以XF型医用诊断X射线剂量仪为治疗水平电离室剂量计校准系统中的监测仪器,对此监测仪器进行了两年多的监测、观察及线性回归分析处理,得监测值的线性相关系数r>0999999,标准偏差s为(20～100)×10-4Rmin(1R=2.58×10-4Ckg);标准值与监测值的比值平均为05224,比值的单次测量相对标准偏差sr为067%。这表明以XF型医用诊断X射线剂量仪作为监测仪是稳定可靠的。 To XF-based medical diagnostic X-ray dosimeter for the treatment of horizontal ionization chamber dosimeter calibration system in the monitoring equipment, the monitoring equipment for more than two years of monitoring, observation and linear regression analysis and processing, the monitoring value of the linear correlation coefficient r > 0999999, the standard deviation s was (20 ~ 100) × 10-4Rmin (1R = 2.58 × 10-4Ckg). The average value of standard value and monitoring value was 05224, and the relative standard deviation sr of the ratio was 067%. This shows that the use of XF X-ray diagnostic dosimeter as a monitor is stable and reliable.