The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Miyamoto, A. AU - Sasaki, S. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Design of Diffraction Limited Light Source Ring with Multi-bend Lattice on a Torus-knot J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - 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. PB - JACoW CP - Geneva, Switzerland SP - 1560 EP - 1562 KW - lattice KW - emittance KW - quadrupole KW - dynamic-aperture KW - alignment DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-TUPWA060 UR - http://jacow.org/ipac2015/papers/tupwa060.pdf ER -