|
1 July 2003 |
Location |
Phone Number |
Access Code |
|
WH-2 NE |
865-673-6703 |
334823 |
Progress Updates and Issues
- 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.
Win Baker:
While I am away from Fermilab (July 7 - 25), please contact the Fixed Target ES&H Committee members directly, with email copies to me, regarding reviews required for obtaining Operational Readiness Clearances for your equipment. Many of you are doing this already.
As stated in my earlier mail below, contact Stan Orr for electrical review, Jim Priest for fire and gas reviews and Russ Rucinski for mechanical review.
BEAM - Beamline
Raja:
The MIPP beam and survey sheets have been modified slightly. The trims downstream of the collimator have been moved to be closer to the quad that comes after them. (Thanks Chuck for pointing this out).Also the collimator center was not consistent with the present collimator length. (Thanks Mikhail for noticing this).
This means a small extra task for the survey crew to re-stake these elements.
Fritz Lang:
This morning, Dave Augustine, Christine Ader, and myself met with Mike Crisler and Jim Kilmer. We discussed possible options for completing the mechanical sections of what remains of the SY120 task. After some thought, they [PPD] decided to accept the responsibility for the mechanical portion and they will provide all necessary technician, engineering, and drafting resources from here on out. Of course, we will be going through a transition period and, in the meantime, we will continue to maintain our current activities to keep the job going.
Raja:
This has come through finally after a lot of lunchtime conversations and meeting with Roger Dixon. It is very good for us. ppd will install the beamline with Kilmer directing. Del Miller as crewchief.
UBL - Upstream Beamline Detectors
BCKOV
TGTW - Target Wheel
CTGT - Cryogenic Targets
NTGT - NuMI (MINOS) Target
ZipTrack
JGG - Jolly Green Giant
Rosie
DC1-4 (E690 Chambers)
David Miller:
Yesterday afternoon I tested DC2 with 400 volts. It held just fine at 28 nA. The chamber had only been under Nitrogen for about 5 hours, so I didn't go past 400 volts. Today I will continue the test to ~2000 volts. This is a quick test, not training. The training will happen later in MC7 under working gas. DC2s preamp supports are completely taped. I will add some more tape elsewhere today. Special thanks are in order for Raja's student Gary Sinclair.
DC1's preamp taping should be completed this morning. Again, I will add some extra copper tape elsewhere.
I intend to place the chambers on their stands late this afternoon and have them ready for pickup Tomorrow morning. After the chambers are ready, I will put the cushion gasket onto the CKOV. Probably late this evening.
Pierrick Hanlet:
DC1 and DC2 are now installed in MC7. Kudos to Mike, Craig, and David! I think George has some nice video footage of the efforts.
We are continuing to test electronics for the newly installed chambers.
David Miller:
Right now, DC3 has 4 of 9 planes back in place. By the meeting I hope to have 6 of the 9. It should be back together by next week.
We have a problem with the preamp support trays for DC2. When Dave Northacker made them we felt that the openable windows of the chambers "should" face away from blocking magnets and stands. Unfortunately, DC2 faces into its stand and Northacker's cable trays have less than desirable access. It is about one week of work for Dave to rebuild the supports. Although not 100% necessary, it is very inconvenient as it is.
Terry Tope sent someone to start Nitrogen flowing into DC1 & DC2 yesterday.
Since we rushed to hang the chambers quickly, I was not able to HV train the chambers. I did do a short HV test and both Chambers hold 1800 Volts. I now need to do the HV training in situ (obviously in attendance) but need to have working gas in the chamber being trained. Argon-Ethane will work for this and is cheap and readily available here at Fermilab. But, I need safety approval to run the ethane since it is explosive gas. Of course, I also need Terry to vent the gas et cetera. Terry and Win, can you do this?
Finally, I would like to use a small portable CAMAC crate for the HV power supplies. Holger, can you get me something from prep similar to the one you and I used when we HV tested DC2? The one in Lab 6 is Wanda Newby's and needs to stay with her.
Pierrick Hanlet:
I spoke with Northacker yesterday wrt the DC2 preamp housing. He realized that he only needs to remake some bars for the structure and believes that he can finish this within a day.
For HV training, I propose that we put a couple of NIM crates in a rollable rack. This way we can put the HV for the PMTs and COW for the cosmic tests, and droegies for the chambers.
DC5 & DC6 (Iowa Chambers)
Terry Tope:
Here is my estimate for gas startup cost....
Gas
Detector
Period
Unit Cost
Cost
P10 - premix
TPC
1 month
6 x $107.81/bottle
$647
Methane
TPC
1.4 months
$201/bottle
$201
CO2
RICH
one time fill
6 x $27.80/bottle
$167
C4F10
BCKOV
estimate to start
160 ft3
$2000
C4F10
CKOV
one time fill
250 lb. @ $5000
$5000
Isobutane
DC1-4
5 months
1 x $337/bottle
$337
Ar
TPC, PWC5-6
1.6 months
1 x $200.91/dewar
$201
CF4
PWC5-6
1 month
1 x $3735 (pure)
1 x $2376 (less pure)$3735
N2
purge
practically free
DC - premix
DC1-4
D Miller ordered already
Ar-Methane-CF4
NCAL[?}
Total to start stuff up and operate for one month - $12,287
Leave out the expensive CF4 and C4F10 it's only $1552
Peter Barnes:
I've updated the rack and crate layout to catch up to changes in the TOF and CKOV readout. Unfortunately this forced a renumbering of all crates downstream of RR14.
The new (current) version is on the web at the usual place.
As usual, please check your detector and make sure I haven't messed up . . .
Alignment
Peter Barnes:
David Northacker has withdrawn from formal association with MIPP.
Last spring we (Livermore) and David set up an initial contract, which was very successful, I believe. In May I negotiated a follow-on contract with David which matched his requested hours and rates. As you can see from his email, below, he has had to decline this offer.
Despite the end of our formal relationship, he has continued to be quite helpful in pointing us to detector parts stores, etc. I have every hope that this will continue.
At 5:59 PM -0500 6/17/03, David_Northacker wrote: X-Authentication-Warning: fsui02.fnal.gov: dnorth owned process doing -bs Date: Tue, 17 Jun 2003 17:59:15 -0500 (CDT) From: David_Northacker <dnorth@fnal.gov> To: "Peter D. Barnes, Jr." <pdbarnes@llnl.gov> cc: Rajendran Raja <raja@fnal.gov>, Leon Beverly <beverly@fnal.gov> Subject: Re: please call me Hi Peter, After some discussion with my accountant, it has become clear that, from a business standpoint, committing to another contract with E907 would be unwise at this time. Considering my familiarity with much of the equipment that will be used by E907, however, I would be more than glad to provide whatever informational assistance that might be required over the course of the experiment. In addition, if there are problems that develop over time with any of the equipment I have knowledge of (detectors, gas systems) - even on an emergency basis - please feel free to contact me, and I will try to correct the situation as efficiently as possible. Thanks, Dave
The next call will be Tuesday, 1 July 2003, at 1:00 PM CDT in WH-2NE, Snake Pit.