J-PET 断层扫描仪的散射分数
医学物理
2019-05-22 v1 仪器与探测器
摘要
J-PET 合作组正在开发一种基于塑料闪烁体的新型正电子发射断层扫描系统。本文中,我们给出了散射分数的模拟结果,该参数是 NEMA-NU-2-2012 标准所定义的本底研究中的关键参数之一。我们详细阐述了事件选择方法,用以抑制那些伽马量子在体模中发生散射或在探测器中经历多次散射的事件。根据所施加的能量阈值不同,单层 J-PET 扫描仪的估计散射分数在 37% 到 53% 之间变化。
引用
@article{arxiv.1602.05402,
title = {Scatter fraction of the J-PET tomography scanner},
author = {P. Kowalski and W. Wiślicki and L. Raczyński and D. Alfs and T. Bednarski and P. Białas and E. Czerwiński and A. Gajos and B. Głowacz and J. Jasińska and D. Kamińska and G. Korcyl and T. Kozik and W. Krzemień and E. Kubicz and M. Mohammad and Sz. Niedźwiecki and M. Pałka and M. Pawlik-Niedźwiecka and Z. Rudy and M. Silarski and J. Smyrski and A. Strzelecki and A. Wieczorek and B. Zgardzińska and M. Zieliński and P. Moskal},
journal= {arXiv preprint arXiv:1602.05402},
year = {2019}
}
备注
14 pages, 5 figures