Barquero R, Méndez R, Martí-Climent J M, Quincoces G
Hospital Universitario Rio Hortega de Valladolid, E-47010 Valladolid, Spain.
Radiat Prot Dosimetry. 2007;126(1-4):477-81. doi: 10.1093/rpd/ncm096. Epub 2007 May 15.
Neutron organ equivalent doses, effective doses and dose equivalents received inside a positron emission tomography vault room in a maximum credible accident have been estimated with the Monte Carlo code MCNPX. While an operator was inside the vault room of a Cyclone 18/9 IBA cyclotron, this was producing (18)F with 30 muA proton current in the target and the operator had to activate a stopped emergency device placed on the wall. MC simulation of the cyclotron vault were carried out to estimate the organ and tissue equivalent doses in a mathematical male mannequin simulating the operator facing the wall on which the emergency device is placed. Doses were calculated at two emergency devices for each one of the two targets of the cyclotron, which were able to produce (18)F. The maximum effective dose in the mannequin was 6.70 Sv/h and the maximum organ equivalent dose was 18.47 Sv/h in spleen.
使用蒙特卡罗代码MCNPX估算了在最大可信事故中，正电子发射断层扫描保险库室内所接受的中子器官等效剂量、有效剂量和剂量当量。当一名操作员在IBA Cyclone 18/9回旋加速器的保险库室内时，该回旋加速器在靶中以30 μA的质子电流产生（18）F，且操作员必须启动放置在墙上的停止运行的应急设备。对回旋加速器保险库进行了蒙特卡罗模拟，以估算在模拟面对放置应急设备墙壁的操作员的数学男性人体模型中的器官和组织等效剂量。针对回旋加速器能够产生（18）F的两个靶中的每一个，在两个应急设备处计算了剂量。人体模型中的最大有效剂量为6.70 Sv/h，脾脏中的最大器官等效剂量为18.47 Sv/h。
