Log entry time 16:39:40 on September 1,2005

Entry number 154138

Current ... HAPPEX ... Spectr ..... Upstream ....... Downstream

.. uA ....... run .... run ......BCM ... X ... Y .... BCM ... X ... Y



... 36 ...... 4913 ... 2598 ..... 11 ... 9 ... 9 .... 11 .... 9 ... 9

.... 1 ...... 4914 ... 2599 ..... all 15

Arne Freyberger realizes we need to reduce post-gain.

The X,Y are saturating.  

15:20 We turn off raster.

.... 1 ...... 4915 ... 2600 ... all pregains 15. all post 18000

.... 1 ...... 4916 ... 2601 ... short run, junk

Realized dithering was on.  Turned it off.

Next we will do a run during which we scan X,Y over a box.

At each corner of the box (size +/- 2mm) we pause for 3 minutes

Online it looks like stripline EPICs tracks cavities PC104.  Good!

.... 1 ...... 4917 .... 2602 ... Box scan

Arne says the cavities saturate at 2 mm at one corner.  So during 

the above box scan, MCC reduces the scan to about 1 mm box size.

--

Next we will go for 50 nA using Hall B slits (gives fine control

of nA beam and is how we'll do low-I in Sept).

The striplines probably won't work.  Arne adjusts gain from MCC.

Waiting ... ACC problems ... so I leave this for the swing shift.

After Arne makes his adjustments we'll need to:

1. Record the parameters (gains/phases).

2. Do a box scan using the known amplitude on steering coil.

3. Return to production.