It makes the combination of the plural parameters in corpuscular ray irradiating such as radiation field and combination of lighting position precision variable, it designates that the corpuscular ray lighting device which can irradiate the various lighting variations is obtained as purpose. The charged particle beam which accelerated the accelerator (54) by (3) the lighting object (11) the corpuscular ray lighting device which is irradiated (58) being, the charged particle beam in order the scan electromagnet the scan electromagnet which (3) is scanned (1 and 2) with, the charged particle beam (3) in beam axial direction (1 and 2) with the lighting object (11) with to modify distance, the scan electromagnet (1 and 2) the scan electromagnet portable device which is moved it had (4).照射野及び照射位置精度の組み合わせ等の粒子線照射における複数のパラメータの組み合わせを可変にし、多様な照射バリエーションの照射を行うことができる粒子線照射装置を得ることを目的とする。加速器(54)により加速された荷電粒子ビーム(3)を照射対象(11)に照射する粒子線照射装置(58)であって、荷電粒子ビーム(3)を走査する走査電磁石(1、2)と、荷電粒子ビーム(3)のビーム軸方向における走査電磁石(1、2)と照射対象(11)との距離を変更するように走査電磁石(1、2)を移動する走査電磁石移動装置(4)とを備えた。
