Technology Department 1 ELENA Fast Deflectors status Nicolas Voumard, Jan Schipper TE/ABT/EC TCM 17/11/2015 1/11

Technology Department ELENA Fast Deflectors control overview 2/11

Technology Department -Control side on platform above ELENA ring on four consecutive racks -Two generators per crate (PCU and HVPS), 5 crates + 1 for potential future transfer lines… -Three PXI systems (1 system can control up to four generators) -One touch panel for local control for all generators -One rack for PDC -One front-end computer ELENA Fast Deflector control side 3/11

Technology Department -Fast deflector generator -1: 1.2 uF high voltage storage capacitors OK -2: 11kV Behlke switches push-pull OK (pos and 6.5kV) -3: CAEN bipolar 8kV HVPS TBT in remote with PXI -4: 12kV earthing switches OK -5: Generator controller Partially tested -6: Pickups New version TBD To be tested connected to the tank ASAP with actual pickups, And by mid december with new pickups version. ELENA Fast Deflector Generator HV circuit overview /11 5

Technology Department ELENA Fast Deflector control side, PXI Controller 5/11

Technology Department ELENA Fast Deflector : elements production and testing ELEMENTSTATUSDONETO BE DONEDUE Generator BoxOngoing Cabled, TBT by end november Base plate mounted with HV switches, capacitors, resistors and relays. HV Cables with SHV-20 New Pickups, Controller board mounted (TBT) End of November Mid December With new pickups PXI ControllerComponents to be ordered Software mainly done by JS Jan did already most of the control and LabView implementation Validation, testing… HVPS control to be tested Front-end computer architecture TBD February 2016 Cabling from platform to generators OngoingCables pulled by EN-EL and connectors on the control side mounted Connectors on generator side to be mounted. Mid February 2016 Generator Controller Ongoing- EIS interface done (TBT) - Analog Receiver done (TBT) - Caen HVPS tested - Power Control Unit -> finish schematic and routing, - Control crate cabling - Three crates to be assembled Mid January 2016 Power Distribution Controller Nothing done (AA)March 2016 PXI interfaceOngoingBased on existing design (HG)Cabling to be defined.February 2016 Comissioning with beam scheduled for July /11

Technology Department ELENA Fast Deflector : safety concerns and commisionning - EIS -Prepare safety documentation -Define tests to be done (lab and on-site) -Define clearly which and how much fast deflectors to be connected to EIS -Safety discharge switches tested (Ross relays) -Prepare interlocks test procedure -Correct reaction of the system to every interlock EIS Interface card Based on BE-PO design - Commisionning / Installation -Prepare commisionning plan and strategy -Installation should be ready by April-May 2016 for the two ELENA ring extractions -Beam comissioning expected for July Transfer lines fast deflectors planed for /11

Technology Department ELENA Fast Deflector : high voltage pickups There is still work to be done to get a precise high voltage pickup as requested for this application to avoid oscillations. (flattop and platbottom stability at 0.1%) A new pickup design has been already designed, on the base of the North Star high voltage probe, including a 50 Ohms series resistor to adapt to the cable impedance, reorganization of the components in «star topology», ground plane on low voltage side, removed adjustable capacitor. OLD DESIGN NEW DESIGN 8/11

Technology Department ELENA Fast Deflector : +6kV OLD DESIGN North Star PVM-12 Cable reflexion due to pickup position 9/11

Technology Department ELENA Fast Deflector : -6kV OLD DESIGN North Star PVM-12 Cable reflexion due to pickup position 10/11

Technology Department ELENA Fast Deflector QUESTIONS ? 11/11