Minutes of DAQ/Online Calibration Meeting 03/03/00, 9AM

Attending:
D. Box
J. Cranshaw
A. Kotwal
S. Nahn
J. Patrick
A. Safonov
T. Vaiciulis
R. Vidal

Rick was unable to video in due to technical problems, so this 
meeting consisted of the roundtable discussion of progress 
and problems.

1) Silicon (S. Nahn)
Steve said that they were moving toward doing a D-mode calibration 
(pedestals) for an entire barrel. It still needed to be tested 
that the DAQ can handle the load, or at least that it can be set up 
to handle the load. Also, the calibration consumer used in January 
will probably have to be updated. The X-mode framework has been set 
up in hardware, but a decision on the balance between precision of 
data passed up versus the size of the file has not been made. 
Consequently, no bank definition has been given to Dave.

Jack asked what the size requirements for the Silicon for March, were. 
Steve and Jean said it depended on the situation at SiDet, and whether 
they started writing data from SiDet to the database. If this happens, 
then it would probably start at mid-March. After initial testing, this 
means that it could be written to the new production database, although 
space is available on the development database if needed.

2) COT (A. Kotwal)
The procedure for measuring the strobe offsets due to cable length is 
being optimized. It is now around 2 min/cable. R. Roser said that some 
of the cables should be ready for measuring by 3/15 while the rest 
should be done by the end of the month.

It was unclear who is working on COT alignment, even the initial 
survey numbers. Ashutosh said that he would investigate. Stage0 is 
under development by the Harvard group, Kevin Burkett, et. al.

3) Muon (A. Kotwal)
The muon system will use the timing measurements as a diagnostic, not 
a calibration. Current plans are not to write this to the database. 
The alignment from the survey is probably sufficient for tracking.

4) Database (J. Cranshaw)
Jack brought up a discussion of the cross reference to the hardware 
database, and proposed that the consumers do the access online and 
encode any information needed elsewhere in a hardware id. This was 
suggested to solve the problem of no history in the hardware database, 
and non-online users hitting on the online database to locate their 
channel position.

5) DBANA (J. Cranshaw)
It was mentioned that it would be nice to get the SVX involved, 
particularly as a stress test.

6) Luminosity (A. Safonov)
Alexei presented the current status of setting up the CLC electronics 
and diagnostics. The LED system has been tested in both asynchronous (test) 
and synchronous (operational) modes. Results from both modes of operation 
are consistent. Slight instability in the data indicates the need of a 
better LED. Both the position and the width of the signal will be used for 
timing. Work is beginning on both D-mode and X-mode consumers. 

7) Consumer (T. Vaiciulis)
Tony commented that there had been a simplification of the ConsumerInput, 
so that it automatically adjusts to the input format.