SLAC Magnetic Measurements
Date: 08-23-2011
Time: 10:15:23
 
Planar Insertion Device Analysis
--------------------------------

Data File Header:
SLAC Magnetic Measurements
Date: 08-23-2011
Time: 10:05:47
Project: LCLS
Device Type: Undulator
Data Type: 
Serial Number: A1-ANL
DATASET Number: 3
Tuning Stage: Rough Tuning
Run Number: 43
Measurement Type: Z Scans
Operator: YL
Comment: smaller mirror plate; gap = 15mm, plate = 9cm
Session first run: 43
Measurement Device x: 
Measurement Device y: SENIS_463
Data File: s:\magdata\LCLS\Undulator\A1-ANL\DATASET0003\Rough Tuning\Z Scans\Run 043\bscanz.dat
Temperature (C)
Axes position (m) X:0.042643 Y:0.000069
Initial Hall Probe Zero Measurements:
Vx_0i = 0.001323 V
Vy_0i = 0.001617 V
Final Hall Probe Zero Measurements:
Vx_0f = 0.001321 V
Vy_0f = 0.001616 V
Offset Correction Voff = offset+index*increment
index = 0,1...19600
Vx:offset = 0.001323 V, increment = -1.159E-10 V
Vy:offset = 0.001617 V, increment = -3.719E-11 V
Hall Probe Calibration File:
Y: C:\CVI\current_calib\SENIS_463\SENIS_463_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

Analysis Parameters:
Input file directory = s:\MagData\LCLS\Undulator\A1-ANL\DATASET0003\Rough Tuning\Z Scans\Run 043\
Input file name = x+00000_y+000_bscanz.dat
Input file type = ZVXYBXYH
Correction required = 1
Correction, Bx multiplicative factor = 1.000000 
Correction, By multiplicative factor = 1.000000 
Correction, Bx additive constant = 0.000000 T
Correction, By additive constant = 0.000000 T
Correction Bxy additive file = none
Correction Bxy additive file type = CORR_ZBXY
Electron gamma = 26686.340000
Electron energy = 13.636695 Gev
Nominal undulator period = 0.033000 m
Nominal K value = 1.702293
Nominal radiation wavelength = 5.673840e-011 m
Number of undulator poles = 144
Number of end poles (used in analysis) = 4
Cell length = 2.376000 m
Nominal phase change through cell = 452.389342 rad
Nominal phase of pole after end poles = 14.137167 rad
Save as final result = 0
Result file directory = c:\magdata\slac_und_2\
Result file name = zscan_xn0060yp0002.dat
Figures close on exit = 0
Figures visible = 1

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The Measured Fields Were Corrected:
Bx_corr = CORR_BX_MULT * Bx + CORR_BX_ADD + CORR_BX_ADD_FILE
By_corr = CORR_BY_MULT * By + CORR_BY_ADD + CORR_BY_ADD_FILE
Parameters:
CORR_BX_MULT = 1.000000 
CORR_BY_MULT = 1.000000 
CORR_BX_ADD = 0.000000 T
CORR_BY_ADD = 0.000000 T
CORR_BX_ADD_FILE = none
CORR_BY_ADD_FILE = none
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Peak And Zero Field Summary:
Number of Poles = 144
Number of End Poles (excluded in statistics) = 4
Peak Fields: Ave = 0.555539 T, RMS = 0.002894 T
Peak Field Spacing: Ave = 0.016500 m, RMS = 0.000026 m
Zero Field Spacing: Ave = 0.016501 m, RMS = 0.000045 m
Average Undulator Period = 0.033000 m