PhenoPET — results from the plant scanner

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI:10.1109/NSSMIC.2016.8069506

M. Streun, K. Borggrewe, A. Chlubek, M. Dautzenberg, C. Degenhardt, R. Dorscheid, D. Durini, A. Erven, L. Jokhovets, L. Meessen, R. Metzner, O. Mülhens, H. Nöldgen, D. Pflugfelder, S. Reinartz, J. Scheins, B. Zwaans, S. Jahnke, U. Schurr, S. van Waasen

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引用次数: 2

Abstract

Within the German Plant Phenotyping Network (DPPN), we developed a novel PET scanner based on Philips Digital Photon Counters (DPCs, or dSiPMs = digital Silicon Photomultipliers). The scanner is dedicated for plant research and provides functional information on carbon transport within the plant. To this end the detector ring is oriented horizontally. It provides a Field-of-View of 18 cm dia. and 20 cm in height. The read-out electronics cluster hits from different photodetector pixels when they originate from the same scintillation event. These single events are written via USB 3.0 with up to 300 MB/s to the computer system. Crystal identification, energy discrimination and coincidence detection is realized in software. The spatial resolution in the center Field-of-View (CFOV) could be estimated to approx. 1.6 mm from measurements of a dedicated hot rod phantom. Preliminary sensitivity measurements result in a peak sensitivity of 4.04% (ΔE = 250-750 keV) in the CFOV and a Coincidence Resolving Time of 298 ps could be achieved.

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PhenoPET -来自植物扫描仪的结果

在德国植物表型网络(DPPN)中，我们开发了一种基于飞利浦数字光子计数器(DPCs，或dSiPMs =数字硅光电倍增管)的新型PET扫描仪。该扫描仪专门用于植物研究，并提供植物内碳运输的功能信息。为此，探测器环是水平定向的。它提供了一个18厘米直径的视野。高20厘米。当读出电子簇来自同一闪烁事件时，它们来自不同的光电探测器像素。这些单事件通过USB 3.0以高达300 MB/s的速度写入计算机系统。在软件中实现了晶体识别、能量鉴别和符合性检测。中心视场(CFOV)的空间分辨率可以估计为大约。距离专用热杆模体的测量值1.6毫米。初步灵敏度测量结果表明，CFOV的峰值灵敏度为4.04% (ΔE = 250-750 keV)，符合分辨时间为298 ps。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)

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