SLAC Magnetic Measurements
Date: 03-21-2007
Time: 10:42:24
 
Planar Insertion Device Analysis
--------------------------------

Data File Header:
SLAC Magnetic Measurements

Analysis Parameters:
Input file directory = S:\MagData\LCLS\Undulator\L143-112000-17\DATASET0001\Fine Tuning\Z Scans\Run 008\
Input file name = bscanz_dat.001
Input file type = ZVXYBXYH
Correction required = 0
Correction file = c:\Magdata\Earth Field Correction\earth_field_corr.dat
Correction file type = CORR_ZBXY
Electron gamma = 26690.650000
Electron energy = 13.638901 Gev
Nominal undulator period = 0.030000 m
Nominal K value = 3.499557
Nominal radiation wavelength = 1.499903e-010 m
Number of undulator poles = 226
Number of end poles (used in analysis) = 4
Cell length = 3.656000 m

Peak And Zero Field Summary:
Number of Poles = 226
Number of End Poles (excluded in statistics) = 4
Peak Fields: Ave = 1.276475 T, RMS = 0.005584 T
Peak Field Spacing: Ave = 0.015001 m, RMS = 0.000023 m
Zero Field Spacing: Ave = 0.015001 m, RMS = 0.000033 m
Average Undulator Period = 0.030002 m

Hall Probe Overall Field Integrals:
Int Bx dz =   1.3742e-004 Tm
Int Int Bx dz dz =   2.5944e-004 Tm^2
Int By dz =   7.1164e-005 Tm
Int Int By dz dz =   2.5801e-005 Tm^2

Trajectory Exit Information:
X at exit =   5.6713e-007 m
X slope at exit =   1.5642e-006
Y at exit =  -5.7026e-006 m
Y slope at exit =  -3.0205e-006

Calculated Undulator Parameters:
Keff = 3.499457
Beff = 1.249196 T
Lambda_rad = 1.499928e-010 m

Phase Fluctuations:
Slippage vs Z At Peaks Fitted Slope =   4.99943e-009
Undulator Period = 0.030002 m
Radiation Wavelength =   1.49993e-010 m
Phase Error (From Slippage vs Z Fit Residuals): Ave = -0.000000 deg, RMS = 3.127389 deg

Phase Relative To Nominal Radiation Wave:
Nominal Radiation Wavelength =   1.49990e-010 m
Cell Length = 3.656000 m
Number Of End Poles = 4
Phase Change Into Undulator (To Pole After End Poles) =     811.447 deg, mod_360 =      91.447 deg
Phase Change Through Undulator (Poles Between End Poles) =   39065.571 deg, mod_360 =     185.571 deg
Phase Change Out Of Undulator (To Pole Before End Poles) =     798.646 deg, mod_360 =      78.646 deg
Phase Change Of Cell =   40675.665 deg
Nominal Phase Change Of Cell =   40680.000 deg
Phase Error Of Cell =      -4.335 deg