The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Hae, T. AU - Aoki, T. AU - Hiramoto, H. AU - Hori, C. AU - Nakashima, Y. AU - Noda, F. AU - Seki, T. ED - Conradie, Lowry ED - De Villiers, John Garrett ED - Schaa, Volker RW TI - Compact Cotangential Orbit Accelerator for Particle Therapy J2 - Proc. of Cyclotrons2019, Cape Town, South Africa, 23-27 September 2019 CY - Cape Town, South Africa T2 - International Conference on Cyclotrons and their Applications T3 - 22 LA - english AB - A new type accelerator is being developed for the next generation particle therapy system. This accelerator utilizes a weak focusing DC magnetic field and a frequency modulated RF acceleration. Since a superconducting magnet is applicable to the main magnet, the accelerator can be compact. The accelerator characteristically has cotangential orbits to form an orbit-concentrated region. A beam is extracted from the region by using a new extraction method with the trans-verse RF kicker, peeler and regenerator magnetic fields. In this method an extracted beam energy can be controlled by applied time of the acceleration RF voltage without using an energy selection system (ESS). Intensity and pulse width of the extracted beam can be controlled by a voltage and / or a frequency pattern of the RF kicker. PB - JACoW Publishing CP - Geneva, Switzerland SP - 245 EP - 247 KW - extraction KW - kicker KW - septum KW - cavity KW - proton DA - 2020/06 PY - 2020 SN - 978-3-95450-205-9 DO - doi:10.18429/JACoW-Cyclotrons2019-TUP037 UR - http://jacow.org/cyclotrons2019/papers/tup037.pdf ER -