Difference between revisions of "HRRL 03-17-2011"

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= Results =
 
= Results =
 
== Q1 ==
 
== Q1 ==
 +
 +
At lower current background subtraction gets worse, because singal/noise drops.
  
 
=== 42 mA, Positive Current, X projection ===
 
=== 42 mA, Positive Current, X projection ===

Revision as of 05:03, 14 April 2011

Accelerator Tuning

Good Tune Used for good Scan

By Dr. Kim

Solenoid 1 6.8 A
Solenoid 2 10.4 A
Gun Ver -0.2 A
Gun Hor +0.4 A
Output Hor -1.4A
Output Ver -0.5 A
Gun HV +9.75 (Knob Setting)
Gun Grid Voltage 5.25 (Knob Setting)
RF frequency 2855.816 MHz
Modulator HV Power Supply 4.42 (Knob Setting)
RF macro Pulse Length (FWHM) 200 ns
Peak Current on FC 37.2 mAmps
Scope on FC Scope image of good Accelarator setting by Dr. Kim Mar 17 2011.png
e- Beam Energy 14 MeV



Calibration

image OTR image cal_h (mm/px) cal_v (mm/px)
HRRL 03-17-2011 cal 1 source.png HRRL 03-17-2011 cal 1.png 0.04308 0.04204
HRRL 03-17-2011 cal 2 source.png HRRL 03-17-2011 cal 2.png 0.04320 0.04228
HRRL 03-17-2011 cal 3 source.png HRRL 03-17-2011 cal 3.png 0.04349 0.04181
HRRL 03-17-2011 cal 4 source.png HRRL 03-17-2011 cal 4.png 0.04323 0.04196
HRRL 03-17-2011 cal 5 source.png HRRL 03-17-2011 cal 5.png 0.04337 0.04212
mean (mm/px) mean (mm/px)
[math] 0.04327 \pm 0.00016 [/math] [math] 0.04204 \pm 0.00018 [/math]


Results

Q1

At lower current background subtraction gets worse, because singal/noise drops.

42 mA, Positive Current, X projection

emit=0.389 +- 0.001 mm*mrad, emit_norm=10.658 +- 0.034 mm*mrad

beta=1.28826 +- 0.00004, alpha=0.9378 +-0.0007

HRRL 03-17-2011 Results Q1 42mA Pos SupGau X.png


42 mA, Negative Current, Y projection

emit=0.269 +- 0.001 mm*mrad, emit_norm=7.370 +- 0.024 mm*mrad

beta=0.9271 +- 0.0001, alpha=0.1922 +-0.0005

HRRL 03-17-2011 Results Q1 42mA Pos SupGau Y.png


20 mA, Positive Current, X projection

HRRL 03-17-2011 Results Q1 20mA Pos SupGau X.png


emit=0.231 +- 0.001 mm*mrad, emit_norm=6.334 +- 0.020 mm*mrad

beta=0.6619 +- 0.0000, alpha=0.0639 +-0.0003

HRRL 03-17-2011 Results Q1 20mA Pos SupGau Y.png


emit=0.231 +- 0.001 mm*mrad, emit_norm=6.334 +- 0.020 mm*mrad

beta=0.661930 +- 0.000000, alpha=0.06386 +-0.00034



10 mA, Positive Current, X projection

HRRL 03-17-2011 Results Q1 10mA Pos SupGau X.png

emit=0.489 +- 0.002 mm*mrad, emit_norm=13.408 +- 0.043 mm*mrad

beta=1.30289 +- 0.00000, alpha=1.1231 +-0.0007


HRRL 03-17-2011 Results Q1 10mA Pos SupGau Y.png


emit=0.325 +- 0.001 mm*mrad, emit_norm=8.896 +- 0.029 mm*mrad

beta=1.319524 +- 0.000000, alpha=-0.05069 +-0.00069





HRRL_Emittance_Measurements_March14-18-2011