While irradiating the electric charge corpuscular ray to suffering eye exasmination, photographing the suffering inspection body in order to remedy the suffering inspection body of suffering eye exasmination and the like, try to be able decide the aim position of the electric charge corpuscular ray for remedy. As the range regulator 14 which adjusts the lighting position in the depth direction of suffering eye exasmination of the electric charge corpuscular ray which was irradiated from the charged particle radiation source, it makes transmit or makes the electric charge corpuscular ray pass, or, as the mirror 18 which reflects the radiation which radiates from the territory where the region of the suffering eye exasmination where the electric charge corpuscular ray was irradiated by the lighting of luminous, and excited radiate from the region of the suffering eye exasmination where the electric charge corpuscular ray was irradiated light, is included outside the axis of the electric charge corpuscular ray, the radiation which is reflected from the mirror is arranged in the position where incidence it is done, incidence being able to point to radiation, eyeground photographing which photographs the territory where it includes the region of the suffering inspection body where the electric charge corpuscular ray was irradiatedWe are constituted from device, 24 we are possible to decide the aim position of the electric charge corpuscular ray for remedy from the photographing picture.被検眼に荷電粒子線を照射しながら被検眼等の被検体を治療するために被検体を撮影して、治療用荷電粒子線の照準位置を決定することができるようにする。荷電粒子線源から照射された荷電粒子線の被検眼の深さ方向における照射位置を調整する飛程調整器14、荷電粒子線を透過または通過させると共に、荷電粒子線が照射された被検眼の部位から発光された発光、及び励起光の照射により、荷電粒子線が照射された被検眼の部位を含む領域から発光された発光を荷電粒子線の軸外に反射するミラー18、ミラーから反射された発光が入射される位置に配置されると共に、発光を入射させて荷電粒子線が照射された被検体の部位を含む領域を撮影する眼底撮影装置24から構成されており、撮影画像から治療用荷電粒子線の照準位置を決定することができる。