HRRL 03-15-2011
Quad scan
1.) deliver 165 mA peak current to FC with all Quads off Ouput corrector off (H2=0,V2=0) 2.) Use Q1-Q3 to make smallest spot on the OTR
3.) Use Output corrector to center beam spot onto OTR. Record transmission.
Quad scan using Q4
Do quick quad scan with analog camera
Install digital and shielding
| Quad current | STOR image |
| 200 px |
Scan Results
(Normalized Emittance)=(Relativistic Factor) *(beta) * (Geometrical Emittance)
is almost one for 10 MeV
Scan_Quad1
163mA
x-projection:
emit=0.236 +- 0.001 mm*mrad, emit_norm=4.622 +- 0.018 mm*mrad
beta=0.574 +- 0.001, alpha=0.895 +-0.002
y-projection:
emit=0.299 +- 0.003 mm*mrad, emit_norm=5.846 +- 0.054 mm*mrad
beta=0.315 +- 0.001, alpha=-0.742 +-0.004
80mA
x-projection:
emit=0.110 +- 0.001 mm*mrad, emit_norm=2.151 +- 0.014 mm*mrad
beta=0.378 +- 0.001, alpha=0.957 +-0.003
y-projection:
emit=0.281 +- 0.002 mm*mrad, emit_norm=5.491 +- 0.030 mm*mrad
beta=0.546 +- 0.001, alpha=-0.873 +-0.003
40mA
x-projection:
emit=0.267 +- 0.002 mm*mrad, emit_norm=5.224 +- 0.033 mm*mrad
beta=0.449 +- 0.001, alpha=1.142 +-0.004
y-projection:
emit=0.731 +- 0.004 mm*mrad, emit_norm=14.303 +- 0.076 mm*mrad
beta=0.382 +- 0.001, alpha=-0.613 +-0.002
20mA
x-projection:
emit=0.245 +- 0.002 mm*mrad, emit_norm=4.804 +- 0.031 mm*mrad
beta=0.463 +- 0.001, alpha=1.139 +-0.004
y-projection:
emit=0.699 +- 0.003 mm*mrad, emit_norm=13.673 +- 0.063 mm*mrad
beta=0.459 +- 0.001, alpha=-0.601 +-0.002
Scan_Quad4
176 mA
x-projection:
emit=0.110 +- 0.001 mm*mrad, emit_norm=2.158 +- 0.029 mm*mrad
beta=0.439 +- 0.003, alpha=1.439 +-0.009
y-projection:
emit=0.161 +- 0.001 mm*mrad, emit_norm=3.150 +- 0.012 mm*mrad
beta=0.734 +- 0.001, alpha=-0.607 +-0.002
88 mA
44mA
22 mA
11 mA
Summary
(Normalized Emittance)=(Relativistic Factor) *(beta) * (Geometrical Emittance)
is almost one for 10 MeV
| Peak Beam current | ||
| (mA) | (mm*mrad) | mm*mrad |
| 0.102 | 29 | 72 |
| 20 | 4.8 | 13.7 |
| 40 | 5.2 | 14.3 |
| 80 | 2.2 | 5.5 |
| 163 | 4.6 | 5.8 |