The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Liang, Z.K. AU - Chen, W. AU - Liu, K.F. AU - Liu, X. AU - Qin, B. AU - Zha, J. ED - Chrin, Jan ED - Schaa, Volker RW TI - Design of the Energy Selection System for Proton Therapy Based on GEANT4 J2 - Proc. of Cyclotrons2016, Zurich, Switzerland, September 11-16, 2016 C1 - Zurich, Switzerland T2 - International Conference on Cyclotrons and Their Applications T3 - 21 LA - english AB - Huazhong University of Science and Technology (HUST) has planned to build a proton therapy facility based on an isochronous superconducting cyclotron. The 250 MeV/500 nA proton beam is extracted from a super-conducting cyclotron. To modulate beam energy, an en-ergy selection system is essential in the beam-line. The simulation based on Geant4 has been performed for the energy selection system and its result will be discussed in this paper. This paper introduces the variation rules of the beam parameters including the beam energy, beam emit-tance, energy spread and transmission. The degrader's gap and the twiss parameter are proven to be effective ways to reduce the emittance after degrader. PB - JACoW CP - Geneva, Switzerland SP - 30 EP - 32 KW - emittance KW - proton KW - simulation KW - cyclotron KW - scattering DA - 2017/01 PY - 2017 SN - 978-3-95450-167-0 DO - 10.18429/JACoW-Cyclotrons2016-MOD01 UR - http://jacow.org/cyclotrons2016/papers/mod01.pdf ER -