In this paper, potential of diagnostics with the use of
Kα radiation for an energy deposition process from an intense
ion-beam to background plasma is considered quantitatively.
Kα radiation is a good candidate for the purpose. The
wavelength of Kα radiation is varied according to the charge
state of an emitter atom, and the diagnostics spatially resolved with
radiations from various kinds of charge states can give us a profile of
plasma temperature in a target material. For the calculation of
Kα yield, an atomic population kinetics code is developed,
and the result shows that Kα radiation has potential to get
information of a plasma profile heated by an intense ion-beam.