SLAC Magnetic Measurements
Date: 05-17-2016
Time: 15:03:58
 
Trajectory Analysis
-------------------

Data File Header:
SLAC Magnetic Measurements
Date: 05-05-2016
Time: 15:53:16
Project: LCLS
Device Type: Undulator
Data Type: 
Serial Number: HXU-32
DATASET Number: 1
Tuning Stage: Fine Tuning
Run Number: 16
Measurement Type: Z Scans
Operator: 
Comment: Fluxgate measurement of the background fields, x-field, gap = 160mm, x = 0.0
Session first run: 15
Measurement Device x: 
Measurement Device y: SENTRON_463_Y
Data File: s:\magdata\LCLS\Undulator\HXU-32\DATASET0001\Fine Tuning\Z Scans\Run 016\bscanz.dat
Temperature (C)
Axes position (m) X:0.219740 Y:-0.027500
Initial Hall Probe Zero Measurements:
Vx_0i = 2.737517 V
Vy_0i = -3.367841 V
Final Hall Probe Zero Measurements:
Vx_0f = 2.588850 V
Vy_0f = -1.949427 V
Offset Correction Voff = offset+index*increment
index = 0,1...18040
Vx:offset = 2.737517 V, increment = -8.241E-06 V
Vy:offset = -3.367841 V, increment = 7.863E-05 V
Hall Probe Calibration File:
Y: C:\CVI\current_calib\SENTRON_463_Y\SENTRON_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\HXU-32\DATASET0001\Fine Tuning\Z Scans_Fluxgate\Run 016\
Input file name = x+00000_y+000_bscanz.dat
Input file type = FLUXGATE
Correction required = 0
Correction, Bx multiplicative factor = 1.000000 
Correction, By multiplicative factor = 1.000000 
Correction, Bx additive constant = 0.000002 T
Correction, By additive constant = 0.000008 T
Correction Bxy additive file = none
Correction Bxy additive file type = CORR_ZBXY
Electron gamma = 7827.790000
Electron energy = 3.999993 Gev
Nominal radiation wavelength = 1.500000e-10 m
Photon energy = 8265.616240 eV
Nominal position of device center = 0.000000 m
Nominal position of device entrance = 0.000000 m
Nominal position of device exit = 0.000000 m
Field integral limit specifying the end of the fringe field = 0.000003 Tm

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The Measured Fields Were Corrected:
Measurement direction correction.
Z  = - fliplr(Z_meas)
Bx = - fliplr(Bx_meas)
By = + fliplr(By_meas)
Bz = - fliplr(Bz_meas)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Bench Coordinates:
ZM bench coordinate of mean of By field zeros =   0.0000 m
ZM bench coordinate of first By field peak =   0.0000 m
ZM bench coordinate of last By field peak =   0.0000 m

Hall Probe Overall Field Integrals:
Int Bx dz =   -2.7172e-05 Tm
Int Int Bx dz dz =   -4.3653e-05 Tm^2
Int By dz =   -7.1718e-05 Tm
Int Int By dz dz =   -1.0659e-04 Tm^2

Trajectory Exit Information:
X at exit =   -7.9884e-06 m
X slope at exit =   -5.3751e-06
Y at exit =    3.2717e-06 m
Y slope at exit =    2.0365e-06