The entire process of photographic exposure with GGF50RF-H high-frequency X-ray machine

I only know that the mA of a high-frequency x-ray machine is equivalent to twice that of a commercial frequency machine. Even if the 50 mA high frequency you mentioned is correct, it is only equivalent to the effect of a 100 mA power frequency machine. Taking lumbar spine films is a bit overkill. High frequency C-arm X-ray machines generally say 3.

5KV 5KV, 5KV is fine.

I suspect that you are using a 50 mA power frequency mobile X-ray machine. Even a 100 mA power frequency mobile X-ray machine is useless for taking lumbar spine films. A 200 mA power frequency mobile Power frequency 100 mA high frequency = 200 mA Power frequency 200 mA high frequency = 300 mA power frequency

300 mA high frequency = 500 mA Power frequency 500 mA high frequency = 700 mA Installation frequency (=should be a divisor)