Run Notes Run 1 0.1525 is the half way z point of the magnet. 2x the integral field of run 1 (magnet at 6 amps) from -0.065 to 0.155 is 105.7 G-m, but only going to -0.065 means not all of the field is captured. At -0.065 m the field is still 48 G. Another type 5 corrector was measured for LCLS with a coil and it had 110 G-m integrated field at 6 amps which seems a reasonable value for a type 5. If 120 G-m is required for the dump rastering, then the field at the center of the Type 5 would need to be 120/110* 308.3 G = 336.3 G where 308.3 G is the field at the manget center at 6 A. Run 4 - wave is sine wave. Corrector driven by MCOR 12. Func Gen Output is 0.5 Vpp. Current readout on scope is 15 mV peak to peak, 4.2 mV rms. 34970 is 4.28 mV rms From an email I sent to John Amann: The type 5 corrector has an inductance of 90 mH, which makes the reactance 34 Ohms at 60 Hz.  The current is out of phase with the voltage by about 85 degrees.   Attached is a plot of the field at 0.528 amps  (peak current for AC) for both a DC and AC current. It looks like for the DC measurements the steel is not nearly saturated but for the AC measurements it is .  The same of the AC current measurement is very similar to the 6 amp dc measurement, see second plot, which has the ac measurement scaled to the 6 amp field.  The reactance of the corrector is so high that pulsing it at 60 Hz would take a lot of voltage.