【摘要】 目前用于医用X射线CT检测的CT性能模体虽然种类型号繁多,但其质量参差不齐。且作为检测用标准器缺乏量值溯源的依据,为使CT检测设备的量值具有可追溯性,使得在检测工作中所用标准器在误差范围内一致,进而提高CT机的检测的一致性,我们对CT模体的检测和数据处理的方法进行了研究。更多还原

【Abstract】 Although there is all kind of CT performance models in x-ray CT measurement nowadays,but the quality of which have difference.They applied in measurement as standard equipment,lacking of the gist can be traced back to the origination.In order to enable the quality of CT measurement equipment to have traceability and to have the error of used standard equipment in check measure work within permissible range are accordable.Thus,we can improve accordance of CT’s measurement.We have researched the measurement of CT model and method of data process.更多还原