SLAC Magnetic Measurements
Date: 03-04-2016
Time: 12:39:17
 
Phase Analysis
--------------

Data File Header:
SLAC Magnetic Measurements
Date: 03-04-2016
Time: 10:57:35
Project: LCLS
Device Type: Undulator
Data Type: 
Serial Number: PHASE_SHIFTER
DATASET Number: 2
Tuning Stage: Fine Tuning
Run Number: 24
Measurement Type: Z Scans
Operator: YL
Comment: Gap = 10mm; Assembly-disassembly test; at center
Session first run: 19
Measurement Device x: 
Measurement Device y: SENTRON_441
Data File: s:\magdata\LCLS\Undulator\PHASE_SHIFTER\DATASET0002\Fine Tuning\Z Scans\Run 024\bscanz.dat
Temperature (C)
L143-112000-13:--> T1 0.0 --> T2 0.0 --> T5 0.0 --> T3 0.0 --> Air 0.0 --> T4 0.0 --> KRefM 0.0 
Axes position (m) X:0.017343 Y:0.000366
Initial Hall Probe Zero Measurements:
Vx_0i = 0.001186 V
Vy_0i = -0.003124 V
Final Hall Probe Zero Measurements:
Vx_0f = 0.001196 V
Vy_0f = -0.003136 V
Offset Correction Voff = offset+index*increment
index = 0,1...20000
Vx:offset = 0.001186 V, increment = 4.844E-10 V
Vy:offset = -0.003124 V, increment = -5.813E-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

Analysis Parameters:
Input file directory = S:\MagData\LCLS\Undulator\PHASE_SHIFTER\DATASET0002\Fine Tuning\Z Scans\Run 024\
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 = -0.000015 T
Correction, By additive constant = -0.000010 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 = 0.032000 m
Nominal K value = 9.900000
Nominal radiation wavelength = 2.846527e-09 m
Photon energy = 435.563156 eV
Number of undulator poles = 4
Number of end poles (used in analysis) = 0
Cell length = 0.600000 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 = 0.803730 T, RMS = 0.230488 T
Peak Field Spacing: Ave = 0.025276 m, RMS = 0.009667 m
Zero Field Spacing: Ave = 0.031026 m, RMS = 0.000112 m
Average Undulator Period = 0.000000 m

Magnetic Length:
(Length between limits where abs(B) < threshold)
Field threshold to determine length = 0.000040 T
Magnetic length of Bx =   0.1886 m
Magnetic length of By =   0.0000 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 =   0.1574 m
Magnetic length of By =   0.3296 m

Hall Probe Overall Field Integrals:
Int Bx dz =    2.2145e-05 Tm
Int Int Bx dz dz =    3.9990e-06 Tm^2
Int By dz =   -1.7884e-05 Tm
Int Int By dz dz =   -1.6354e-07 Tm^2

Trajectory Exit Information:
X at exit =   -5.7234e-09 m
X slope at exit =   -6.2582e-07
Y at exit =   -1.3994e-07 m
Y slope at exit =   -7.7493e-07

Cell Phase Relative To Nominal Radiation Wave:
Nominal Radiation Wavelength =    2.84653e-09 m
Cell Length = 0.600000 m
Phase Change Of Cell =     493.933 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 =  4.6354e-06 T^2m^3
PI Of Cell =  4.6354e-06 T^2m^3