Slide 1

LOLA Measurements vs. Beam Dynamics SimulationsIgor Zagorodnov11.04.2011DESY

Shift on 23.03.2011 (~3 hours afternoon)ParameterQ0.35-0.4 nCE1150 MeV118oE2445 MeV24.58oE3665 MeVParameter110o131.5o2-8o3-4.5oOn-crest phases

On-crestks=0.9256kE =1.1570- an additional calibration of the measurement

C=2.2C1 =1.9C2 =1.1

C=3.2C1 =2.6C2 =1.2

C=3.2=2.6*1.2

LOLA resolution increase. New Calibration.ks=0.9256kE =1.1570- an additional calibration of the measurementC=3.2=2.6*1.2

New additional calibration.ks=0.9256kE =1.1570ks=0.83kE =1.71

C=4.5=3.2*1.4

C=4.5=3.2*1.4

C=5.4=3.7*1.5

Without CSRtrackWith CSRtrackC=5.4=3.7*1.5

Without CSRtrackWith CSRtrackC=7.6=4.44*1.71

Current profile?I [A]s [m]s [mm]I [A]shot1shot1measurementssimulationsat LOLAstart

s [mm]I [A]s [mm]I [A]simulationsat LOLAstartsimul.meas.at LOLA

C=7.6=4.44*1.71smooth currentnew current

V13=+0.9 MV

fi11=+0.3 degRF parameters?

fi11=+0.3 degfi11=0 deg

V13=+0.9MVRF parameters?On-crest simulations vs the measurement.17

V13=+1.1 MVfi11=-0.2 degC=9.4=4.9*1.9

C=32=7.5*4.3V13=+1.5 MVfi11=-0.2 deg