| Paper |
Title |
Page |
| THPRI064 |
Plasma Chemistry in a High Pressure Gas Filled RF Test Cell for use in a Muon Cooling Channel |
3917 |
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- B.T. Freemire, Y. Torun
IIT, Chicago, Illinois, USA
- M. Chung, M.R. Jana, M.A. Leonova, A. Moretti, T.A. Schwarz, A.V. Tollestrup, Y. Torun, K. Yonehara
Fermilab, Batavia, Illinois, USA
- R.P. Johnson
Muons, Inc, Illinois, USA
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Filling an RF cavity with a high pressure gas prevents breakdown when the cavity is placed in a multi-Tesla external magnetic field. A beam of particles traversing the cavity, be it muons or protons, ionizes the gas, creating an electron-ion plasma which absorbs energy from the cavity. In order to understand the nature of this plasma loading, a variety of gas species, gas pressures, dopants, and cavity electric fields were investigated. Plasma induced energy loss, electron-ion recombination rates, ion-ion recombination rates, and electron attachment times were measured. The results for hydrogen, deuterium, helium, and nitrogen, doped with dry air will be presented.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2014-THPRI064
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