Beam dynamics of 20 MeV MIRRORCLE-type tabletop storage ring |
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| Authors: | Md Monirul Haque Hironari Yamada Ahsa Moon Nobuhiro Miura |
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| Institution: | 1. Department of Photonics, Faculty of Science and Engineering, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan;2. Synchrotron Light Life Science Center, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan;3. Photon Production Laboratory Ltd, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan;1. Muons, Inc., Batavia 65010 IL, USA;2. Fermi National Accelerator Laboratory, Batavia 65010 IL, USA;3. Budker Institute of Nuclear Physics (BINP), Novosibirsk 630090 Russia;1. BRGM, Avenue Claude Guillemin, BP 36009, 45060 Orléans Cedex 2, France;2. LUNAM, Université du Maine, IMMM UMR CNRS 6283, Le Mans Cedex 9 France;3. ISTerre, Université Joseph Fourrier, BP 53, 38041 Grenoble Cedex 9, France;1. The University of Manchester, Manchester Materials Science Centre, Grosvenor Street, Manchester M13 9PL, United Kingdom;2. Studsvik Nuklear AB, SE 611 82 Nyköping, Sweden;3. Westinghouse Electric Company, Columbia, SC, United States;4. Westinghouse Electric Sweden AB, SE-72163 Västerås, Sweden;1. Department of Physics, University of Washington, Seattle, WA 98195-1560, USA;2. easyXAFS, LLC, Seattle, WA 98122, USA |
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| Abstract: | An experimental study on beam dynamics in MIRRORCLE-20, a tabletop storage ring of 15 cm orbit radius, was performed. Measurement of the infrared (IR) synchrotron light is the tool of this study. The IR emission is enhanced by a circular optics, named photon storage ring (PhSR), placed around the electron orbit, and is collected by a magic mirror associated with two plane mirrors in the storage ring. The measured average IR power in mid-IR region (λ < 50 μm) is ～59 mW. The observed stored beam current is about 1.2 A at maximum, which represents a record for a storage ring. The observed beam size is about 74 × 3 mm2. We conclude that this very long beam size is due to the large betatron oscillation of 2/3 resonance injection. |
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