The Effects and Possible Origins of Mains Ripple in the Vicinity of the Betatron Spectrum

With the advent of significant improvement in the sensitivity of observation of the betatron spectrum[1], the appearance of spectral lines at harmonics of the mains power frequency has been observed in the PS and SPS at CERN, the Tevatron at FNAL, and RHIC at BNL. These lines are potentially problem...

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Detalles Bibliográficos
Autor principal: Cameron, P
Lenguaje:eng
Publicado: 2005
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/924193
Descripción
Sumario:With the advent of significant improvement in the sensitivity of observation of the betatron spectrum[1], the appearance of spectral lines at harmonics of the mains power frequency has been observed in the PS and SPS at CERN, the Tevatron at FNAL, and RHIC at BNL. These lines are potentially problematic for accurate tune tracking and the implementation of tune feedback. We discuss the possible origins of these lines, and present data to support our discussion.

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