rf power linac - ijclab events directory (indico) · 2017. 3. 17. · pulse forming kly....
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RFPowerLinac
M.Omeich,LAL
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RFPowerforLinac
Modulator / KlystronTurnKey SystemMadebyScandinovaModulator type:K2-2Totalcost 1M€(Modulator +3Klystrons)Factory Acceptance Test:14/12/2016Delivery next month
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RFPowerforLinac
Parameters:
RFPeak Powermax.:40MWPeak Voltagemax.:330kVPeak Current max.:350AElectrical Peak Powermax.:92MWPulseWidth:6,2µSRep.Rate:50HzJitter:±4nSModular System
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RFPowerforLinac
Dimensions:1,5mX2mX2m
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RFPowerforLinac
Composition
Modulator-HVPowersupplies-PulseForming Units-PulseTransformer-auxiliairesSystems,control& measurement-Remote Control
Klystron-Thoshiba
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RFPowerforLinac
Modulateur
8 T
HVPS Step upTransformer
Auxiliairessystems,control,measurements &hardwareinterlock
LocalandRemote controlsystem
Kly. Accelerator.PulseForming
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RFPowerforLinacModulator Parts
HVPowersupply2HVcapacitor charging powersuppliesPulsewidth modulationat 25kHzControlofPWMbyFPGACommutation:resonating ½bridgeof2IGBTPower:25kWCharging rate:25kJ/sVoltagemax:1400VCurrent max:18AOpticalisolationcontroltoavoid noiseFinetunetosetthecapacitor at chargevalue
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ThomX RFPowerLinac
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RFPowerforLinacModulator Parts
PulseForming7Units dedicated forthepulseforming
Capacitor-energy storage:141µFpartieldischarge of5%Commutationelement:IGBT
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RFPowerforLinac
1- Capacitor-energy storage 4- PCBdriver2- Current measerment 5- Cooling3- PCBdriver
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RFPowerforLinacModulator Parts
PulseTransformerIt’s theKeycomponentofthemodulator
- Several primary windings &splitcorelow inductance&low voltageprimary
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RFPowerforLinac
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RFPowerforLinacModulator Parts
AuxiliairesSystems:-TimingetTriggering
Timinggeneration interne/externeOpticalisolationoftimingdistrib.
-Hardwareinterlock& MeasurmentsDynamic:Overcurrent;Overvoltage;etc…Static:Cooling;Acces;RadioprotectionExternal interrupt requird;etc…
-ControlSystemLocalandRemote
Modules
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RFPowerforLinacModulator Parts
AuxiliairesSystems forKlystron:-Heater powersupply
Voltage:20V Current:20A
-FocusMagnet (Solenoid )2 PSfor6windings
-RFPowersupplyAmpli400W3Ghz
-Vaccum (Ionpump )PowersupplyVoltage:3,5kV Current:1mA
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RFPowerforLinacKlystron
Klystron:ToshibaE37310RFpower(output):37,5MWRFpower(input):325WCathodeVoltage:285kVCathodeCurrent:308ACathodeHeater Current:17ARFPulseWidth:4,5µSRep.Rate:50HzEfficiency:42,9%Gain:50,6dBPerveance:2,02[µa/v 3/2]
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RFPowerforLinacModulator Factory Test
TheFATwas done from 14/12/16to16/12/16Modulator/KlystronrunninginHVmode(noRF)Allccswhere cheked out,longtimetest(8hours)
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RFPowerforLinacModulator Factory Test
RiseRate:346kV/µSFall Rate:278kV/µS
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RFPowerforLinacModulator Factory Test
Flattopduring pulse:1.2%Flattopduring 1µS:0.2%
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RFPowerforLinacRFNetwork
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RFPowerforLinacRFNetwork