E907 Installation Conference Call Minutes
| 21 January 2003 |
Location |
Phone Number |
Access Code |
| WH-2 NE |
865-673-6703 |
334823 |
- Upstream Beamline
- Targets
- TPC - Time Projection Chamber
- Magnets
- CKOV - Cerenkov
- DC - Chambers
- TOF - Time of Flight
- RICH - Ring Imaging Cerenkov
- ECAL - EM Calorimeter
- NCAL - Hadron Calorimeter
- Gas Systems
- DAQ - Data Acquisition
- MC - Monte Carlo
- Installation
- MC7 - Enclosure and Counting House
- Meetings
- Project Management
Leon Beverly's meeting summaries in italics.
BEAM - Beamline
Dave Carey reports he has varied quad position and currents which show an improvement in beam dispersion; Also, Chuck Brown is varying collimator parameter to determine beam flux. Once the flux is determined, a decision can be made about the use of a couple of Virginia chambers in the MC6 area.
UBL - Upstream Beamline Detectors
BCKOV
Raja, Win, Holger, Terry & Dave will meet offline to discuss the gas system; Nick will get 10 PMTs for testing to Win; Win, Jim, Holger & Peter to decide on mirror coating option. Two CKOVs moved to MAB for refurbish work.
TGTW - Target Wheel
CTGT - Cryogenic Targets
NTGT - NuMI (MINOS) Target
Anti-dust room construction in progress; a few sticks still need to be repaired. The repaired sticks have not yet been tested. People will arrive in March to commence work on the electronics. It is estimated the TPC will be moved into location the first of April.
ZipTrack
Holger Meyer:
We just experimented with the E500 module from Lab 5. Everybody suspected that this module was broken and with the replacement errors would be gone. However, with the replacement module the system behaved just as before. Some more playing around let us to conclude that temperature probably is related to the failures. The system fails when it is too cold. Since we can control temperature we are confident that the system will work on Monday. (We will leave it on. It mostly fails after the CAMAC power is turned off or, as was the case last Saturday, when the room is cool.)
Just for backup we will try to get spares of the remaining components we did not exchange yet. This is the CAMAC crate itself (with power supply) and the CAMAC controller. Mike (or Jorge) will get a crate from PREP. I try to find the crate controller. It is a model different from what PREP supports for CAMAC to PC interface. What we need is a Kinetic Systems '3922 Parallel Bus Crate Controller'. If you have one or know someone who does, please let me know today, so I can get the module before Monday.
JGG - Jolly Green Giant
Rosie
Survey of ziptrack completed on 1/20. Power testing will be done on 1/22. Ziptracking will start on 1/23.
DC1-4 (E690 Chambers)
DC1: repairing last plane.
DC3 & DC4: a quote to fabricate support stands is due 1/17.
Modification in progress on voltage divider card needed to test discriminator cards.
DC5 & DC6 (Iowa Chambers)
Sanjib Mishra:
We have completed our investigations on the effect of the thickness of the TOF counters on (A) Momentum Resolution, and (B) RICH reconstruction.Thickness still open (5cm?); discussion of TOF effect on momentum resolution; issuing POs for material.
[Details to be posted soon.]
All training is complete. Plan to begin assembly of 2 planes and hang them in MC8 to evaluate system.
Craig coming to Fermilab 1/29 to discuss support stand with MD staff.
Alignment
Leon Beverly: HVAC Plan for MC7
The heating come from the individual unit heaters which each have their own local thermostat. All things being equal, the thermostat will allow a 3 or 4 degree swing. At the moment, however, all things are not equal. The DS end is pretty good, but the US area has bad insulation and is open to the MDB. New insulation will be added to the US part of the enclosure (by PPD, not E907). Additionally, I plan to build a wall at the US end to isolate MC7 from MDB. So at that point, I believe we will have an enclosure in which the heating and cooling will be relatively stable.Installation of cable tray for electronics cables is in progress. The tray will be completed about 1/24.
There will be air conditioning also. Currently there are two unit, both sit in the US area where they were used for E871. I imagine they will stay and some ducting will be added to get some decent circulation. E907 electronics will generate about 100 kW of heat load, so adequate A/C will have to be installed. I will have to have FESS to evaluate the A/C load and spec the cooling capacity needed.
Once all these things happen, I believe the temperature will not fluctuate more than a few degrees.
Gary Smith is updating the MC7 Layout drawing. He will distribute update.
The next call will be Tuesday, 28 January 2003, at 1:00 PM CDT in WH-2NE, Snake Pit.