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Analysis of sextupole effects on β function beating in the SSRF storage ring
SSRF storage ring sextupole β function structural resonance stop-band
2009/8/17
In a storage ring, asymmetry of the β function with momentum deviation is the main reason for asymmetry of the dynamic aperture. This paper applies simulation method based on AT code in Matlab to inve...
New chromaticity compensation approach and dynamic aperture increase in the SSRF storage ring
SSRF storage ring chromaticity compensation nonlinear optimization dynamic aperture sextupole
2009/8/14
Strong chromatic sextupoles used to compensate natural chromaticities in the third generation light source storage ring usually reduce dynamic aperture drastically. Many optimization methods can be us...
Studies of closed orbit correction and slow orbit feedback for the SSRF storage ring
SSRF closed orbit distortion slow orbit feedback sorting alignment SOFB
2009/8/14
Details of the active ways to suppress Closed Orbit Distortion (COD), including bending magnet sorting and survey and alignment of the magnets, are discussed based on the studies of affections to the ...
Study of closed orbit response to magnet vibrations at the SSRF storage ring
closed orbit distortion magnet vibrations response function girder local correlation compensation effect betatron wavelength
2009/8/14
This paper presents the analytical and simulation responses of the closed orbit distortion in the SSRF storage ring to random and plane wave like magnet vibrations respectively. It is shown that the u...