Study on the performance of X-ray machines used in K-fluorescent devices

Abstract

Since Roentgen discovered X-rays, X-rays have been widely used in medical diagnosis and industrial non-destructive testing. With the improvement of the performance of aviation technology and instrumentation, higher requirements have been set for the calibration of detectors. X-ray machine performance is very important for calibration. Tube voltage, tube current, and inherent filtration are important parameters of the X-ray machine and directly affect the image imaging quality and radiation dose. Here, the voltage performance of the X-ray machine was measured using HPGe detector. Measure the tube voltage of the X-ray machine using the end of the spectrum method, it is shown that the performance of the X-ray machine shows the tube voltage within ±2%. Measurement of the linearity of the X-ray tube current and current stability using the PTW30013 ionisation chamber. The relative deviation of the actual measured tube current is 0.08%. The inherent filtration of the X-ray machine was measured by the half-value layer method, and the inherent filtration was 0.058 mm Al. The inherent filtration of the K-fluorescent device was measured to be 1.487 mm Al.

Keywords

• diagnostic radiography
• dosimetry
• x-ray tubes
• ionisation chambers
• calibration
• germanium radiation detectors
• ptw30013 ionisation chamber
• hpge detector
• medical diagnosis
• k-fluorescent devices
• x-ray tube current
• inherent filtration
• tube voltage
• x-ray machine performance