SLAC Magnetic Measurements
Date: 11-16-2006
Time: 16:14:01

Measurement File Header Information:
Project: LCLS
Serial Number: L143-112000-17
Run Number: 44
Operator: YL
Comment: y shim pole 216

Analysis Parameters:
Input file directory = C:\magdata\Lcls\Undulator\L143-112000-17\RMA0001\Rough Tuning\Z Scans\Run 044\
Input file name = bscanz_dat.001
Input file type = SLAC_BXBYVSZ
Correction required = 1
Correction file = c:\Insertion Device Analysis\Workspace\earth_field_sign.txt
Correction file type = CORR_BY
Electron gamma = 26690.650000
Electron energy = 13.640411 Gev
Nominal undulator period = 0.030000 m
Nominal K value = 3.499557
Nominal radiation wavelength = 1.500000e-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 = 1.278072 T, RMS = 0.003368 T
Peak Field Spacing: Ave = 0.015000 m, RMS = 0.000022 m
Zero Field Spacing: Ave = 0.015000 m, RMS = 0.000030 m
Average Undulator Period = 0.030000 m

Hall Probe Overall Field Integrals:
Int Bx dz =   3.1430e-005 Tm
Int Int Bx dz dz =   6.5689e-005 Tm^2
Int By dz =  -1.3770e-005 Tm
Int Int By dz dz =  -1.1048e-004 Tm^2

Trajectory Exit Information:
X at exit =  -2.4284e-006 m
X slope at exit =  -3.0267e-007
Y at exit =  -1.4439e-006 m
Y slope at exit =  -6.9085e-007

Calculated Undulator Parameters:
Keff = 3.501991
Beff = 1.250191 T
Lambda_rad = 1.501686e-010 m

Phase Fluctuations:
Slippage vs Z At Peaks Fitted Slope =   5.00566e-009
Undulator Period = 0.030000 m
Radiation Wavelength =   1.50169e-010 m
Phase Error (From Slippage vs Z Fit Residuals): Ave = 0.000000 deg, RMS = 3.051989 deg

Phase Relative To Nominal Radiation Wave:
Nominal Radiation Wavelength =   1.50000e-010 m
Cell Length = 3.656000 m
Number Of End Poles = 4
Phase Change Into Undulator (To Pole After End Poles) =     852.242 deg, mod_360 =     132.242 deg
Phase Change Through Undulator (Poles Between End Poles) =   39099.044 deg, mod_360 =     219.044 deg
Phase Change Out Of Undulator (To Pole Before End Poles) =     839.591 deg, mod_360 =     119.591 deg
Phase Change Of Cell =   40790.877 deg, mod_360 =     110.877 deg