Clerinx Peter, Buls N, Bosmans H, de Mey J
Department of Radiology, UZ Brussel, Vrije Universiteit Brussel, Laarbeeklaan 101, 1090 Brussels, Belgium.
Radiat Prot Dosimetry. 2008;129(1-3):321-7. doi: 10.1093/rpd/ncn148. Epub 2008 Apr 21.
Based on double-dosemeter readings, a conservative effective dose (E) estimation algorithm for lead apron workers in interventional radiology is proposed. Typical radiation conditions for various exposure geometries were simulated using the MCNPX 2.4.0 code. The simulation model consisted of an X-ray source and image intensifier, a patient phantom and a voxelised staff member phantom with lead apron. The effective staff dose and dosemeter readings for several positions of the worker were calculated. The effective dose to a physician, positioned in close proximity to the primary beam, can be estimated within a 10% underestimation margin by E = 1.64 H(p)(10)thorax,under + 0.075 H(p)(10)neck,over. The dose to the eye lens can be estimated by a dosemeter reading at collar level (R2 = 0.98).
基于双剂量计读数，提出了一种用于介入放射学中铅衣工作人员的保守有效剂量（E）估算算法。使用MCNPX 2.4.0代码模拟了各种照射几何条件下的典型辐射情况。模拟模型包括X射线源和影像增强器、患者体模以及带有铅衣的体素化工作人员体模。计算了工作人员几个位置的有效剂量和剂量计读数。对于紧邻原射线束的医生，有效剂量可通过E = 1.64 H(p)(10)thorax,under + 0.075 H(p)(10)neck,over在低估10%的范围内进行估算。晶状体的剂量可通过领口水平的剂量计读数来估算（R2 = 0.98）。
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