PROBLEM TO BE SOLVED: To appropriately set an irradiation condition with a radiation, depending on the presence/absence of an implant in a mamma.SOLUTION: An implant information acquisition unit 80 acquires implant information showing whether or not an implant is contained in a subject, a mamma M. An irradiation condition setting unit 82, on the basis of the implant information, sets a first irradiation condition C1 for a radiation with which the mamma M is irradiated in the case that an implant exists, and sets a second irradiation condition C2 for a radiation with which the mamma M is irradiated in the case that no implant exists. A radiation source control unit 70 drives an X-ray source 50 on the basis of an irradiation condition set by the irradiation condition setting unit 82 to irradiate the mamma M with a radiation.SELECTED DRAWING: Figure 4