'Sey' diaporamas de présentation

Electron Cloud R&D for Future Linear Colliders Mauro Pivi (SLAC)

Electron Cloud R&D for Future Linear Colliders Mauro Pivi (SLAC). CERN Geneva, 20 March, 2008. We acknowledge the support of the European Community-Research Infrastructure Activity under the FP6 "Structuring the European Research Area" programme (CARE, contract number RII3-CT-2003-506395).

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Electron Cloud Growth & Mitigation: In-Situ SEY Measurements Retarding Field Analyzer Studies

Electron Cloud Growth & Mitigation: In-Situ SEY Measurements Retarding Field Analyzer Studies. W. Hartung , J. Calvey , C. Dennett, J. Makita, V. Omanovic for the C ESR TA Collaboration. Cesr TA Advisory Committee Meeting ? 11 September 2012. In-Situ Secondary Electron Yield Measurements.

456 views • 37 slides

Preliminary proposal for SEY studies on cold surfaces

Preliminary proposal for SEY studies on cold surfaces. Asena Kuzucan. The Electron-Cloud Effect. Electron cloud (EC) effects involve the interaction between high-energy beams and low-energy electrons produced in the vacuum chamber. There are 3 different sources of EC:

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Progress on coatings and grooves M.Taborelli Progress on C based coatings

Progress on coatings and grooves M.Taborelli Progress on C based coatings Progress on SEY instrument Progress on grooves. Progress on coatings. Effect of the sputtering gas used during carbon film deposition: Ne and Kr. Lowest yield up to now. Progress on coatings. measured at CERN

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Electron-Cloud Buildup: Summary

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Comparison of Yields of C, CN and TiN Next liners for SPS Lab system for SEY

Progress on coatings. Comparison of Yields of C, CN and TiN Next liners for SPS Lab system for SEY. S.Calatroni, P.Chiggiato, P.Costa Pinto, M.Taborelli. Liners for SPS: 1) TiZrV liner: ready 2) Low SEY coatings: TiN liner: ready C liner: ready by end of the week. TiZrV liner. 12. 0.

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Progress report on coatings for SPSU

Progress report on coatings for SPSU. Aging of a-C/Zr Degassing for various coating parameters Next liners in SPS Conditioning with electrons A different solution for the magnet coating. S.Calatroni, P.Chiggiato, P.Costa Pinto, M.Taborelli, I.Wevers, C.Yin Vallgren Special Guest: G.Rumolo.

198 views • 8 slides

Gold as a reference

Gold as a reference. Slade J., Igor V., Alex Z., Zeke I. XPS of gold before (left) and after (right) Ar ion sputtering/cleaning. Ar sputtering clearly increases SEY of gold The dose effect is still visible SEY stabilizes at a maximum of 1.7. Minimum Gun Emission. Maximum Gun Emission.

175 views • 7 slides