E907 Installation Conference Call Minutes

13 June 2002	Location	Phone Number	Access Code
	WH-11SW	775-785-1944	536495

Contents

Agenda

Progress Updates and Issues

1. Upstream Beamline
   1. BEAM - Beamline
   2. UBL - Upstream Beamline Detectors
2. Targets
   1. TGTW - Target Wheel
   2. CTGT - Cryo Targets
   3. NTGT - NuMI (MINOS) Target
3. TPC - Time Projection Chamber
4. Magnets
   1. JGG - Jolly Green Giant
   2. Rosy
5. CKOV - Cerenkov
6. DC - Chambers
7. TOF - Time of Flight
8. RICH - Ring Imaging Cerenkov
9. NCAL - Calorimeter
10. DAQ - Data Acquisition
11. MC - Monte Carlo
12. Installation
    1. Alignment
13. MC7 - Enclosure and Counting House
14. Meetings
15. Project Management

Next Call

---

Agenda

Time (CST)	Dur (min)	Lead	Topic
3:00	5'		call setup
		Chuck Brown	BEAMS
		Mike Heffner	Beam CKOV
		Ron Soltz	TPC
		Jim Ellermeier Leon Beverly	Magnets MC7 Preparation
		Ingrid Fang Gary Johnson	CKOV Stand design and drawing status
		Peter Barnes Mark Messier	RICH support stand RICH electronics
		Leon Beverly	Chamber testing.
		Tim Bergfeld	TOF
		Virgil Bocean	Alignment
			AOB

Progress Updates and Issues

Peter Barnes' meeting summaries in italics.

Upstream Beamline

Stnading MCenter Beam meeting established, but time and place not yet frozen.

Beam tuning proposal: tune with 10¹¹ and detector voltages off, or use wire chambers, which will be more sensitive.

E907 is a beam dump - need to look at produced junk (e^-, m) and shielding. Going to ask Molkov to start MARS studies.

BEAM - Beamline

UBL - Upstream Beamline Detectors

Beam CKOV

Questions:

• Beam window sizes and materials?
• Recoat mirrors? - RR says yes.

Targets

TGTW - Target Wheel

CTGT - Cryogenic Targets

NTGT - NuMI (MINOS) Target

TPC - Time Projection Chamber

Stand:

Ingrid and Peter met this morning and selected the TPC cart conceptual design. They also verified the proper positioning of the TPC in JGG.

Magnets

JGG - Jolly Green Giant

Rosie

Welding requirements

Bob Wands reported results of stress calculation: 200 kpsi, split equally between top and bottom. Side straps should be enough, but still need to address the center sections. Shimming between coils and pole tips not complete.

CKOV - Cerenkov

Cart and DC2 Stand drawings are out for bid.

Erickson will have MAB estimate for DC2 Stand early next week. Materials will be $1.3k (direct).

DC - Drift Chambers

Preamp Support and Air Manifold

Air flow direction was perpendicular to cards; keep it this way? There are limited attachment points. Should we drill and tap into the frame (yuck!) or use structural epoxy to attach an angle (better). Will this interfere with chamber mounting? Will cables come out both sides of the chamber, or only one? Depends on the allowed cable length to the discriminators.

Testing

Can now read out an entire chamber; many oddities. Adam worked on one section and cleaned it up; mostly due to bad TDC modules. RR to raise this issue with PREP.

Are there testing jobs suitable for a summer teacher?

TOF - Time of Flight

• Testing scintillator and PMT samples. Limited to (5 cm)² trigger area, so data rate is s l o w.
• Making Helmholtz coil to test shielding; ready in 4-6 weeks.
• Retrieving USC RPC chambers from FOCUS for trigger.
• Optimizing gluing and assembly steps.
• How much material is allowed in the ROSIE aperture? RR to study this next week, considering 5 cm and 2 cm material, and the impact on momentum resolution, particle production, and p⁰ conversion.
• Use TOF in trigger? (USC has experience, hardware) Need trigger group.
• Still need more ROSIE fringe field information; RR to talk to Wands to get the right study.

RICH - Ring Imaging Cerenkov

Rails arrived 6 June, stands to arrive 19 June. Rail installation to start early next week. Bridge for MBottom cable alcove nearly complete in MAB.

NCAL - Calorimeter

Need assembly drawing; lowest drafting priority, so no progress this week.

DAQ - Data Acquisition

MC - Monte Carlo

Installation

Alignment

MC7 Enclosure and Counting House

Meetings

Project Management

Next Systems Call

The next call will be Thursday, 13 June 2002, at 3:00 CDT in WH-11SW.