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)

[math]\epsilon_{nor} = \gamma_{rel} \beta \epsilon_{geo} [/math]

[math]\beta=v/c [/math] 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

176mA

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

Summary

(Normalized Emittance)=(Relativistic Factor) *(beta) * (Geometrical Emittance)

[math]\epsilon_{x}^{\mbox{Norm}} = \gamma_{rel} \beta \epsilon_{x}^{\mbox{geom}} [/math]

[math]\beta=v/c [/math] is almost one for 10 MeV

Peak Beam current	[math] \epsilon_{nx}[/math]	[math]\epsilon_{ny}[/math]
(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