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

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

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1<br />

Trim Quad Off<br />

Meas (Quad On)<br />

in Arc 1 or Arc 2<br />

0<br />

thelinacexittoarc3Fexit.MeasuredR56arealsopresentedaslledsquares. Figure3.18:EvolutionoftheR56alongthebeamtransportintherecirculationtransport,from<br />

Meas. Arc 1<br />

Trim Quad Off<br />

Meas. w Arc 1<br />

Both<br />

−1<br />

Trim Quads Off<br />

Arcs Trim<br />

Quads Off<br />

ARC 1 ARC 2<br />

−2<br />

0 20 40 60 80 100<br />

Distance From Cryomodule Exit (m)<br />

−0.3<br />

Momentum Compaction (m)<br />

Meas (Trim Quad On)<br />

All trim Quad On<br />

−0.35<br />

Numerical Simulation<br />

−0.4<br />

quadrupolessettings.<br />

fermapwiththeexpectedmomentumcompactionR56fromthedimadcode,fordierenttrimFigure3.19:Comparisonofthelineartermextractedbyttingthemeasuredenergy-phasetrans- −0.45<br />

−0.5<br />

−40 −30 −20 −10 0 10 20 30 40<br />

Trim Quadrupole Gradient Integral (G)<br />

Momentum Compaction (m)<br />

Experiment

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