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The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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Distortion of Crabbed Bunch Due to Electron Cloud and Global Crabbing.

DE2008935693

Publication Date	2008
Personal Author	Wang, L.; Raubenheimer, T. O.; Cai, Y.
Page Count	4
Abstract	Crab cavities may be used improve the luminosity in colliding beam colliders with crab crossing. In a global crab crossing correction, only one crab cavity is installed in each ring and the crab cavities generate a horizontally titled bunch oscillating around the ring. The electron cloud in positively charged rings may distort the crabbed bunch and cause the luminosity drop. This paper briefly estimates the distortion of positron bunch due to the electron cloud with global crab and estimates the effect in the KEKB and possible LHC upgrades.
Keywords	Accelerators Electrons Clouds Colliding beams Cavities Luminosity Positrons Beam bunching
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200905
Contract Number	DE-AC02-76SF00515

Distortion of Crabbed Bunch Due to Electron Cloud and Global Crabbing.

Distortion of Crabbed Bunch Due to Electron Cloud and Global Crabbing.
DE2008935693

Publication Date	2008
Personal Author	Wang, L.; Raubenheimer, T. O.; Cai, Y.
Page Count	4
Abstract	Crab cavities may be used improve the luminosity in colliding beam colliders with crab crossing. In a global crab crossing correction, only one crab cavity is installed in each ring and the crab cavities generate a horizontally titled bunch oscillating around the ring. The electron cloud in positively charged rings may distort the crabbed bunch and cause the luminosity drop. This paper briefly estimates the distortion of positron bunch due to the electron cloud with global crab and estimates the effect in the KEKB and possible LHC upgrades.
Keywords	Accelerators Electrons Clouds Colliding beams Cavities Luminosity Positrons Beam bunching
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200905
Contract Number	DE-AC02-76SF00515