1 / 12

Overview and Status of Assembling and Commissioning the RF-System at PETRA III

Learn about the ongoing assembly and commissioning of the RF system at PETRA III, including key parameters, changes made, and upcoming steps in the process.

hlori
Download Presentation

Overview and Status of Assembling and Commissioning the RF-System at PETRA III

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. Overview and Status of Assembling and Commissioning the RF-System at PETRA III Main parameter: Mashine: Beam Energy: E0 = 6 GeV Length: l = 2304 m Arc radius 191.73 m and 22.918 m Beam Current: I0 = 100 mA (200 mA) loss per turn Ul = 7.590 MeV Emittance (hor) ε = 1 nmrad ! Topping up • RF: • Frequency: fRF = 499.66 MHz • Beam Power (100mA): Pbeam = 759 kW (dipol, undulators, damping wigglers and HOM losses) • Circumferencial Voltage:Uc = 20 MV (in 12 7-cell cavities, power per coupler: 124 kW) • rf-Power (100mA): Prf = 1573 kW (2 transmitter á 786 kW) Stefan Wilke, DESY MHF-e

  2. the new experiment hall Around 850 concrete mixers came to DESY when the concrete monolithic slab (280 m x 24 m x 1 m) of the new PETRA III experimental hall was poured. It took nearly 60 hours without any interruption. 1m grounding: >6000 m3 concrete one of 34 moduls on girder Stefan Wilke, DESY MHF-e

  3. Changes at the RF system - removal of all 16 cavities and reinstallation of 12 cavities - assembly of new klystron modulators (HV power supplies instead of tubes) - removal of all old electronic and cables and replace by new technique (ELWIS) - reconstruction of the waveguide distribution system - development, test, assembly and commissioning of new control-, regulation- and diagnostictechnique - new high voltage power supply - commissioning of both 500 MHz systems • design and construction of feedback-cavities • assembly and commissioning of the feedback-system 2007-07-02 2008-09-27 Stefan Wilke, DESY MHF-e

  4. changes by time hall SL 2007-07-02 2007-09-13 2008-09-27 tunnel SL 2007-07-02 2007-11-16 2008-09-27 Stefan Wilke, DESY MHF-e

  5. transmitter power supply new crowbar outdoor equipment hall SL • data of 1 system: 80kV / 38A • work largely done • system tested as possible yet • tested with klystrons at 60kV / 20A klystrons Stefan Wilke, DESY MHF-e

  6. . RF-system of PETRA III prototype Transmitter Hall PETRA-SR Transmitter Hall PETRA-SL Phase- Shifter Waveguide-Shutter 800 kW Klystron 800 kW Klystron 800 kW Klystron 800 kW Klystron Normally each transmitter drives its own 6 cavities. Option to run one transmitter on all 12 cavities. 400 kW Load 400 kW Load MT MT 400 kW Load 400 kW Load 4-Port Circulator 4-Port Circulator 100 kW Load 100 kW Load 100 kW Load 100 kW Load 3 dB Hybr. Coupler 3 dB Hybr. Coupler WG-Shutter WG-Shutter WG-Shutter WG-Shutter Phase-Shifter Phase-Shifter Phase-Shifter Phase-Shifter 3 dB Hybr. Coupler 3 dB Hybr. Coupler Interconnection Line Waveguide Power Distribution Waveguide Power Distribution PETRA Tunnel 7-cell cavities 7-cell cavities Stefan Wilke, DESY MHF-e

  7. Waveguide Power Distribution from transmitter SL 3,0 4,8 6,0 7,0 7,8 to SR Interconnection Line Stefan Wilke, DESY MHF-e

  8. Feedback Kicker-Cavity 14 336 10 10 1315 MHz 60 6 1435 MHz - Modified DAΦNE / PSI design - 8 ports - tuneable: 1315 – 1435 MHz - bandwidth: 140 MHz - R/Q: 73 Ω - quality factor (unloaded): 230 - 8 pieces made at DESY Stefan Wilke, DESY MHF-e

  9. Feedback Kicker-Cavity Stefan Wilke, DESY MHF-e

  10. Feedback Kicker-Cavity Stefan Wilke, DESY MHF-e

  11. next steps • tunnel closed: 27st oct. (for magnet power supply tests) • testing the software system • commisioning of llrf system • interlock tests • conditioning of the cavities • high power tests • adjustment of waveguide system at high power • 2009: feedback adjustment with beam • beam for users Stefan Wilke, DESY MHF-e

  12. The MHF-e team thank you 2007-04-25 Stefan Wilke, DESY MHF-e

More Related