#Injector Twiss Measurement
#3212 Sat 10th November
#3212 Sat 10th November
Twiss Method Emittance beta alpha
H Q-02 scan 6.09 12.82 -3.95
V Q-01 scan (Q2=0.25A) 1.82 30.22 -14.68
Summary of Twiss at entrance to Q-01.
Lattice = BURT: 1121110-194629Injector Status .snap file 10/ 11/ 12 22: 37:11
Q-01 0.380
Q-02 0.370
Q-03 0.040
Q-04 0.040
Q-05 1.530
Q-06 0.600
Q-07 0.950
Q-08 0.880
Q-09 0.160
Q-10 0.680
Q-11 0.440
Q-12 0.680
DIP-01 3.780
DIP-02 3.780
DIP-03 2.540
ST4-DIP-01 28.000
DIP-02 26.800
DIP-03 28.200
X/mm Y/mm INJ-2 4.06 2.09 INJ-3 1.61 1.05 INJ-4 2.87 0.9 ST1-1 0.84 2.7 ST1-1 0.64 2.81
Before Twiss measure [22:35] After Twiss measure [23:14] Note: The second measurement for ST1-1 is given when the image is rotated to exclude skew.
X/mm Y/mm INJ-2 4.36 2.22 INJ-3 1.89 1.15 INJ-4 3.45 0.8 ST1-1 0.66 2.75 ST1-1 0.47 2.75
I used these values for the measured beamsize
I propagated these values through the lattice below using ELEGANT model.
Model vs Measure, Nominal
INJ-YAG-2 INJ-YAG-3 INJ-YAG-4 ST1-OTR-1
Points = measurementsLine = ELEGANT model
Model vs Measure, NominalQ - 01 = 0.42 A
Model vs Measure, Nominal Q - 02 = 0.33 A
Model vs Measure, Nominal Q-06 = 0.63A.
Q-06