E907 Installation Conference Call Minutes
|
9 May 2002 |
Phone Number |
Access Code: |
|
775-785-1944 |
536495 |
Agenda
|
Time (CST) |
Dur (min) |
Lead |
Topic |
|---|---|---|---|
|
3:00 |
5' |
call setup |
|
|
Chuck Brown |
BEAMS |
||
|
Mike Heffner |
Beam CKOV |
||
|
Ron Soltz |
TPC |
||
|
Jim Ellermeier |
Magnets |
||
|
Ingrid Fang |
CKOV Stand design and drawing status |
||
|
Peter Barnes |
RICH support stand |
||
|
Leon Beverly |
Chamber testing. |
||
|
Tim Bergfeld |
TOF |
||
|
Virgil Bocean |
Alignment |
||
|
AOB |
Leon Beverly's meeting summaries in italics.
BEAM - Beamline
Chuck Brown:
Opening of target pile is progressing, about 25% to 30% of blocks off the top; beam design is progressing, but need transport deck from Hartouni.
UBL - Upstream Beamline Detectors
No update; one day need detailed drawing of pipe with cerenkov heads & other beamline detectors.
TGTW - Target Wheel
CTGT - Cryogenic Targets
NTGT - NuMI (MINOS) Target
Ron Soltz:
Main LBNL archives to be transferred to LLNL.
Ingrid Fang:
I have collected the information from the E907 web site. I also looked the unit in the MC7. I will ask specific questions in the meeting.
Support needs to center TPC in JGG with minor adjustments for alignment done with existing 3 point under carriage; Ron Soltz reports ongoing DAQ, see Web page for documentation.
Installation/JHA procedure to John Cooper for review & signature; temporary barrier between US MC7 & DS MC7 is complete; preparing to start removing DS roof in sections.JGG - Jolly Green Giant
Rosy
Ingrid Fang:
Ready to be drawn by Gary. No change since last week.
Support cart ready for Gary to draw, completion expected in 2 weeks.
Ingrid Fang:
Gary is working on my mark-ups.
PO for discriminator adapter boards placed, no deliver date yet; DC#2 &endash; Gary is working on drawing mark-ups; Kilmer to assign engineer to start design on supports for chamber #5 & #6.
Mark Messier:
Here's my summary of the RICH electronics status:
As I'm sure you know, we've decided it would be too big a job to try to unsolder all the Russian FEU-60 bases so we'll be making use of the existing high voltage distribution system. Sten is working on the P.O. for the parts that are not involved with HV generation while he works on the redesign for the change in the HV plan. This is to keep work on the BTeV and CKM designs going. The next step for the MIPP version of the electronics is to inspect the RICH PMT box to see how to make the physical connections between the anode signals and the readout cards. I'm hoping Andrei and I can help with that later next week before the meeting.
Andrei and I have been looking into options for replacing the Russian HV supplies. Earl says they worked fine during the initial PMT testing and so may be reusable but some issues are: lack of FNAL support, questionable spares and spare parts, and lack of remote computer control and monitoring. There may also be safety issues, although SELEX managed to get operation of these supplies approved. For 32 tubes typical numbers are 2kV @ 7mA for 32 FEU-60's, and ~2kV @ 16 mA for 32 HAMA-R760's which is a lot more power per channel than the typical high density HV supply can put out. Andrei and I checked FNAL PREP and there's nothing there can reasonably meet these spec's. There may be a CAEN system which would do the job (a single mainframe w/ 10 cards of 9 channels each), although even that system is on the edge -- I need better numbers about the PMT base resistances and preferred HV before I can tell for sure.
PO for rails (delivery first week of June) and support stands (delivery end of June) placed with Burns Machinery; electronics &endash; HV distribution to PMT will remain unchanged, but new readout board will be built.
Ingrid Fang:
I almost finished the checking process. Gary needs to make a assembly drawing to show how the existing stand slides on top of the new one.
David Asner:
Successfully built and booted a linux kernel (help from Dave Slimmer) and commenced testing.
Alignment
The next call will be Thursday, 16 May 2002, at 3:00 CDT.