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Beam from Gun to PCup; then PCup to FC1 to 1D
VWien calibration fit
Data from entry #4469029.
Fit function: f(voltage) = ampl * sin((x * calib) - phase) / 180*pi)
calib = (5.34 +- 0.03) degrees / kV
phase = -0.8 +- 0.2 degrees
ampl = (-34.3 +- 0.1) %
The polarization is ampl / 0.3921 = (87.5 +- 0.3) %.
Will compare the calibration constant with what's in the control system and adjust if necessary.
FSD Masking Tool: Successful System Masking for: BeamLossMonitor
ATLis Comments Daily Digest
HYST AREA 7-0 Cycles Magnets
HYST AREA 7-0 Cycles Magnets
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The OPS DRVHs for the following cavities have been updated: 1L03-6
The OPS DRVHs for the following cavities have been updated:
1L03-6
Username: anthony
Date/Time: 02-07-26_17:36:15
RF Status: Good
Tuner Status: Good
Comment: DRVH=6.000 ODVH changed due to Special Instructions/Program Requirements
Previous OPS DRVH: 0
Special Instructions:
The OPS DRVHs for the following cavities have been updated: 1L03-5
The OPS DRVHs for the following cavities have been updated:
1L03-5
Username: anthony
Date/Time: 02-07-26_16:58:11
RF Status: Good
Tuner Status: Good
Comment: DRVH=5.000 ODVH changed due to Special Instructions/Program Requirements
Previous OPS DRVH: 5
Special Instructions:
The OPS DRVHs for the following cavities have been updated: 1L03-5
The OPS DRVHs for the following cavities have been updated: 1L03-5
"Starting NL Gradient Ramp"
BSList #115784: parasitic spin rotator - study unfinished
Flipping one counterwound solenoid at a time to see if one of them is responsible for the spin precession around the longitudinal axis that seems to originate between HWien and Mott.
Ali is logging the Mott results separately.
VWien=-90, flipper +/-, HWien=0.
MFX0I01: originally at -220 (#10105 IN, #10106 OUT); trying +220 (#10107 IN, #10108 OUT) and then another run at -220 as a sanity check (#10109 IN, #10110 OUT)
MFA0I03: difficult to flip sign without messing up the orbit in the chopper.
Changed plans to turning the chopper off and comparing.
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2uA, V Wien-90, Inverted & Not-Inverted, Chopper On/OFF
2uA, IHWP IN, V Wien-90, MFXOIO1 Inverted
Run Number 10107
Mott Asym UD (%) = -0.405894 +/- 0.286652
Mott Asym LR (%) = -33.9631 +/- 0.279331
2uA, IHWP OUT, V Wien-90, MFXOIO1 Inverted
Run Number 10108
Mott Asym UD (%) = 1.18891 +/- 0.293621
Mott Asym LR (%) = 33.9136 +/- 0.283401
2uA, IHWP IN, V Wien-90, MFXOIO1 Not-Inverted
Run Number 10109
Mott Asym UD (%) = -0.552629 +/- 0.291402
Mott Asym LR (%) = -34.1934 +/- 0.283492
2uA, IHWP OUT, V Wien-90, MFXOIO1 Not-Inverted
Run Number 10110
Mott Asym UD (%) = 0.692711 +/- 0.29237
Mott Asym LR (%) = 34.29










