The influence of energy weighting on X-ray imaging quality

被引：138

作者：

Giersch, J ^{[1
]}

Niederlöhner, D ^{[1
]}

Anton, G ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Phys Inst Abt 4, D-91058 Erlangen, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2004年 / 531卷 / 1-2期

关键词：

X-ray imaging; simulation; signal-to-noise ratio; energy weighting;

D O I：

10.1016/j.nima.2004.05.076

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 [仪器科学与技术]; 080401 [精密仪器及机械]; 081102 [检测技术与自动化装置];

摘要：

Recent developments in radiation imaging detectors offer a perspective towards energy sensitive X-ray pixel detectors. Such spectroscopic pixel detectors would provide energy information in addition to the spatial information. One way to use this additional energy information is to weight each photon by an energy dependent factor. Under stringent assumptions we can show how this energy weighting has to be performed to achieve maximum image quality. In order to visualise the impact of the weighting technique on the image quality we have simulated three radiologic cases with the EGS4-based Monte Carlo Roentgen Simulation ROSI (Nucl. Instr. and Meth. A 509 (2003) 151; www.pi4.physik.uni-eriangen.de/Giersch/ROSI) (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：68 / 74

页数：7

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