Positron emission particle tracking and its application to granular media.
Positron emission particle tracking and its application to granular media.
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DOI：
10.1063/1.4983046
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发表时间：
2017-05
期刊：
影响因子：
--
通讯作者：
D. Parker
中科院分区：
文献类型：
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作者：
D. Parker
正电子发射粒子跟踪（PEPT）是一种用于跟踪单个放射性标记粒子的技术。即使粒子在密集的不透明系统中高速移动，也可以进行精确的3D跟踪。在许多情况下，跟踪颗粒系统中的单个颗粒提供了足够的信息来确定整个颗粒系统的时间平均行为。在一般性介绍之后，本文描述了用于记录PEPT数据的探测器系统（PET扫描仪和正电子相机）、用于标记粒子的技术以及用于处理数据的算法。本文集中在使用PEPT研究颗粒系统：重点主要是在伯明翰的工作，但也参考了其他中心的工作，并建议选择更广泛的多样化。
Positron emission particle tracking (PEPT) is a technique for tracking a single radioactively labelled particle. Accurate 3D tracking is possible even when the particle is moving at high speed inside a dense opaque system. In many cases, tracking a single particle within a granular system provides sufficient information to determine the time-averaged behaviour of the entire granular system. After a general introduction, this paper describes the detector systems (PET scanners and positron cameras) used to record PEPT data, the techniques used to label particles, and the algorithms used to process the data. This paper concentrates on the use of PEPT for studying granular systems: the focus is mainly on work at Birmingham, but reference is also made to work from other centres, and options for wider diversification are suggested.