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

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∆ x (mm), Corrector 0F00H<br />

∆ x (mm), Corrector 0F04H<br />

x 10−3<br />

5<br />

0<br />

−5<br />

0<br />

x 10−3<br />

5<br />

20 40 60 80 100<br />

∆ y (mm), Corrector 0F00V<br />

x 10−3<br />

5<br />

0<br />

−5<br />

0<br />

x 10−3<br />

5<br />

20 40 60 80 100<br />

0<br />

0<br />

Figure3.7:Comparisonbetweentheexperimentaldataaftercorrection<strong>and</strong>thesimulatedlattice responseforthesixcorrectors(100meterscorrespondsapproximatelytotheendofthebackleg beamline).<br />

−5<br />

−5<br />

0 20 40 60 80 100<br />

0 20 40 60 80 100<br />

x 10−3<br />

x 10−3<br />

5 5<br />

3.3.5SummaryoftheTransverseResponseMeasurements Wehavedemonstratedthatthenumericalmodeldescribeswithhighcondencethetransverse<br />

0<br />

0<br />

propertiesoftheas-builtrecirculatingaccelerator.Wehavemeasuredthedispersioninthebackleg transferlinewhenthetrimquadrupoles<strong>and</strong>sextupolesinarc1arenotexcited<strong>and</strong>havediscovered thespuriousdispersionhasanamplitudesmallerthan5cm.<br />

−5<br />

−5<br />

0 20 40 60 80 100<br />

0 20 40 60 80 100<br />

Distance (meters)<br />

Distance (meters)<br />

compressionschemewas.Itenablestoh<strong>and</strong>lethelargemomentumspreadinducedasthelaser 3.4.1Motivation ItwasdemonstratedinReference[18]howimportant,forenergyrecoverypurpose,theenergy 3.4MeasurementoftheLongitudinalResponse<br />

operates.Thebasicsideaistosetthelongitudinallattice,intherecirculation,insuchaway<br />

∆ x (mm), Corrector 0F08H<br />

∆ y (mm), Corrector 0F04V<br />

∆ y (mm), Corrector 0F08V

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