Magnet field vs current

From: Ramiro Debbe (debbe@sgs1.hirg.bnl.goV)
Date: Wed Dec 06 2000 - 18:16:58 EST

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JH found problems in the fit to D5. 
D1, D4 and D5 have strong saturation and to fit that data I decided to
offset both coordinates. The fits are bad at low current values and I
only check a high value point. 
The new fits are restricted to values of current where saturation is not
present. 



The field value correspond to the big component (vertical) and the units
are gauss.
The current units are amps.

D1:
       Field =  -54.2 + 3.84*I - 0.00005*I^2

D2:
       Field =  -106.3 + 6.389*I - 0.00024*I^2
D3:
       Field = -51.31 + 4.286 * I - 0.000066 * I^2
D4:
       Field = -47.7 + 4.548 *I - 0.0000731 *I^2

D5:

       Field = 17.25 + 6.03*I - 0.00003*I^2

I will continue to check these fits. 

Ramiro

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