Experiences at the KEK B-factory vacuum system
نویسندگان
چکیده
منابع مشابه
Impedance Budget for the Kek B-factory
In this paper, we deal with impedances of various beamline elements in the KEK B-Factory. We will also discuss the power deposition generated by a beam in the form of the higher-ordermode (HOM) losses by interacting with its surroundings.
متن کاملDesign of Hom Power Absorbers for the Kek B-factory
The Higher-Order-Mode (HOM) power deposition is one of most crucial problems in the KEK B-factory to achieve a total beam current of 2.6A at the Low Energy Ring (LER). The estimate shows that the HOM power of about 20 kW can pass at any point in the arc of the ring. A particular worry is the Interaction Point (IP) where the maximum tolerable heat deposition of the IP chamber is only 200 W. Two ...
متن کاملOptical Beamlines for the KEK B-Factory Synchrotron Radiation Monitors
We have designed and constructed two optical beamlines for the KEK B-Factory synchrotron radiation monitors, one for each ring. Each beamline transports the SR beam 30-40 meters to an external optics hutch along two parallel paths. One path is used for direct imaging with adaptive optics[1], the other is used for transverse beam size measurements via SR interferometer[2] and longitudinal profil...
متن کاملSingle-beam Collective Effects in the Kek B-factory
In this paper, we deal with the issues of single-beam collective effects (the bunch lengthening and the transverse mode-coupling instability) and coupled-bunch beam instabilities due to RF cavities and the resistive-wall beam pipes in the KEK B-factory. The transit ion problem and coupled-bunch instabilities due to photo-electrons will be discussed in other publications.
متن کاملInteraction Region Vacuum System Design at the Pep-ii B Factory
The Interaction Region Vacuum System in the PEPII B-Factory at SLAC must produce average pressures in the 10 Torr range. Low beamline pressures will minimize the background radiation encountered by the BaBar Detector. A combination of copper and stainless steel vacuum chambers with continuous antechambers are used to make up the beam tubes. Linear Non-Evaporable Getter (NEG) pumps are used to p...
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ژورنال
عنوان ژورنال: Progress of Theoretical and Experimental Physics
سال: 2013
ISSN: 2050-3911
DOI: 10.1093/ptep/pts068