医用诊断X射线非介入电流仪校准技术研究  

Research on non-invasive current meter calibration for medical diagnostic X-ray machine

作　　者：张从华[1] 李鹏[1] 刘志宏[1] 黄平[1] 龚岚[1] 蒋雪萍[2] 冯雪峰 徐桓[4] 周迎春[5] 

机构地区：[1]中国测试技术研究院,四川成都610021 [2]杭州市质量技术监督检测院,浙江杭州310019 [3]新疆维吾尔自治区计量测试研究院,新疆乌鲁木齐830011 [4]解放军总后勤部卫生部药品仪器检验所,北京100071 [5]深圳市计量质量检测研究院,广东深圳518055

出　　处：《中国测试》2014年第3期16-18,共3页China Measurement & Test

基　　金：国家科技支撑计划项目(2011BAI02B07);国家重大科学仪器设备开发专项(2013YQ090811)

摘　　要：为保障我国目前使用的X射线诊断光机曝光电流量值的准确性,开展医用诊断X射线非介入电流测量仪计量校准的研究,分析国内电流仪的校准方法和诊断辐射源检定规程,结合非介入电流仪测量的物理环境条件,提出非介入电流仪的计量指标要求、校准测试设备的技术要求。详细介绍开展校准工作的测试原理和数据处理方法,将诊断辐射源首次引入到电流仪的校准工作中作为触发信号,利用标准电流源,采用多台非介入电流测量仪进行实验研究和分析,证明校准工作的科学性、可操作性、有效性。In order to ensure the accuracy of the non-invasive current meter for the X-ray diagnostic x-ray machine in our country and regions, non-invasive current meter measurement and calibration are analyzed according to domestic calibration of current meters and diagnostic radiation verification procedures. Combined with physical environmental conditions of non-invasive current measured, technical requirements for the non-invasive current meter and its standard equipment are proposed. Detailed testing theory and data processing methods are described to carry out calibration. The radiation source was firstly introduced to the current instrument calibration work as a trigger signal. Using standard current source, many non-invasive current measurement instruments are researched and analyzed by experiment to prove the calibration work for science, operability and effectiveness.

关 键 词：非介入电流仪 医用诊断X射线机 检测 校准 计量 

分 类 号：TH774[机械工程—仪器科学与技术] TM933.1[机械工程—精密仪器及机械]