Both x ray foot switch and hand brake switch can control high frequency X-ray machine. High frequency machine is better than power frequency X-ray machine. The use of high frequency X-ray machine has the following advantages: low skin dose, high imaging quality, high imaging quality, real-time control, small volume and light weight of high voltage transformer. High frequency machine can also achieve ultra-short exposure and facilitate intellectualization.
The use of high frequency machine makes up for many unavoidable weaknesses of power high frequency machine: 1. huge volume and weight; 2. large ripple coefficient of output waveform, unstable X-ray dose, more soft rays; 3. poor accuracy and repeatability of exposure parameters.