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https://doi.org/10.18429/JACoW-IPAC2015-TUPWA060
Title Design of Diffraction Limited Light Source Ring with Multi-bend Lattice on a Torus-knot
Authors
  • A. Miyamoto, S. Sasakipresenter
    HSRC, Higashi-Hiroshima, Japan
Abstract We proposed a torus knot type synchrotron radiation ring in that the beam orbit does not close in one turn but closes after multiple turns around the ring. Currently, we are designing a new ring based on the shape of a (11, 3) torus knot for our future plan ‘HiSOR-II.’ This ring is mid-low energy light source ring with beam energy of 700 MeV. Recently some light source rings are achieving very low emittance that reaches a diffraction limited light by adopting a multi-bend scheme to the arc section of the ring. It is not difficult for low-mid energy VUV-SX light source ring because the electron beam less than 10 nmrad can provide the diffraction limited light in the energy less than 10eV. On the other hand, the multi-bend lattice demands many families of the magnets and spaces to place them, therefore it is difficult to achieve diffraction limited emittance for compact SR ring. However, for the torus-knot type accumulation ring, it is not difficult to realize such a low emittance. We present the details of the designing procedure and the specifications of the ultra-low emittance light source ring having innovatively odd shape.
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Conference IPAC2015, Richmond, VA, USA
Series International Particle Accelerator Conference (6th)
Proceedings Link to full IPAC2015 Proccedings
Session Tuesday Posters (Washington)
Date 05-May-15   16:00–18:00
Main Classification 2: Photon Sources and Electron Accelerators
Sub Classification A05 - Synchrotron Radiation Facilities
Keywords lattice, emittance, quadrupole, dynamic-aperture, alignment
Publisher JACoW, Geneva, Switzerland
Editors Stuart Henderson (ANL, Argonne, IL, USA); Evelyn Akers (Jlab, Newport News, VA, USA); Todd Satogata (JLab, Newport News, VA, USA); Volker R.W. Schaa (GSI, Darmstadt, Germany)
ISBN 978-3-95450-168-7
Published June 2015
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cc Creative Commons Attribution 3.0