Overview and Status of Assembling and Commissioning the RF-System at PETRA III
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Stefan Wilke, DESY MHF-e 1 12th ESLS RF Meeting 1 st October, 2008 at DIAMOND Overview and Status of Assembling and Commissioning the RF-System at PETRA III RF RF : Frequency: Frequency: f f RF RF = 499.66 MHz = 499.66 MHz Beam Power Beam Power (100mA) (100mA): P P beam beam = 759 kW = 759 kW (dipol, undulators, damping wigglers and (dipol, undulators, damping wigglers and HOM losses) HOM losses) Circumferencial Voltage:U Circumferencial Voltage:U c = 20 MV = 20 MV (in 12 7-cell cavities, power per coupler: (in 12 7-cell cavities, power per coupler: 124 kW) 124 kW) rf-Power rf-Power (100mA) (100mA): P P rf rf = 1573 kW = 1573 kW (2 transmitter á 786 kW) (2 transmitter á 786 kW) Mashine : Beam Energy: Beam Energy: E 0 0 = 6 GeV = 6 GeV Length: Length: l = 2304 m l = 2304 m Arc radius Arc radius 191.73 m and 22.918 191.73 m and 22.918 m Beam Current: Beam Current: I 0 = 100 mA = 100 mA (200 mA) (200 mA) loss per turn loss per turn U l = 7.590 MeV = 7.590 MeV Emittance (hor) Emittance (hor) ε = 1 ε = 1 nmrad ! nmrad ! Topping up Topping up Main parameter:
description
Overview and Status of Assembling and Commissioning the RF-System at PETRA III. Main parameter:. Mashine : Beam Energy: E 0 = 6 GeV Length: l = 2304 m Arc radius191.73 m and 22.918 m Beam Current: I 0 = 100 mA (200 mA) loss per turnU l = 7.590 MeV - PowerPoint PPT Presentation
Transcript of Overview and Status of Assembling and Commissioning the RF-System at PETRA III
Stefan Wilke, DESY MHF-e112th ESLS RF Meeting
1st October, 2008 at DIAMOND
Overview and Status of Assembling and Commissioning the RF-System at PETRA III
RFRF::Frequency:Frequency: f fRFRF = 499.66 MHz = 499.66 MHzBeam Power Beam Power (100mA)(100mA):: P Pbeambeam = 759 kW = 759 kW (dipol, undulators, damping wigglers and (dipol, undulators, damping wigglers and
HOM losses)HOM losses)
Circumferencial Voltage:UCircumferencial Voltage:Ucc = 20 MV = 20 MV (in 12 7-cell cavities, power per coupler: 124 (in 12 7-cell cavities, power per coupler: 124
kW)kW)
rf-Power rf-Power (100mA)(100mA):: P Prfrf = 1573 kW = 1573 kW (2 transmitter á 786 kW)(2 transmitter á 786 kW)
Mashine: Beam Energy: Beam Energy: EE0 0 = 6 GeV= 6 GeV Length: Length: l = 2304 ml = 2304 m Arc radiusArc radius 191.73 m and 22.918 191.73 m and 22.918 mm Beam Current: Beam Current: II00 = 100 mA (200 mA) = 100 mA (200 mA) loss per turnloss per turn UUll = 7.590 MeV = 7.590 MeV Emittance (hor)Emittance (hor) ε = 1 nmrad !ε = 1 nmrad ! Topping upTopping up
Main parameter:
Stefan Wilke, DESY MHF-e212th ESLS RF Meeting
1st October, 2008 at DIAMOND
the new experiment hall
one of 34 moduls on girderone of 34 moduls on girder
1m grounding: >6000 m1m grounding: >6000 m33 concrete concrete
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.
Stefan Wilke, DESY MHF-e312th ESLS RF Meeting
1st October, 2008 at DIAMOND
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-e412th ESLS RF Meeting
1st October, 2008 at DIAMOND
changes by time
2007-07-02 2008-09-272008-09-272007-09-13
hall SLhall SL
2007-11-162007-11-162007-07-02
tunnel SLtunnel SL
2008-09-272008-09-27
Stefan Wilke, DESY MHF-e512th ESLS RF Meeting
1st October, 2008 at DIAMOND
transmitter power supply
klystrons
outdoor outdoor equipmeequipmentnt hall SLhall SL
new crowbarnew crowbar
• • data of 1 system: 80kV / 38Adata of 1 system: 80kV / 38A• • work largely donework largely done• • system tested as possible yetsystem tested as possible yet• • tested with klystrons at 60kV / 20Atested with klystrons at 60kV / 20A
Stefan Wilke, DESY MHF-e612th ESLS RF Meeting
1st October, 2008 at DIAMOND
RF-system of PETRA III
Waveguide Power Distribution
7-cell cavities
MT
Waveguide Power Distribution
400 kW Load
Interconnection Line
MT
.
WG-Shutter
100 kW Load
400 kW Load
400 kW Load
800 kW Klystron
4-Port
Circulator
Phase-Shifter
Transmitter Hall PETRA-SR Transmitter Hall PETRA-SL
PETRA Tunnel
3 dB Hybr. Coupler
Normally each
transmitter drives its
own 6 cavities.
Option to run one
transmitter on all 12 cavities.
800 kW Klystron
3 dB Hybr. Coupler
100 kW Load
WG-ShutterPhase-Shifter
3 dB Hybr. Coupler
3 dB Hybr. Coupler
Waveguide-Shutter
7-cell cavities
WG-ShutterWG-Shutter
800 kW Klystron
800 kW Klystron
4-Port
Circulator
100 kW Load 100 kW
Load
400 kW Load
Phase-Shifter
Phase-Shifter
Phase-
Shifter
prototypeprototype
Stefan Wilke, DESY MHF-e712th ESLS RF Meeting
1st October, 2008 at DIAMOND
Waveguide Power Distribution
3,0 4,8 6,0 7,0 7,8
to SR
from transmitter SL
Interconnection Line
Stefan Wilke, DESY MHF-e812th ESLS RF Meeting
1st October, 2008 at DIAMOND
Feedback Kicker-Cavity
60
1010336
- 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
1435 MHz
1315 MHz
6
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Stefan Wilke, DESY MHF-e912th ESLS RF Meeting
1st October, 2008 at DIAMOND
Feedback Kicker-Cavity
Stefan Wilke, DESY MHF-e1012th ESLS RF Meeting
1st October, 2008 at DIAMOND
Feedback Kicker-Cavity
Stefan Wilke, DESY MHF-e1112th ESLS RF Meeting
1st October, 2008 at DIAMOND
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-e1212th ESLS RF Meeting
1st October, 2008 at DIAMOND
The MHF-e team
2007-04-25
thank you
