Observation of magnetic resonances in electron clouds in a positron storage ring

Authors :: F. Cooper
B. Kuekan
M.T.F. Pivi
D. Kharakh
R.E. Kirby
Johnny S. T. Ng
Tor Raubenheimer
C.M. Spencer
Lanfa Wang
F. K. King
Source :: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 621:33-38
Publication Year :: 2010
Publisher :: Elsevier BV, 2010.
Abstract: The first experimental observation of magnetic resonances in electron clouds is reported. The resonance was observed as a modulation in cloud intensity for uncoated as well as TiN-coated aluminum surfaces in the positron storage ring of the PEP-II collider at SLAC. Electron clouds frequently arise in accelerators of positively charged particles, and severely impact the machines performance. The TiN coating was found to be an effective remedy, reducing the cloud intensity by three orders of magnitude.

Subjects :: Physics
Nuclear and High Energy Physics
Orders of magnitude (temperature)
Resonance
Particle accelerator
Electron
Charged particle
law.invention
Positron
law
Physics::Accelerator Physics
High Energy Physics::Experiment
Atomic physics
Collider
Instrumentation
Astrophysics::Galaxy Astrophysics
Storage ring

ISSN :: 01689002
Volume :: 621
Database :: OpenAIRE
Journal :: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Accession number :: edsair.doi...........86167c0bab5a4f52adebdd78249a2267
Full Text :: https://doi.org/10.1016/j.nima.2010.04.052

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