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@InProceedings{maesaka:ibic2020-wepp31,
author = {H. Maesaka and H. Dewa and T. Fujita and T. Fukui and M. Masaki and S. Takano and K. Ueshima},
% author = {H. Maesaka and H. Dewa and T. Fujita and T. Fukui and M. Masaki and S. Takano and others},
% author = {H. Maesaka and others},
title = {{Design of the Beam Diagnostic System for the New 3 GeV Light Source in Japan}},
booktitle = {Proc. IBIC'20},
pages = {174--178},
paper = {WEPP31},
language = {english},
keywords = {diagnostics, electron, beam-diagnostic, storage-ring, betatron},
venue = {Santos, Brazil},
series = {International Beam Instrumentation Conference},
number = {9},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2020},
issn = {2673-5350},
isbn = {978-3-95450-222-6},
doi = {10.18429/JACoW-IBIC2020-WEPP31},
url = {https://www.jacow.org/ibic2020/papers/wepp31.pdf},
note = {https://doi.org/10.18429/JACoW-IBIC2020-WEPP31},
abstract = {We present a design overview of the beam diagnostic system for the new 3 GeV light source being constructed in Tohoku, Japan, and some test results obtained at SPring-8. This light source will generate brilliant x-rays from a high-quality electron beam having 1 nm rad emittance and 400 mA maximum stored current. To achieve the design performance and stability, we must monitor various beam parameters precisely. The beam position should be detected precisely: single-pass resolution < 0.1 mm (0.1 nC injected beam), COD resolution < 0.1 μm (more than 100 mA stored current), position stability < 5 μm for 1 month. We will use 112 button-type BPMs in the storage ring for these purposes. The stored beam current and beam size are also monitored with a DCCT and an x-ray pinhole camera. We will install a 3-pole wiggler to a straight section for the pinhole camera and other optical diagnostics. A stripline BPM and a stripline kicker will be installed to another straight section to suppress the beam instability and to measure betatron tune. We will use FPGA-based high-speed electronics for instability suppression with a bunch-by-bunch feedback method and real-time tune monitoring.},
}