Marzocchi O, Breustedt B, Mostacci D, Zankl M, Urban M
Karlsruhe Institute of Technology, Institut für Strahlenforschung, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein, Leopoldshafen, Germany.
Radiat Prot Dosimetry. 2011 Mar;144(1-4):339-43. doi: 10.1093/rpd/ncq319. Epub 2010 Nov 11.
A goal of whole body counting (WBC) is the estimation of the total body burden of radionuclides disregarding the actual position within the body. To achieve the goal, the detectors need to be placed in regions where the photon flux is as independent as possible from the distribution of the source. At the same time, the detectors need high photon fluxes in order to achieve better efficiency and lower minimum detectable activities. This work presents a method able to define the layout of new WBC systems and to study the behaviour of existing ones using both detection efficiency and its dependence on the position of the source within the body of computational phantoms.
全身计数（WBC）的一个目标是估算放射性核素的全身负荷，而不考虑其在体内的实际位置。为实现这一目标，探测器需放置在光子通量尽可能独立于源分布的区域。同时，探测器需要高光子通量，以便实现更高的效率和更低的最小可探测活度。本文提出了一种方法，该方法能够定义新的全身计数系统的布局，并利用探测效率及其对计算体模体内源位置的依赖性来研究现有系统的性能。
