GUIDI, G

CHIRCO, P

SCANNAVINI, MG

ZANARINI, M

CASALI, F

机构：

[1] UNIV BOLOGNA,DEPT PHYS,I-40126 BOLOGNA,ITALY

[2] IST NAZL FIS NUCL,I-40126 BOLOGNA,ITALY

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 1995年 / 42卷 / 04期

关键词：

D O I：

10.1109/23.467911

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This work presents a particular application in which cadmium-zinc telluride (CdZnTe) detectors are used in photoconductive mode in a high-energy computerized tomography system for industrial applications. A first-generation tomography facility has been set up at the University of Bologna, based on a 12-MeV pulsed linear accelerator X-ray source and a single 10x10x2 mm(3) CdZnTe detector. The obtained results show that CdZnTe detectors exhibit better timing performances than CdTe detectors, and are thus more suitable for tomographic applications. Special-purpose signal conditioning electronics have been developed in order to compensate slow and fast signal fluctuations induced by temperature variations and Linac instabilities. In such a way, the dynamic range of the detector has been improved up to more than 3 orders of magnitude. A set of images was acquired in order to evaluate the overall performances of the tomographic facility.

引用

页码：575 / 579

页数：5

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