Regarding the photoelectric effect:
It results in the production of Bremsstrahlung radiation
It results in the production of scattered photons, the energy of which is dependent on the initial photon energy (keV)
X-rays passing through barium cause greater scatter than those passing through human tissues
Ejection of a K-shell electron by an incident photon results in the production of an Auger electron
Auger electrons are produced as an indirect result of photoelectric radiation