... tumor patients developed in 1980. Brief introduction :High Dose Rate γ-ray Remote Control Afterloading system,is a new kind of treatment equipment ... former afterloading units,such as low resource dose rate,low accuracy,long treatmenttime,radiolesion to employees.It enlarges the application of ... and out is less than 5 seconds.4)Time resident accuracy is 0.1 second.5)Various interlock systems to guarantee ...