A press plate includes: a press section that is disposed to face towards an imaging face of an imaging table and is resiliently deformable； and a reaction force section that is capable of supporting the press section from the opposite side to the imaging face, that has a variable support force, and that adjusts the reaction force arising in the press section by changing the support force to the press section. The press plate may further includes a reaction force adjustment mechanism that changes the support force of the reaction force section.
