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COMMENT ON SAM 2025 Box Power Supply HCO
Aperture A2 opened all the way
With VBV0I02 and VBV0I05 closed, we retracted A2 up to the stopper ring.
Figure 1: vacuum at A2; peak 1 is valves closing, peak 2 is valves opening, small peak in between is A2 bellows moving.
Figure 2: before retraction; gap between the two metal plates of the linear stage is 39 mm at the "8 mm" position (as defined by aluminum bracket)
Figure 3: after retraction; top plate flush with stopper ring
Figure 4: gap is now 64 mm
iocsoftIDXSL27 restored
iocsoftIDXSL01 restored
Injector Steering Script Parameterization
Since I couldn't proceed with the main portion of my beam study I took some orbit response measurements to see how the spin flip solenoids effect the response.
Across all three spin flips (90, 0 -90), the orbit response behaves as you'd expect.
At 0 degrees, IPM1I05 shows relatively uncoupled response.
For 90 degrees, IPM1I05 shows essentially 45 degree coupling, with the vertical MBH1I04 corrector effecting both planes equally positive while the horizontal acts positively in the x and equally negative in the y.
For -90 degrees, IPM1I05 shows essentially -45 degree coupling, with the horizont










