光子计数探测器技术应用进展
Principle and application of photon counting detectors
张欣睿 1陈庶民 1王毅忠 1任钧儒 1蔡爱龙 1李磊 1闫镔1
作者信息
- 1. 战略支援部队信息工程大学信息系统工程学院 郑州 450001
- 折叠
摘要
光子计数探测器(PCD)是一种用于检测X射线光子的装置,能够将光子能量直接转化为电信号,从而实现对光子的计数和测量.基于PCD的能谱CT技术(PCD-CT)可以提供额外的能谱成像信息,改善成像质量,同时降低辐射剂量.相较于能量积分探测器(EID),PCD具有能量转换效率高、成像质量好、结构设计精巧、应用范围广等优势,在超低剂量CT、特定病症检验及工业检测中具有广阔的应用前景.综述PCD-CT在能谱CT成像中的应用,为其在临床医疗诊断与工业应用提供有益参考.
Abstract
Photon Counting Detector(PCD)is a device used to detect X-ray photons,which can directly convert the energy of photons into electrical signals to achieve photon counting and measurement.PCD-based energy spectrum computed tomography(PCD-CT)technology can provide additional energy spectral imaging information,and improve imaging quality while reducing radiation dose.Compared with energy integrating detectors(EID),PCD has advantages of high energy conversion efficiency,good imaging quality,exquisite structural design,and wide application range.It has broad application prospects in ultra-low-dose CT,specific disease diagnosis,and industrial inspection.The application of PCD-CT in spectral CT imaging was reviewed to provide a useful reference for its application in clinical medical diagnosis and industrial applications.
关键词
光子计数探测器(PCD)/计算机断层成像(CT)/能谱成像/临床诊断/工业应用Key words
Photon counting detector(PCD)/Computed tomography(CT)/Energy spectrum imaging/Clinical diagnosis/Industrial application引用本文复制引用
基金项目
国家自然科学基金(62101596)
国家自然科学基金(62271504)
国家自然科学基金(62201616)
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据