|WEPH018 加速器応用・産業利用 7月31日 百周年時計台記念館 国際交流ホール 13:30-15:30|
|Mass analyzer system oriented for simultaneous cancer treatment with imaging by 11C|
○野田 章，片桐 健，北條 悟，杉浦 彰則，宮原 信幸，涌井 崇志，白井 敏之，野田 耕司（量研機構/放医研），グリーザー マンフレッド（マックスプランク原子核研究所）
|○Akira Noda, Ken Katagiri, Satoru Hojo, Akinori Sugiura, Nobuyuki Miyahara, Takashi Wakui, Toshiyuki Shirai, Koji Noda (QST/NIRS), Manfreed Grieser (MPIK)|
With the positron emission, 11C can be utilized for OPENPET (PET system composed of separate double rings). With the projectile fragment scheme, ion beam intensities up to 10E5 / pulse and insufficient S/N ratio could be attained. So as to improve such situation, we have investigated a re-acceleration of the produced 11C with a nuclear reaction. In the first step about 10E11 11CO2+ ions are produced by irradiating a target with 18 MeV protons of 18 microA, delivered from a cyclotron. After the 11C production the carbon dioxide is ionized to a single charge state (11CO2+) and then mass analyzed with the use of a magnet separator and then charge breeding to 11C4+/5+ with intensity of ~10E10 (Isotope Separator On-Line (ISOL)) will be done. Currently we are considering such a system consisting of a small size cyclotron combined with a 11C molecule production/separation system (CMPS) , a single charge ion source (SCIS) and a following analyzer. Mass separation with a resolution better than 1/44, will be realized with a double focusing dipole magnet. In the present paper we describe the mass analyzer for 11CO2+ separation consisting of a single double focusing magnet in detail.