Recommendation for Mitigations of the Electron Cloud Instability in the ILC

Conference · Tue Dec 13 04:00:00 EST 2011

OSTI ID:1032749

Pivi, M T.F.; Wang, L; Demma, T; Guiducci, S; Suetsugu, Y; Shibata, K; Ohmi, K; Dugan, G; Palmer, M; Crittenden, J A; Harkay, K; Boon, L; Furman, M A; Vallgren, C Yin

Electron cloud has been identified as one of the highest priority issues for the international Linear Collider (ILC) Damping Rings (DR). An electron cloud Working Group (WG) has evaluated the electron cloud effect and instability, and mitigation solutions for the electron cloud formation. Working group deliverables include recommendations for the baseline and alternate solutions to the electron cloud formation in various regions of the ILC Positron DR, which is presently assumed to be the 3.2 km design. Detailed studies of a range of mitigation options including coatings, clearing electrodes, grooves and novel concepts, were carried out over the previous several years by nearly 50 researchers, and the results of the studies form the basis for the recommendation. The recommendations are the result of the working group discussions held at numerous meetings and during a dedicated workshop. In addition, a number of items requiring further investigation were identified during the discussions at the Cornell meeting and studies will be carried out at CesrTA, a test accelerator dedicated to electron cloud studies, and other institutions.

• Research Organization: SLAC National Accelerator Laboratory (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1032749
• Report Number(s): SLAC-PUB-14611
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
Accelerators
ACCPHY
COATINGS
DAMPING
DESIGN
ELECTRODES
ELECTRON DENSITY
ELECTRONS
INSTABILITY
LINEAR COLLIDERS
MITIGATION
POSITRONS
RECOMMENDATIONS