Medical X-ray imaging with energy windowing

被引：26

作者：

Lindner, M

Blanquart, L

Fischer, P

Krüger, H

Wermes, N

机构：

[1] Univ Bonn, Inst Phys, D-53115 Bonn, Germany

[2] CNRS, IN2P3, Ctr Phys Particules, F-13288 Marseille 9, France

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2001年 / 465卷 / 01期

关键词：

pixel; photon counting; energy; window; X-ray imaging;

D O I：

10.1016/S0168-9002(01)00395-3

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A photon counting pixel read-out chip for medical X-ray imaging with energy windowing is presented. It consists of 32 x 32 pixels of 200 mum x 200 mum size, each of them contains two discriminators and two 18-bit counters. Both discriminator thresholds can be adjusted individually for good image homogeneity and a circuit has been designed to avoid threshold drift. Measurements on the noise behaviour, threshold variation and threshold drift are shown. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：229 / 234

页数：6

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