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WEPME033 |
Search for New e-cloud Mitigator Materials for High Intensity Particle Accelerators |
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- R. Cimino, S.T. O'connor, A.L. Romano
INFN/LNF, Frascati (Roma), Italy
- V. Baglin, G. Bregliozzi, R. Cimino
CERN, Geneva, Switzerland
- M.R. Masullo
INFN-Napoli, Napoli, Italy
- S. Petracca, A. Stabile
INFN-Salerno, Baronissi, Salerno, Italy
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Electron cloud is an ubiquitous effect in positively charged particle accelerators and has been observed to induce unwanted detrimental impacts on beam quality, stability, vacuum etc. A great effort has been recently devoted to the search of new material morphology and/or coatings which can intrinsically mitigate beam instabilities deriving from electron cloud effects. In this context, we present some characterization of Cu foams, available from the market, and their qualification in terms of their vacuum behavior, impedance, secondary electron yield, gas desorption etc. More experimental effort is required to finally qualify foams as a mature technology to be integrated in accelerator environments. But, our preliminary results suggests that, when compatible with geometrical constrains, Cu foams can be utilized when low desorption yields are required and as e-cloud moderator in future particles accelerators.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2014-WEPME033
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