A γ-ray CT demonstrator based on fan-beam projection

LIU Fenglin CAI Yufang

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A γ-ray CT demonstrator based on fan-beam projection

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- A γ-ray CT demonstrator based on fan-beam projection
- NUCLEAR TECHNIQUES Vol. 32, Issue 9, (2009)
- 作者机构：
  
  重庆大学光电技术与系统教育部重点实验室ICT研究中心
- 作者简介：
- 基金信息：
  
  国家自然科学基金(60672098);教育部世界银行贷款招标项目(FET-GJ-011)资助
- DOI：
  CLC： TP391.41
- Published：01 September 2009
- 稿件说明：
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[1]刘丰林,蔡玉芳.一种广角扇束扫描γ射线工业CT实验仪[J].核技术,2009,32(09):711-715.

LIU Fenglin CAI Yufang. A γ-ray CT demonstrator based on fan-beam projection[J]. Nuclear techniques, 2009, 32(9): 711-715.
[1]刘丰林,蔡玉芳.一种广角扇束扫描γ射线工业CT实验仪[J].核技术,2009,32(09):711-715. DOI：

LIU Fenglin CAI Yufang. A γ-ray CT demonstrator based on fan-beam projection[J]. Nuclear techniques, 2009, 32(9): 711-715. DOI：

摘要

一种用于大学物理教学的广角扇束扫描γ射线工业CT实验仪已研制完成。通过实验可使学生了解和掌握CT基本理论、CT扫描数据采集过程、图像重建等知识。该仪器系统包括一个活度为7.4×108Bq的137Cs同位素放射源、五通道塑料闪烁体+光电倍增管"探测系统、一台计算机和一套图像重建处理软件。机械运动控制、数据采集软件用Visual C++开发

CT图像重建可使用系统提供的软件也可以由学生使用MATLAB编程。

Abstract

A γ-ray computed tomography(CT) demonstrator based on fan-beam projection has been designed and built for education purpose

in which the principles of CT

its data acquisition and image reconstruction is presented.The system consists of a 137Cs source of 7.4×108 Bq

five-channel detectors using plastic scintillator and photo multiplier tube(PMT)

a standard PC and an image processing and reconstruction software.The mechanics of the system is controlled and data is acquired by programs written in Visual C++.CT images are reconstructed using the presented software or MATLAB programs.

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Development of computed tomography instrument for college teaching

Reconstructing high resolution image from overlapped low resolution fan beam projections data

Related Author

LIU Fenglin LU Yanping WANG Jue

卢艳平

王珏

ZHANG Peng 1 GUO Minghuan 2 1

郭明焕

Related Institution

ICT Research Center of Chongqing University

重庆大学光电技术及系统教育部重点实验室ICT研究中心

Beijing Information Technology Institute, Beijing 100101) 2

西北大学

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