CHIPS IAC Run 5-27-08: Difference between revisions

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|Bend2 || 0.86
|Bend2 || 0.86
 
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|Gun HV|| 3 kV
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|Grid|| 0.43
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|802 || 16 kV
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Revision as of 16:13, 27 May 2008

Beam Tuning pictures:

Smallest beam spot at 0 Degree port

The beam appears to light up a 3 mm diameter circle on the Phosphorus screen.

Smallest beam spot at 90 Degree port

The beam appears to light up a [math]\displaystyle{ 8mm \times \frac{3.5 cm}{7.5cm} = 4 mm }[/math] diameter circle on the Phosphorus screen with [math]\displaystyle{ 20 \pm 10 \mu A }[/math] of beam current.


Device setting
RS1 0+
RS2 0-
FS1 0+
FS2 0-
0Q1 -2.62
0Q2 +4.04
45Q1 -1.88
45Q2 +1.74
L90Q1 -0
L90Q2 +2.87
Bend1 3.5
Bend2 0.86
Gun HV 3 kV
Grid 0.43
802 16 kV

Max Transmission

Retune machine to maximize transmission between the FC collar and the FC.

Using FrameGrabber