2015-11-25¶

• MIPO.
• De-risk strategy for rf at Step V.
• Low level test at Fermilab, Low level tests at Daresbury or high power tests at Daresbury.
• Location at Daresbury : Plant room or security futures lab. Plant room best but crane presents issues.
• Andy : llrf at Fermilab a non-starter. Achieves very little.
• Chris : Moving amplifiers for locating in Security Futures lab a lot of work.
• All : Better in Pland room.
• Kevin : Automation and interlocking for amplifiers?
• Steve : possible to do more work.
• Shielding requirements for cavity tests?
• Kevin : Need qualified estimate for requirements.
• Tim : Amplifiers up running again next year? Level of system.
• Kevin : Andy to contact safety services at RAL to get estimate of shielding requirements.
• End of July deadline for decision on single cavity test...~ 3 weeks time.
• Agenda : Control.
• No temperature sensors on water at DL but do have at RAL.
• Need interlocking of all panel openings where there is a risk.
• Kevin : collect and monitor diagnostic data from all rack elements / circuit components.
• Chris : Heaters on both amplifiers - need to interlock / automate.
• Chris : Add network module to interface with Siemens PLCs.
• Change to alternative brand / model of PLC (Omron) for standardisation.
• EPICS, CANBUS.
• ISIS new system all PLCs.
• Pierrick : Use system similar to ISIS to ensure support available.
• Modified version of ISIS logic plan and new software.
• Kevin : Perform precision timing measurements at amps.
• MICE could run with 4 amplifiers and one set of rf cavities.
• Kevin : current aim is to run with 2.
• Andy : Can you tell us what control framework we should use (CANBUS / PLC).
• Need flow chart for control / interlocking of RF systems on MICE.
• Control (currently on interlocks) has ms resolution.
• Interlocking rack will be on mezzanine.
• Do we need feedback control to prevent overdriving RF cavities in a breakdown event.
• ISIS GUIs should be obtained and studied (Action on Tim).
• Andy : LLRF is a self contained device running Linux.
• Compile list of I/Os and formulate a plan / flowchart.