Yoon Yongsu, Kim Hyunji, Park MinSeok, Kim Jungsu, Seo Deoknam, Choi Inseok, Jeong Hoiwoun, Kim Jungmin
Department of Radiological Science, Korea University, Seoul 136-703, Republic of Korea.
Radiation Protection and Safety Section, Korea Institute of Radiological and Medical Sciences, Seoul 139-706, Republic of Korea.
Radiat Prot Dosimetry. 2014 Dec;162(3):421-6. doi: 10.1093/rpd/nct339. Epub 2013 Dec 18.
According to the International Electro-technical Commission, manufacturers of X-ray equipment should indicate the number of radiation doses to which a patient can be exposed. Dose-area product (DAP) meters are readily available devices that provide dose indices. Collimators are the most commonly employed radiation beam restrictors in X-ray equipment. DAP meters are attached to the lower surface of a collimator. A DAP meter consists of a chamber and electronics. This separation makes it difficult for operators to maintain the accuracy of a DAP meter. Developing a comprehensive system that has a DAP meter in place of a mirror in the collimator would be effective for measuring, recording the dose and maintaining the quality of the DAP meter. This study was conducted through experimental measurements and a simulation. A DAP meter built into a collimator was found to be feasible when its reading was multiplied by a correction factor.
根据国际电工委员会的规定，X射线设备制造商应标明患者可能受到的辐射剂量数量。剂量面积乘积（DAP）仪是可提供剂量指标的现成设备。准直器是X射线设备中最常用的辐射束限制器。DAP仪安装在准直器的下表面。一个DAP仪由一个腔室和电子元件组成。这种分离使得操作人员难以维持DAP仪的准确性。开发一个在准直器中用DAP仪取代镜子的综合系统，对于测量、记录剂量和维持DAP仪的质量将是有效的。本研究通过实验测量和模拟进行。当将内置在准直器中的DAP仪的读数乘以一个校正因子时，发现它是可行的。
