Minutes/Action items of "Instrumentation-Systems-SDA" monthly meeting
April 2, 2008
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D. Capista, K. Gollwitzer, I. Kourbanis, V. Lebedev, C. McClure, T. Meyer,
V. Papadimitriou, J. Patrick, D. Slimmer, R. Thurman-Keup, A. Tollestrup, 
M. Wendt



We discussed the following:
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1) MI 8 GeV longitudinal emittance algorithm status
Randy Thurman-Keup / Vaia Papadimitriou


2) Main Injector IPM status
David Slimmer / Jim Zagel / Tom Meyer


3) Upgraded RFT status
Craig McClure


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Conclusions-Action Items:


1) The code containing the new emittance algorithm for the Main injector
is complete and stable.  The new devices for emittance, dp/p and bucket area
are into ACNET and the first two into SDA as well. The new emittances have been 
introduced in the pbar supertable and the store Supertable as additional
columns. In th epast couple of weeks Randy has fixed problems related with timeouts
in getting ACNET info as well as the interaction between the FIR filter and the 
baseline subtraction.

The comparison betweeen old and new MI emittances as well as between 
new MI emittances and RR emittances look good for both the pbar transfers and the 
Tevatron injections.
The decision was to keep checking the new vs the old data in a wide range of beam
parameters before we decide to substitute the old emittances with the new in the 
summary tables that go into the shotscrapbooks.  


2) MI IPM

The following 3 software issues have been worked on:

a) Changing control of the program from front panel interaction to “spec” control, 
very similar to flying wires. This conversion has been implemented and tested to 
the first order. What is lacking now is the Acnet console page to interface with 
“spec” capability of the front-end code.

b) Updating from an old version of LabView (6.1) to the latest, 8.5. So far the 
program has tested ok under LabView 7.1 and 8.2.1. David is now working on the 
8.5 build.

c) Eliminating use of the old VXI hardware driver libraries no longer supported by 
National Instruments, and converting to the VISA library National now supports. 
This conversion appears to be working in the LabView versions (7.1, 8.2.1) tested 
so far.

d) As an added bonus not reported in the meeting, the new MI IPM code reports its states


The expectation is to have this project complete for the MI IPM (including an ACNET
console page) by the end of April.  


3) Upgrated RFT
Craig is in the process of eliminating errors from the design.
New receivers have to be picked as well (within a day). 
The board layout should be complete by mid April.  
An additional two weeks may be required for a bare 
circuit board to be delivered for testing.


4) At the day of our meeting the MI vertical wire was being replaced.

Jim Zagel reported after the meeting that:
"
The repair of the wire during the shut down was accomplished.
However it does appear as though the vertical wire is not producing any profiles.
The first logged flies with the system were p-bar transfers to RR on 4/3 and do not 
show data from the vertical wire.
I know that Dave Capista did some work prior to those and noticed problems but these 
were not set to log on the front end.
I have done all the testing I can do with the data acquisition system and it appears 
to be working normally.
I need to be able to fly the wires through (low intensity) protons to definitively 
state that the wire is broken.

I will coordinate that effort with the MI people.
"



Our next meeting will be in May 2008.