SLAC Magnetic Measurements
Date: 08-05-2013
Time: 10:10:05
 
Planar Insertion Device Analysis
--------------------------------

Data File Header:
SLAC Magnetic Measurements
Date: 08-05-2013
Time: 09:35:48
Project: LCLS
Device Type: Undulator
Data Type: 
Serial Number: LHU-0002
DATASET Number: 1
Tuning Stage: Rough Tuning
Run Number: 2
Measurement Type: Z Scans
Operator: YL
Comment: first measurement
Session first run: 2
Measurement Device x: 
Measurement Device y: SENIS_463
Data File: s:\magdata\LCLS\Undulator\LHU-0002\DATASET0001\Rough Tuning\Z Scans\Run 002\bscanz.dat
Temperature (C)
Axes position (m) X:0.014668 Y:0.000197
Initial Hall Probe Zero Measurements:
Vx_0i = 0.002173 V
Vy_0i = 0.002086 V
Final Hall Probe Zero Measurements:
Vx_0f = 0.002145 V
Vy_0f = 0.002082 V
Offset Correction Voff = offset+index*increment
index = 0,1...9600
Vx:offset = 0.002173 V, increment = -2.948E-09 V
Vy:offset = 0.002086 V, increment = -4.265E-10 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\LHU-0002\DATASET0001\Rough Tuning\Z Scans\Run 002\
Input file name = x+00000_y+000_bscanz.dat
Input file type = ZVXYBXYH
Correction required = 0
Correction, Bx multiplicative factor = 1.000000 
Correction, By multiplicative factor = 1.000000 
Correction, Bx additive constant = -0.000020 T
Correction, By additive constant = 0.000040 T
Correction Bxy additive file = none
Correction Bxy additive file type = CORR_ZBXY
Electron gamma = 264.188353
Electron energy = 0.135000 Gev
Nominal undulator period = 0.054000 m
Nominal K value = 2.550000
Nominal radiation wavelength = 1.644573e-006 m
Number of undulator poles = 22
Number of end poles (used in analysis) = 3
Cell length = 0.594000 m
Nominal phase change through cell = 69.115038 rad
Nominal phase of pole after end poles = 0.000000 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

Peak And Zero Field Summary:
Number of Poles = 22
Number of End Poles (excluded in statistics) = 3
Peak Fields: Ave = 0.482501 T, RMS = 0.004463 T
Peak Field Spacing: Ave = 0.026912 m, RMS = 0.000063 m
Zero Field Spacing: Ave = 0.026896 m, RMS = 0.000064 m
Average Undulator Period = 0.053831 m

Hall Probe Overall Field Integrals:
Int Bx dz =   1.1098e-004 Tm
Int Int Bx dz dz =   1.1546e-004 Tm^2
Int By dz =   2.3720e-005 Tm
Int Int By dz dz =   4.6161e-005 Tm^2

Trajectory Exit Information:
X at exit =   1.0251e-004 m
X slope at exit =   5.2676e-005
Y at exit =  -2.5640e-004 m
Y slope at exit =  -2.4646e-004

Calculated Undulator Parameters:
Keff = 2.424946
Beff = 0.482447 T
Lambda_rad = 1.519465e-006 m