F. Gerigk, S. Ramberger, G. DeMichele , P. Tirado, M. Schuh, and R. De Prisco

Linac4

• Time table Linac4 structure tests
• Received cost estimate from Poland for PIMS construction, prices are confirmed
• Several upcoming meetings: CCDTL, L4 water supply, RF distribution

DTL

• Rounded corners for RF-port
• Dark spots should not drop Q that much
• Different Q values due to different measurement setups, new measurement after HP test planed
• In final version different helicoflex seals will be used and one gasket less. No big concern about Q values
• Conditioning with new drift tube is ongoing, L4 duty cycle reached

Cavity conditioning software

• Software in operation presented
• Stable operation for more than 24h, crashes are not due to software bugs (mainly network delay)
• Final version ready

PIMS

• Update on simulation values for different cells

HOM

• 3d simulations for TM₀₁₀ modes with HFSS 12 and MWS, good agreement (100kHz) for high beta cavity, difference of at least 500kHz for medium beta cavity
• Beam dynamic studies for recirculation electron linacs

-- MarcelSchuh - 19-Apr-2010