beamline computers
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Message ID: 521     Entry time: Sat Jun 17 00:41:39 2006
Author: Eric Dufresne 
Type: Other 
Category: Construction 
Subject: new times series of mono every second, comments from weeks work 
Hi all,

I updated my tserie_bpm program to read the new monochromator PVs and
the eps crate. Eventhough PVs are read in by OAG, the tserie_bpm
is useful for fast data acquisition, and for quick access to data.
I need to write a filter to transform the OAG data into an ascii file
or to ask OAG to improve the web site so that one can change axes range,
etc...
To run it: tserie_bpm started in Data_operation/2006/Jun
use make_gp to generate gnuplot scripts that can be fed into gnuplot.

Today, Don took care of the make shift EPS. He has two ELOGs written on the
matter. http://server.mhatt.aps.anl.gov/519 and
http://server.mhatt.aps.anl.gov/520(local access only)
On Monday, I'll try to debug my water flow electronics, and talk to Bob Dortwegt
about calibration tables for the flow meter, and talk to Nick Friedman about modifying
the EPS.

I read the log book while taking an hour long tserie. Don measured on p18 a theta2 scan
FWHM of 2.83 mdeg (about 2eV at 11.1 keV). Diamond (111) XOP simulations yield about 1 mdeg FWHM.
So it seems that our diamond is a factor 2.8 worse than theory.
How does it compare to the old mono? I thought I had this info handy but I don't.
I think in Dec 04, people measured 2 eV at the Kr edge?
See att. 1 anyway. Don also saw again an horizontal edge of the beam (p21+24).
There are two edges separated by about 2.3 mm instead of 3mm (scan 1.

Below are also 3 plots from tserie_bpm. 7idb and 7idc ICs are off.
The beam position units are in microns so without feedback this looks already
quite useable.

Eric

PS Below are some emails from Don
Note ID optimization Tuesday


Date: Fri, 16 Jun 2006 14:28:30 -0500 (CDT)
From: Don Walko <d-walko@anl.gov>
To: MHATT-CAT Staff <staff@mhatt.aps.anl.gov>
Subject: BPM is OK

I took a burn of the beam after the 7ID-C BPM, with wide-open slits. I
didn't see any shadows of BPM wires, so I think I reinstalled the BPM
correctly.
By the way, I turned the gain of the BPM back up to 6, which I assume is
what the AMO group will need next week.
Don

---------------------------- Original Message ----------------------------
Subject: Steering optimization at 1100-1400 6/20/06
From: "Karen M. Schroeder" <schroedr@aps.anl.gov>
Date: Fri, June 16, 2006 3:28 pm
To: d-walko@anl.gov
Cc: "Michael Borland" <borland@aps.anl.gov>
"Karen Schroeder" <schroedr@aps.anl.gov>
--------------------------------------------------------------------------

Hi Don,

The steering optimization study has been scheduled for 11:00a.m. to 2
p.m. on Tuesday, June 20.

Karen
Attachment 1: 7idb_0007_det2.png  7 kB  | Hide | Hide all
7idb_0007_det2.png
Attachment 2: 061606_23h30m48s_int.png  7 kB  | Hide | Hide all
061606_23h30m48s_int.png
Attachment 3: 061606_23h30m48s_bpm.png  9 kB  | Hide | Hide all
061606_23h30m48s_bpm.png
Attachment 4: 061606_23h30m48s_apsbpm.png  9 kB  | Hide | Hide all
061606_23h30m48s_apsbpm.png
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