Study on the property of high energy X-ray facility

Voltage, current and the inherent filtration were important elements of X-ray facility. It is necessary to measure the voltage, current and inherent filtration of the X-ray facility in order to establish a reference radiation quality or to evaluate the facility. We take an X-ray facility for example, the max voltage of the facility is 600 kV. We use a HPGe detector to measure the voltage of the facility, make out that the facility can reveal the voltage in a range of ±1%. We use a PTW30013 ionization chamber to measure the current. The relative standard deviation of the current is 0.097%. We use two methods to measure the inherent filtration of the facility. The average of the two methods is equivalent to 0.146 mm Al. (authors)