From: Dell'Orco, Domenico
Sent: Monday, July 28, 2003 11:41 AM
To: Anderson, Scott D.
Subject: Hall probe scanning

Hi Scott,
For the Hall probe scanning please use the following curve.
X=R-sqrt(R^2-z^2)
where R=7.8291 m
Z=0 at the end of the pole extension, x=0 is the centerline of the magnet.
At the end of the magnet (the exit pole extension, z=1.18542m and
x=0.09026m.

Please measure the field at z from -0.1 to +1.28 with dz =0.0115 (120
points)
And x from -0.0225 to +0.0225 at dx=0.0015 (30 points).

There are 3600 points and at 8s/ea is 4 hours/halfmagnet

The currents to be used are the same as for the leakage field: 273A, -10%,
+10%.

Also please scan the end field with both mirror plates from z from -0.1 to
0.1 dz=0.0025, x from -0.0075 to 0.0075 with dx =0.0015
(81 x 11 =891 points @ 8s/ea = 2 hours).

The injected field to be measured is only the main component (vertical
only).

Let me know if you need anything else or if the points are too many.

Bye
Domenico




-----Original Message-----
From: Anderson, Scott D. [mailto:sda@SLAC.Stanford.EDU] 
Sent: Friday, July 25, 2003 6:18 PM
To: Dell'Orco, Domenico
Subject: Data


Domenico,

The hall probe data (vertical) is on the web in run 17.

-Scott Anderson
sda@slac.stanford.edu