SLAC Magnetic Measurements
Date: 10-24-2014
Time: 09:56:28
 
Phase Analysis
--------------

Data File Header:
SLAC Magnetic Measurements
Date: 10-24-2014
Time: 08:49:23
Project: LCLS
Device Type: Undulator
Data Type: 
Serial Number: PHASE_SHIFTER
DATASET Number: 1
Tuning Stage: Fine Tuning
Run Number: 33
Measurement Type: Z Scans
Operator: YL
Comment: Check fiducialization; final; Gap = 11mm
Session first run: 33
Measurement Device x: 
Measurement Device y: SENTRON_441
Data File: s:\magdata\LCLS\Undulator\PHASE_SHIFTER\DATASET0001\Fine Tuning\Z Scans\Run 033\bscanz.dat
Temperature (C)
PHASE_SHIFTER:--> T1 20.00 --> T2 20.04 --> T5 19.96 --> T3 20.03 --> Air 20.02 --> T4 20.00 
Axes position (m) X:0.040854 Y:0.000450
Initial Hall Probe Zero Measurements:
Vx_0i = 0.001144 V
Vy_0i = -0.003000 V
Final Hall Probe Zero Measurements:
Vx_0f = 0.001165 V
Vy_0f = -0.002975 V
Offset Correction Voff = offset+index*increment
index = 0,1...5000
Vx:offset = 0.001144 V, increment = 4.127E-09 V
Vy:offset = -0.003000 V, increment = 4.949E-09 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

Analysis Parameters:
Input file directory = s:\MagData\LCLS\Undulator\PHASE_SHIFTER\DATASET0001\Fine Tuning\Z Scans\Run 033\
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 = -0.000000 T
Correction, By additive constant = -0.000000 T
Correction Bxy additive file = none
Correction Bxy additive file type = CORR_ZBXY
Electron gamma = 16765.211111
Electron energy = 8.567007 Gev
Nominal undulator period = 0.055000 m
Nominal K value = 3.500000
Nominal radiation wavelength = 6.971071e-010 m
Photon energy = 1778.553720 eV
Number of undulator poles = 4
Number of end poles (used in analysis) = 0
Cell length = 0.500000 m

Bx Peak And Zero Field Summary:
Number of Poles = 0
Number of End Poles (excluded in statistics) = 0
Peak Fields: Ave = 0.000000 T, RMS = 0.000000 T
Peak Field Spacing: Ave = 0.000000 m, RMS = 0.000000 m
Zero Field Spacing: Ave = 0.000000 m, RMS = 0.000000 m
Average Undulator Period = 0.000000 m

By Peak And Zero Field Summary:
Number of Poles = 4
Number of End Poles (excluded in statistics) = 0
Peak Fields: Ave = 0.845945 T, RMS = 0.200937 T
Peak Field Spacing: Ave = 0.030067 m, RMS = 0.012242 m
Zero Field Spacing: Ave = 0.036828 m, RMS = 0.000113 m
Average Undulator Period = 0.073656 m

Magnetic Length:
(Length between limits where abs(B) < threshold)
Field threshold to determine length = 0.000040 T
Magnetic length of Bx =   0.1858 m
Magnetic length of By =   0.4022 m

Magnetic Length:
(Length between limits where abs(Int B dz) < threshold)
Field integral threshold to determine length = 0.000003 Tm
Magnetic length of Bx =   0.2046 m
Magnetic length of By =   0.3182 m

Hall Probe Overall Field Integrals:
Int Bx dz =   2.1806e-005 Tm
Int Int Bx dz dz =   5.3603e-006 Tm^2
Int By dz =  -1.3424e-005 Tm
Int Int By dz dz =   1.3989e-006 Tm^2

Trajectory Exit Information:
X at exit =   4.8952e-008 m
X slope at exit =  -4.6976e-007
Y at exit =  -1.8758e-007 m
Y slope at exit =  -7.6306e-007

Cell Phase Relative To Nominal Radiation Wave:
Nominal Radiation Wavelength =   6.97107e-010 m
Cell Length = 0.500000 m
Phase Change Of Cell =    2985.592 deg

Phase Integral:
PI = Int_(z_enter)^(z_exit) {[Int_(-inf)^(z) Bx(z*) dz*]^2 + [Int_(-inf)^(z) By(z*) dz*]^2} dz (T^2m^3)
PI =  7.990e-006 T^2m^3
PI Of Cell =  7.990e-006 T^2m^3