Driving type patient platform, control device for driving type patient platform, control program for driving type patient platform, and particle beam therapy system utilizing these items
A patient platform for making the position and posture of a diseased site coincide with those established by a treatment plan. Translation units translate a top board in the X, Y and Z directions respectively, in a fixed coordinate system. Rotation units rotate the top board in the θ, φ, and ξ directions respectively. A controller controls the translation units and rotation units, based on desired rotation center point and desired rotation angle. The controller has a rotation drive signal generation unit that generates a signal for moving the top board in a rotating manner from the reference state “a” of the translation units and the rotation units to a desired rotation angle and a translation drive signal generation unit that generates a signal for translating the translation units so the amount of translation movement, of the desired rotation center point, caused by the rotation movement is a predetermined value.
