Monte Carlo simulations in X-ray imaging

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• 作者：J&#xfc ; rgen Giersch ; J&#xfc ; rgen Durst
• 关键词：X-ray imaging ; Monte Carlo simulation ; Energy weighting ; Photon counting ; Material reconstruction ; X-ray tube simulation ; ROSI
• 刊名：Nuclear Instruments and Methods in Physics Research Section A ; Accelerators ; Spectrometers ; Detectors and Associated Equipment
• 出版年：2008
• 期刊代码：41_01689002
• 类别：ph
• 出版时间：11 June 2008
• 卷：591
• 期：1
• 页码：300-305
• 文件大小：1351 K

摘要

Monte Carlo simulations have become crucial tools in many fields of X-ray imaging. They help to understand the influence of physical effects such as absorption, scattering and fluorescence of photons in different detector materials on image quality parameters. They allow studying new imaging concepts like photon counting, energy weighting or material reconstruction. Additionally, they can be applied to the fields of nuclear medicine to define virtual setups studying new geometries or image reconstruction algorithms. Furthermore, an implementation of the propagation physics of electrons and photons allows studying the behavior of (novel) X-ray generation concepts. This versatility of Monte Carlo simulations is illustrated with some examples done by the Monte Carlo simulation ROSI. An overview of the structure of ROSI is given as an example of a modern, well-proven, object-oriented, parallel computing Monte Carlo simulation for X-ray imaging.