PURPOSE: A proton treatment device installed in a building is provided to reduce installation costs by simplifying a device for manufacturing a vertical beam and to increase the available area of a building.CONSTITUTION: A proton treatment device installed in a building comprises: a proton accelerator (100) and a treatment table (300) which are arranged in different floors and a proton irradiator for irradiating a proton beam emitted from the proton accelerator to the treatment table. The proton irradiator comprises a 90° bipolar electromagnet for changing the progressive direction of the proton beam emitted from the proton accelerator and a nozzle (210) which penetrates a wall between the different floors and irradiates the proton beam to the treatment table. The nozzle comprises an inlet for receiving the proton beam and an outlet for irradiating the proton beam to the treatment table. The outlet is located with an interval from the treatment table. The treatment table is movable so that the proton beam can be irradiated to the tumor position of a patient.COPYRIGHT KIPO 2013[Reference numerals] (100) Accelerator본 발명은 건물에 설치되는 양성자 치료기에 있어서, 서로 다른 층에 배치된 양성자 가속기와 치료대, 및 상기 양성자 가속기에서 방출된 양성자 빔을 상기 치료대에 조사하는 양성자 조사부를 포함하는 양성자 치료기를 개시한다.
