Keyword: heavy-ion
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MOB4CO04 Design of the Room-Temperature Front-End for a Multi-Ion Linac Injector ion, rfq, linac, light-ion 73
  • A.S. Plastun, Z.A. Conway, B. Mustapha, P.N. Ostroumov
    ANL, Argonne, Illinois, USA
  Funding: Work supported by the U.S.DOE, Office of Science, Office of Nuclear Physics, contract DE-AC02-06CH11357. This research used resources of ANL's ATLAS, which is a DOE Office of Science User Facility.
A pulsed multi ion injector linac is being developed by ANL for Jefferson Laboratory's Electron Ion Collider (JLEIC). The linac is designed to deliver both polarized and non polarized ion beams to the booster synchrotron at energies ranging from 135 MeV for hydrogen to 43 MeV/u for lead ions. The linac is composed of a 5 MeV/u room temperature section and a superconducting section with variable velocity profile for different ion species. This paper presents the results of the RF design of the main components and the beam dynamics simulations of the linac front-end with the goal of achieving design specifications cost-effectively.
slides icon Slides MOB4CO04 [2.545 MB]  
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MOPOB62 SRF Half Wave Resonator Activities at Cornell for the RAON Project cavity, ion, SRF, pick-up 211
  • M. Ge, F. Furuta, T. Gruber, S.W. Hartman, C. Henderson, M. Liepe, S. Lok, T.I. O'Connell, P.J. Pamel, J. Sears, V. Veshcherevich
    Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA
  • J. Joo, J.-W. Kim, W.K. Kim, J. Lee, I. Shin
    IBS, Daejeon, Republic of Korea
  The RAON heavy-ion accelerator requires ninety-eight 162.5MHz Half-Wave-Resonators (HWR) with a geometrical β=0.12. Cornell University will test a prototype HWR as well as develop a frequency tuner for this cavity. In this paper we report on the progress in designing, fabricating, and commissioning of new HWR preparation and testing infrastructure at Cornell. The HWR infrastructure work includes new input and pick-up couplers, a modified vertical test insert with a 162.5MHz RF system, a new High-Pressure-Water-Rinsing (HPR) setup, and a modified chemical etching system.  
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WEPOA03 Synchrotron Oscillation Derived From Three Components Hamiltonian ion, synchrotron, betatron, closed-orbit 690
  • K. Jimbo
    Kyoto University, Kyoto, Japan
  • H. Souda
    Gunma University, Heavy-Ion Medical Research Center, Maebashi-Gunma, Japan
  The Hamiltonian, which was composed of coasting, synchrotron and betatron motions, clarified the synchro-betatron resonant coupling mechanism in a storage ring*. The equation for the synchrotron motion was also obtained from the Hamiltonian. It shows that the so-called synchrotron oscillation is an oscillation around the revolution frequency as well as of the kinetic energy of the on-momentum particle. The detectable synchrotron oscillation is a horizontal oscillation on the laboratory frame.
*K.Jimbo, Physical Review Special Topics - Accelerator and Beams 19, 010102 (2016).
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