SLAC Magnetic Measurements
Date: 04-24-2007
Time: 15:26:46
 
Coil Analysis
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Data File Header:
SLAC Magnetic Measurements
Date: 04-24-2007
Time: 14:55:51
Project: LCLS
Device Type: Undulator
Data Type: 
Serial Number: L143-112000-11
DATASET Number: 1
Tuning Stage: Fine Tuning
Run Number: 18
Measurement Type: Z Scans
Operator: YL
Comment: short coil measurement
Measurement Device x: 
Measurement Device y: SENTRON_441
Data File: s:\magdata\LCLS\Undulator\L143-112000-11\DATASET0001\Fine Tuning\Z Scans\Run 018\bscanz.dat
Temperature (C)
L143-112000-11:--> top_end 19.99 --> top_mid 20.02 --> top_start 20.07 --> bot 20.06 --> Air 20.05 --> granite 19.99 
Axes position (m) X:0.030450 Y:0.000488
Initial Hall Probe Zero Measurements:
Vx_0i = 0.001367 V
Vy_0i = -0.000902 V
Final Hall Probe Zero Measurements:
Vx_0f = 0.001320 V
Vy_0f = -0.000899 V
Offset Correction Voff = offset+index*increment
index = 0,1...21250
Vx:offset = 0.001367 V, increment = -2.237E-09 V
Vy:offset = -0.000902 V, increment = 1.331E-10 V
Hall Probe Calibration File:
Y: c:\CVI\current_calib\Sentron_441\Sentron_441_y.ini
X: c:\cvi\current_calib\HALLx_calib_poly_fit_file.dat
Reference Magnet Measurements:
Bx_ref = 0.0000xx (T)
By_ref = 0.0000xx (T)
Magnetic Field Measurements vs Z

Coil Analysis Parameters:
Input file directory = s:\MagData\LCLS\Undulator\L143-112000-11\DATASET0001\Fine Tuning\Z Scans\Run 018\
Input file name = x+00000_y+000_bscanz.dat
Input file type = ZVXYBXYC
Electron gamma = 26688.610000
Electron energy = 13.639364 Gev
Nominal zm of Bx coil at device center = 2.058900 m
Nominal zm of By coil at device center = 2.058900 m
Nominal undulator period = 0.030000 m
Number of poles = 226.000000 m

Coil Measurement Overall Field Integrals:
Int Bx dz =  -9.1086e-006 Tm
Int Int Bx dz dz =  -1.6634e-005 Tm^2
Int By dz =   9.4307e-006 Tm
Int Int By dz dz =   1.8585e-005 Tm^2

Trajectory Exit Information:
X at exit =   4.0855e-007 m
X slope at exit =   2.0731e-007
Y at exit =   3.6566e-007 m
Y slope at exit =   2.0023e-007