1 / 19

X-band high RF power testing activity at CERN I .Syratchev

X-band high RF power testing activity at CERN I .Syratchev. CLIC Project Implementation Plan 2012-16 S. Steinar, https://indico.cern.ch/conferenceDisplay.py?confId=239376. XBOX’es on the CERN map. XBOX3 In reparation. XBOX2 Under installaton. XBOX1 In operation. PS cafeteria . XBOX

zasha
Download Presentation

X-band high RF power testing activity at CERN I .Syratchev

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. X-band high RF power testing activity at CERN I .Syratchev

  2. CLIC Project Implementation Plan 2012-16 S. Steinar, https://indico.cern.ch/conferenceDisplay.py?confId=239376

  3. XBOX’es on the CERN map XBOX3 In reparation XBOX2 Under installaton XBOX1 In operation PS cafeteria XBOX RF lab

  4. XBOX1 is up and running for almost 2 years TD26R05CC

  5. 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. 100 MV/m ~2x10-5BrD/pulse 05.12.2013 ~7x10-5BrD/pulse XBOX1 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

  7. 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. And now at XBOX#1…

  9. CPI#1 klystron recent processing history

  10. XBOX 2

  11. Klystron XL5 RF pulse compressor Inside of the test bunker

  12. PXI (LabVIEW) based LLRF fox XBOX2 is validated and available Glossary: PXI - PCI eXtensions for Instrumentation PCI - Peripheral Component Interconnect

  13. XBOX 3 …an intelligent way to convert repetition rate into greater number of testing slots…

  14. 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. PhM V1 1 AM V2 2 Making CLIC pulse shape with two klystrons Manipulating the RF pulse using phase modulation of the klystrons pair and Pulse Compression. Compressed pulse Incident amplitude modulation Load Incident phase modulation PC, Q0=1.77x105 3.5 µs -> 400 ns Phase modulation Measured Simulation Phase-to amplitude modulation Power Time, ns

  16. Peak power: 6 MW Beam Voltage: 150 kV Beam current: 90 A Average power: 12.4 kW Efficiency: 47.5% • 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.

  17. Modified K1 ScandiNova modulator • 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. Modulator parameters (max.) for 6 MW Toshiba klystron 1.6 m 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 1.3m

  18. 3D layout/integration of XBOX3

More Related