Positron emission particle tracking using a modular positron camera
Positron emission particle tracking using a modular positron camera
复制标题
使用模块化正电子相机进行正电子发射粒子跟踪
DOI：
10.1016/j.nima.2009.01.085
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发表时间：
2009
影响因子：
1.4
通讯作者：
Z. Yang
中科院分区：
文献类型：
--
作者：
D. Parker;T. Leadbeater;Xianfeng Fan;M. Hausard;A. Ingram;Z. Yang
1990年代初在伯明翰开发的正电子发射粒子跟踪技术，使放射性标记的示踪粒子在“正电子照相机”的探测器之间移动时能够被准确地跟踪。1999年，由一对MWPC组成的伯明翰正电子相机被一个由两个NaI（Tl）伽马相机头组成的系统所取代。该系统已成功地用于PEPT研究的范围广泛的颗粒和流体流动过程。最近，使用标准PET扫描仪（CTI ECAT 930和950系列）的多个锗酸铋（BGO）块探测器开发了模块化正电子相机。该相机具有灵活的几何结构，可移动，并能够提供高数据速率。本文介绍了其性能的简单模型，以及在一系列几何形状和应用中使用的初步经验。
The technique of positron emission particle tracking (PEPT), developed at Birmingham in the early 1990s, enables a radioactively labelled tracer particle to be accurately tracked as it moves between the detectors of a “positron camera”. In 1999 the original Birmingham positron camera, which consisted of a pair of MWPCs, was replaced by a system comprising two NaI(Tl) gamma camera heads operating in coincidence. This system has been successfully used for PEPT studies of a wide range of granular and fluid flow processes. More recently a modular positron camera has been developed using a number of the bismuth germanate (BGO) block detectors from standard PET scanners (CTI ECAT 930 and 950 series). This camera has flexible geometry, is transportable, and is capable of delivering high data rates. This paper presents simple models of its performance, and initial experience of its use in a range of geometries and applications.