摘要 |
The present invention provides a particle therapy system including an irradiation compensating device made up of an energy absorber, a first collimator, and a second collimator for use in a short-range region. The irradiation compensating device is characterized by a mechanism for attaching and detaching the first energy absorber, first collimator, and second collimator. The first collimator is located upstream where the beam diameter is small with a view to suppressing the width of the compensating device, thereby contributing to making the compensating device small and lightweight. The second collimator is located downstream to improve penumbrae. |
申请人 |
HITACHI, LTD.;NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY |
发明人 |
TAKAYANAGI, TAISUKE;MATSUDA, KOJI;SHINAGAWA, RYOSUKE;NAKASHIMA, CHIHIRO;NISHIMURA, ARAO;SHIRATO, HIROKI;MATSUURA, TAEKO;SHIMIZU, SHINICHI;ONIMARU, RIKIYA;UMEGAKI, KIKUO |