ICFA mini-Workshop on "Mitigation of Coherent Beam Instabilities in particle accelerators" MCBI 2019

Session

Session 5

25 Sept 2019, 16:00

Zermatt, CH

Conveners

Session 5: Identification and reduction of instability sources

• Mikhail Zobov (INFN LNF)

32. Optimization design and impedance sources in low emittance rings

Ryutaro Nagaoka (Synchrotron SOLEIL)

25/09/2019, 16:30

85. Low-impedance design with example of kickers (including cables)

Carlo Zannini (CERN)

25/09/2019, 16:55

Recently unmatched terminations of single elements were identified
as responsible of instabilities in the CERN-PSB and CERN-LEIR. Impedance models are needed to estimate the impedance of similar devices and assess potential intensity limitations.
Circuital model and simulation techniques to include the effect of coupling to cables on the beam coupling impedance will be discussed. Moreover,...

34. Low-impedance beam screen design for future colliders

Sergey Arsenyev (CERN)

25/09/2019, 17:20

35. Impedance reduction for collimators

Alessio Mereghetti (CERN)

25/09/2019, 17:45

36. Surface effects for electron cloud

Roberto Cimino (INFN e Laboratori Nazionali di Frascati (IT))

25/09/2019, 18:30

37. Electron cloud effect mitigation with the laser ablation technique

Dr Oleg Malyshev (STFC Daresbury Laboratory)

25/09/2019, 18:55

83. Identification and reduction of space-charge and beam-beam effects

Yuri Alexahin (Fermilab)

25/09/2019, 19:20

Space-charge and beam-beam interaction affect both incoherent and coherent motion of particles potentially leading to instabilities and deterioration of the beam parameters. An overview of these phenomena will be given with an emphasis on the observable spectral characteristics and the mitigation methods of their harmful effects.