1. EnEfficient RF Sources Workshop. June 2014 I. Syratchev X-band high RF power testing activity at CERN I.Syratchev

2. EnEfficient RF Sources Workshop. June 2014 I. Syratchev CLIC Project Implementation Plan 2012-16 S. Steinar, https://indico.cern.ch/conferenceDisplay.py?confId=239376

3. EnEfficient RF Sources Workshop. June 2014 I. Syratchev XBOX1 In operation XBOX2 Under installaton XBOX3 In reparation PS cafeteria XBOX RF lab XBOX’es on the CERN map

4. EnEfficient RF Sources Workshop. June 2014 I. Syratchev XBOX1 is up and running for almost 2 years TD26R05CC

5. EnEfficient RF Sources Workshop. June 2014 I. Syratchev XBOX1 operator displays Automatically controls incident power to structure. Short term: +10kW steps every 6 min and -10kW per BD event. Long Term: Measures BDR (1MPulse moving avg.) and will stop power increase if BDR too high. Intelligent LLRF control and acquisition system:  Automatized structure conditioning protocol provides operation at the prescribed saturated breakdown trip rate.  Online adjustment of the PC individual cavities frequencies to guaranty low reflection and flat top of the compressed pulse.  Logging all breakdown events and other conditioning statuses. Core XBOX1 gamers: Ben Woolley (PhD. Lancaster) Alberto Degiovanni (Fellow, CERN) Joseph Tagg (Eng. ‘National instruments’/CERN) Technical support: Luka Timeo (CERN) Stephane Rey (CERN)

6. EnEfficient RF Sources Workshop. June 2014 I. Syratchev 100 MV/m Full-fledged CLIC accelerating structure TD26R05CC build by CERN is successfully processed in XBOX1 up to 107 MW/m unloaded accelerating gradient at 250 ns pulses. We have started now study of breakdown rate evolution at the fixed (100 MV/m) gradient. CLIC XBOX1 05.12.2013 ~7x10 -5 BrD/pulse ~2x10 -5 BrD/pulse

7. EnEfficient RF Sources Workshop. June 2014 I. Syratchev The first commercial (CPI) 50 MW 12 GHz klystron is now in operation in XBOX#1 As it looked like during the commissioning at SLAC…

8. EnEfficient RF Sources Workshop. June 2014 I. Syratchev And now at XBOX#1…

9. EnEfficient RF Sources Workshop. June 2014 I. Syratchev CPI#1 klystron recent processing history

10. EnEfficient RF Sources Workshop. June 2014 I. Syratchev XBOX 2

11. EnEfficient RF Sources Workshop. June 2014 I. Syratchev Klystron XL5 RF pulse compressor Inside of the test bunker

12. EnEfficient RF Sources Workshop. June 2014 I. Syratchev PXI (LabVIEW) based LLRF fox XBOX2 is validated and available Glossary: PXI - PCI eXtensions for Instrumentation PCI - Peripheral Component Interconnect

13. EnEfficient RF Sources Workshop. June 2014 I. Syratchev XBOX 3 …an intelligent way to convert repetition rate into greater number of testing slots…

14. EnEfficient RF Sources Workshop. June 2014 I. Syratchev Klystrons commutation using LLRF phase triggers. By RF phase manipulation of klystrons (each running at 400 Hz) we can established 4 testing slots running at 100 Hz each.

15. EnEfficient RF Sources Workshop. June 2014 I. Syratchev

16. EnEfficient RF Sources Workshop. June 2014 I. Syratchev 3.5 µs -> 400 ns 11 22 V1 V2 PhM AM PC, Q 0 =1.77x10 5 Load Power Time, ns Simulation Measured Phase modulation Phase-to amplitude modulation Making CLIC pulse shape with two klystrons Incident phase modulation Incident amplitude modulation Compressed pulse Manipulating the RF pulse using phase modulation of the klystrons pair and Pulse Compression.

17. EnEfficient RF Sources Workshop. June 2014 I. Syratchev 4 turn-key 6 MW, 11.9942 GHz power stations (klystron/modulator) have been ordered from industry. The first unit is scheduled to arrive at CERN in October 2014. The full delivery will be completed before July 2015. Peak power: 6 MW Beam Voltage: 150 kV Beam current: 90 A Average power: 12.4 kW Efficiency: 47.5%

18. EnEfficient RF Sources Workshop. June 2014 I. Syratchev Modified K1 ScandiNova modulator Modulator parameters (max.) for 6 MW Toshiba klystron Peak RF power: 8.0 MW Pulsed voltage: 175 kV Pulse current: 115 A Average power: 50 kW Pulse length (flat): 5  sec Rep. rate: 400 HZ 1.6 m 1.3m  Doubled width oil tank. To facilitate installation of the Toshiba klystron which has rather wide (  0.7 m) solenoid.  Additional cabinet (comes for free). It can be used for Klystron RF driver amplifier, Solenoid PS, Ion Pump PS etc.  New Control System that will simplify integration of external parts and offer a lot of new features.  Flexible design (klystrons positioning) to minimize the length of RF waveguide circuit: The illustration of new 2 cabinet concept that will be adopted for 6 MW Toshiba klystrons.

19. EnEfficient RF Sources Workshop. June 2014 I. Syratchev 3D layout/integration of XBOX3