Bremsstrahlung radiation.
When the high speed electrons are passes by the nucleus , it is decelerated resulting in loss of kinetic energy of electrons and the loss of kinetic energy Is converted into x-ray is called Bremsstrahlung x-ray.
When the electrons are pass near the nucleus. The nucleus has positive charged and electrons has negative charged. The negative charged attracted at the positive charged. The electron is attached towards the nucleus and thus deflected from their original direction. The electron loss their energy and slow down when it’s direction changes. The kinetic energy lost by the electron is emitted directly in the form of photons of radiation. The x-ray produced by this process is called Bremsstrahlung radiation or general radiation.