The experimental program for high pressure gas filled radio frequency cavities for muon cooling channels

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Journal of Instrumentation, ISSN: 1748-0221, Vol: 13, Issue: 1, Page: P01029-P01029

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Freemire, Ben; Chung, Moses; Hanlet, Pierrick M.; Johnson, Rolland P.; Moretti, Alfred; Torun, Yagmur; Yonehara, Katsuya
IOP Publishing
Physics and Astronomy; Mathematics; Physics - Accelerator Physics; Accelerator Subsystems and Technologies; Acceleration cavities and magnets super-conducting (high-temperature superconductor; radiation hardened magnets; normal-conducting; permanent magnet devices; wigglers and undulators)
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article description
An intense beam of muons is needed to provide a luminosity on the order of 10 cms for a multi-TeV collider. Because muons produced by colliding a multi-MW proton beam with a target made of carbon or mercury have a large phase space, significant six dimensional cooling is required. Through ionization cooling - the only cooling method that works within the lifetime of the muon - and emittance exchange, the desired emittances for a Higgs Factory or higher energy collider are attainable. A cooling channel utilizing gas filled radio frequency cavities has been designed to deliver the requisite cool muon beam. Technology development of these RF cavities has progressed from breakdown studies, through beam tests, to dielectric loaded and reentrant cavity designs. The results of these experiments are summarized.