High Brightness Electron Beam Diagnostics and their ... - CASA
High Brightness Electron Beam Diagnostics and their ... - CASA
High Brightness Electron Beam Diagnostics and their ... - CASA
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R<br />
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Drive Laser<br />
Phase<br />
Cavity<br />
Gradient<br />
Function<br />
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1.5 GHz<br />
Voltage Controlled<br />
Phase Shifter<br />
Pickup Cavity<br />
measurement.<br />
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phaseatthephotocathodesurface.Thecorrespondingphaseofemissioninofthei-thmacropar- Figure3.13:BlockdiagramofthecompressioneciencyR55<strong>and</strong>momentumcompactionR56<br />
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ticleatthephotocathodesurfaceisrecorded<strong>and</strong>themacroparticlespopulatingthisuniformdistributionare\pushed"alongthebeamlines.Duringtrackingthespacechargesubroutineinparmela GP-IB<br />
isturnedo,<strong>and</strong>eachmacroparticleisassimilatedtoabunchcentroidofbunchesemittedatdifferentdrive-laserphase.Wethenrecordthephaseofarrivalioutatthedesiredpickupcavitiesin IOC/ VxWorks<br />
thesimulation.Thecouplefin,ioutgi=1;:::;Ngivesthephase-phasetransfermap<strong>and</strong>canreadily becomparedwiththeexperimentaldata.<br />
Ethernet<br />
Display<br />
EPICS Database<br />
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bepresentedinChapter6.Thegure3.14presentsameasurementofphase-phasebeamtransfer 3.4.5Measurementofhinjoutitransfermap functionbetweenthedrivelaserphotocathode<strong>and</strong>thethreedierentpickupcavitiesaforemen-<br />
Wewillnottreatmeasurementofphase-phasecorrelationfunctionintheinjectorsincetheywill NominalSet-upMeasurement<br />
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