High Brightness Electron Beam Diagnostics and their ... - CASA

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6 550 500 4 450 2 400 4.6Summary 350 0 300 Inthischapterwehavepresentedthetechniqueswehavedevelopedtoperformemittancemeasure- 250 −2 mentintheinjectortransferline,aregionwherethebeamisstillinthespacechargeregime,andin Figure4.23:Anexampleofreconstructedphasespaceiso-contourdensity. 200 the38+MeVlinacandrecirculationregion.Wehaveshownthatundertheexpectedexperimental −4 conditionbothmeasurementcouldbeperformedwithsystematicerroroftheorderof10%. 150 100 −6 50 −8 −6 −4 −2 0 2 4 6 8 position (mm) divergence (mrad)
4.0 3.5 3.0 2.5 Figure4.24:Emittanceandbetatronfunctionversusthesolenoidexcitation. 2.0 1.5 1.0 0.5 0.0 230 240 250 260 270 280 290 300 310 Solenoid Magnetic field (Gauss) x x RMS x ( .mm.mr) (m)
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HighBrightnessElectronBeamDiagnosti
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eratedupto48MeVpriortothelasingsyst
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IthanktheCEBAFmachineoperators,with
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3.4MeasurementoftheLongitudinalResp
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5.6ZerophasingTechniqueforBunchLeng
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ListofTables 3.2Comparisonofcoecien
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ListofFigures 1.1Comparisonoftheexp
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3.11Momentumcompactionandnonlinearm
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4.18Overviewofthephasespacesampling
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5.16Interferogrammeasuredfordierent
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6.10Comparisonofthermstransversehor
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Chapter1 UVdomainandareplannedtogen
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space-chargeinthelowenergyregime,an
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!Vjitsthevelocity,and!Xjisthepositi
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equation boundarybetweenvacuumandam
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10 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
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1.0 0.8 0.6 0.4 0.2 E=10 MeV E=42 M
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00000000000000000000000000000000000
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harmonicwithproperchoiceoftheKvalue
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Bu(rms)0.28T ParameterValueUnit Nu
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2.7TheJeersonLabIRproject usedasexp
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Study TheFELdriveraccelerator:Latti
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ParameterValue x -0.178 x(m) 8.331
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Thepurposeofmeasuringthetransverser
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computedusingthelatticeset-upuseddu
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etatronexcitationaspicturedingure3.
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∆ x (mm), Corrector 0F00H ∆ x (
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1 0.5 0 spreadoftheparticlewassetto
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2 1 −5 −3 −1 1 3 5 k (m q −
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Experimentallythecalibrationcoecien
Page 62 and 63: tioned.FromthetransferfunctioninFig
Page 64 and 65: Pickup Experiment #2 #3 #4 Simulati
Page 66 and 67: Fromthesebothmeasurementitispossibl
Page 68 and 69: . . . . . . . . . . . . . . . . . .
Page 70 and 71: 10 5 Sext. ON Figure3.20:Eectofthes
Page 72 and 73: spaceabeamthatconsistsofNparticles,
Page 74 and 75: Asforthegeometricemittanceonecanden
Page 76 and 77: (a) ceramic radiator beam x-wire be
Page 78 and 79: and validundertheassumptionofaunifo
Page 80 and 81: 1000 900 800 700 Figure4.4:Steadyst
Page 82 and 83: Fraction of Beam enclosed within (%
Page 84 and 85: 5 2 2 3 4 5 6 7 8 9 10 0 10 5 2 Foi
Page 86 and 87: Actuator Inserts Foil and Mirror CI
Page 88 and 89: shortterm,touseasbeamdensitymonitor
Page 90 and 91: Alongwiththeseimplementedoperations
Page 92 and 93: whereiistheerrorontheithbeamsizemea
Page 94 and 95: Let'sassumethethinlensapproximation
Page 96 and 97: obtainedviathestatisticalanalysis.T
Page 98 and 99: 20 18 16 . 14 . 12 . Figure4.14:Rel
Page 100 and 101: 100 10 −3 10 −2 10 −1 10 that
Page 102 and 103: multislits mask (copper) Aluminum F
Page 104: TheReductionoftheSpaceChargeconditi
Page 107 and 108: . . . . . . . . . . . . . . . . . .
Page 109 and 110: Table4.7:Typicalsystematicerroronem
Page 111: 180 8 160 6 Figure4.22:Anexampleof2
Page 115 and 116: Characterization LongitudinalPhaseS
Page 117 and 118: concentrateonthebeamparametersinthe
Page 119 and 120: 1.1 1 mrad 0.9 5 mrad mainlyduetoth
Page 121 and 122: Population Population 100000 90000
Page 123 and 124: Theequation5.8yields: f()=jZ+1 11Xn
Page 125 and 126: presentanoutlineofthisproofbelow,an
Page 127 and 128: contrastintheCEBAFmachine,varyingas
Page 129 and 130: 1.5 1 correspondtothevarianceofveco
Page 131 and 132: Ε’ 2 B Mirror M 2 Ε2 Polarizer
Page 133 and 134: FinallyitisinterestingtonotethatFou
Page 135 and 136: Itsautocorrelationis:S(z)=8>:(1=w2)
Page 137 and 138: drivelaserwhereasin(A),suchoperatio
Page 139 and 140: expansionoftheBFFderivedinthischapt
Page 141 and 142: Asarstapproximation,wecanestimatetr
Page 143 and 144: errorpropagation8theoryappliedonEqn
Page 145 and 146: inducedbyspacechargeisnotaconcernin
Page 147 and 148: Golay Cell Signal (V) Golay Cell Si
Page 149 and 150: Golay Cell Ouput (V) Golay Cell Oup
Page 151 and 152: 150 100 5 4 Figure5.19:Energyspectr
Page 153 and 154: Figure5.23:picturaleectoflongitudin
Page 155 and 156: . .. .. . .. . . .. . .. . . .. . .
Page 157 and 158: σ x (m) x 10−3 5 4 3 2 1 0 0 5 1
Page 159 and 160: BeamDynamicsStudies Chapter6 undula
Page 161 and 162: x,y (mm) 6.0 4.8 3.6 2.4 1.2 x y 0.
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Space Charge over Emittance Ratio (
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numericalsolution[56].Thisapproxima
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0.03 . .... . .. ... . .. ..... . .
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ε x (mm−mrad) Nominal 6 4 2 cryo
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2.2 2 1.8 Figure6.10:Comparisonofth
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6 4 2 Figure6.12:\R55"transfermapfo
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10 1 5 10 0 500 1000 1500 2000 2500
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EnergySpread(%) BunchLength(mm) Par
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15 Effect of RMS energy Spread 10 F
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6.4.4BunchSelfInteractionviaCoheren
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100 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0
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Inthesecondseriesofrun,wewereableto
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Conclusion Chapter7 Therecirculator
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[2]Y.Shibata,T.Takahashi,T.Kanai,K.
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[29]J.-C.Denard,C.Bochetta,G.Traomb
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[65]B.C.Yunn,\ImpedancesintheIRFEL"
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TEM:transverseelectricmagnetic. TOF
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B.2Anoteonspacecharge Wedenetheslop
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B.3.3PARMELA FeaturesofJeersonLabVe
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Initialization MAIN Stop INPUT DECK
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C.0.6TheDispersionRelationsfor^S(!)
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have: Howeveritshouldbenotedthatweh
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FigureD.1:OverviewoftheRF-controlsy
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High Brightness Electron Beam Diagnostics and their ... - CASA

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