GlueX Target Design Mtg, April 21, 2014

Present: Chris Keith, Dave Meekins, Josh Pierce, James Brock, Matt Marchlik, Dave Butler, Alexandre Deur, Tim Whitlatch

Agenda

• Where are we now? Media:Target labor.pdf
• Cryo hardware status
• Gas system status
  • Exhaust from pressure relief
  • Plumbing on cart
  • pressure system documentation
  • Storage tanks
• 3D model/drawings Media:Target assy.pdf
• Target/Start counter interface
• Vacuum system update
  • Flange config
• Controls status
  • updated P&I
  • changes for subcooled config
• Installation cart update Media:Target cart.jpg
  • Tank config
  • Lifting
  • Controls/panel config
  • Alignment features
• Scattering chamber status
• Cell Fabrication Status
  • thermometry
  • Spare cell
• Schedule
  • Readiness review
  • Assy/test in EEL
  • Install/test in Hall

Info

• P&I Diagram Media:Target P&I.pdf
• Controls logic Media:Target controls.pdf
• Dave's SOW Media:Target new SOW.pdf
• Dave's Calcs Media:Target calcs1.pdf Media:Target calcs2.pdf
• Dave's FMEA Media:Target latest FMEA.pdf

Minutes

• James fabricating new cell with straight torlon base and aluminized Kapton(plus a spare) - parts due in this week
• Target group fabricating an interlock box to hard wire turn off the compressor - Dave Griffith
• Ok to put kill button in counting room for Target
• (2) 55 gallon Tanks are in
• Target group will procure one additional relief valve - 1 relief on each tank and 2 on gas panel
• Vent stack materials defined and on order - Hall D to assemble
• Joe Beaufeit to verify compressor power and ensure it is supplied in Hall D
• May 8th safety review - Tim to send proposal to Patrizia for agenda and pre-brief
• 5mil kapton window between target and upstream beamline is acceptable
• 4" gate valve (on order) and turbo for pumping on vacuum chamber and 1.5" valve on beamline (both in house) supplied by Hall D
• Target group will supply a diaphragm switch hard wired to turn turbo off
• Tim/Mark to meet with Fernando to determine start counter cabling/patch panel config.
• Vacuum chamber bottom flange to include 4" pump port and 4 - 2 3/4" conflat ports on order (Matt to check with Dave Meekins if class C ok)
• Chris sent email to Javier outlining responsibilities
• Hall D will deliver assembled cart to target group this week. It will have mounts for tanks but the target adjustment cartridges will not be available until next week
• Tim will get with Jim Dahlberg for more detail on fiducial points.
• Hall D to supply cooling water for compressor and temp sensors, target group to supply return flow instrumentation. Need to set turn off temps for compressor
• Need to look at required spares some day - Chris working
• Target group will buy vacuum instrumentation
• need to move 4" gate valve downstream and add tee for vacuum instrumentation
• James pointed out that a cover for the scattering chamber will be needed when removed from position
• Werth from the detector group is helping Dave B. with the controls
• Need to control start/stop of compressor (Werth to look at Labview setup)
• there will be a 20' long flexible gas line from the target to the vent line
• Chris to supply list of signal names to Dave by the end of the week.
• Discussion on location of controls crate and magnetic field magnitude - Tim to develop location vs. mag field layouts to help make the decision on the final location for the controls.
• Need to fit check Start counter hub to target hub next week to ensure proper mating