Just a quick FYI. The KV sets the energy level of the x-ray and the
current sets the quantity of x-rays produced. 25KV is right at the
threshold for x-ray generation capability of any significant level.
Hence the critical nature of the x-ray protect circuits.

The energy level would indicate how thick of an xray stopping material
would be required to protect you. At 25KV the lead in the glass is
enough to stop virtually all errant x-rays produced. The mA is the
amount of electrons flowing and the greater the electrons hitting the
surface, the greater the quantity of x-rays.

The dosimeters only measure the exposure to the quantity of x-rays, but
not the energy level. The higher the energy level the greater the
chance of causing a DNA mutation. The higher the dose over time, the
greater the chance of causing a DNA mutation.