October 4, 2010 CDC Meeting

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Meeting Time and Place

Monday October 4, 2010 at 2:30pm At Jefferson Lab, the meeting will be held in room ARC 428

Connections

To connect from the outside, please use ESNET
1.) ESNET: 8542553
2.) Phone:
+1-800-377-8846 : US
+1-888-276-7715 : Canada
+1-302-709-8424 : International
then enter participant code: 77438230# (remember the "#")

Agenda

  • Action items from last meeting
  • Discuss assembly drawings for CDC [Link to Slava's web]
  • Discuss straw tube and plastic feedthru futures
  • Inner shell
  • Downstream foam ring
  • Crimp pins from Acumetrics

Action Items

  • Produce drawings and fabricate 12 standoffs for upstream gas plenum (JLAB)
  • Review drawings for standoff for fabrication (CMU)
  • Discuss grounding needs of outer shell to upstream aluminum disc with Fernando (JLAB) Will stick with copper tape for now
  • Review current gas tube assembly and suggest an alternative (CMU)
  • Look at sealing tape alternative for covering outer shell gap (CMU) Gary running tests
  • Slava to send rohacel and PE tape samples to Gary
  • CMU to send sketches for gas fittings so Slava can incorporate them into our design
  • Slava to determine epoxy to use with rohacel
  • Curtis to propose date in Mid October for readiness review

Discussions

    • In attendance Gary Wilkin, Curtis Meyer, Naomi Jarvis, Slava Razmyslovich, Beni Zihlman, Tim Whitlatch
  • CMU received bolts from JLAB for support rods. They are fine for designed usage
  • CMU prefers larger fittings for gas tubes into endplates. CMU will send sketches so Slava can incorporate
  • CMU ok with JLAB idea of 4 arcs for downstream gas plenum rohacel. JLAB will supply arcs, CMU will glue in place
  • Discussion on stretching mylar or kapton over rohacel. It will be glued to inner and outer ring so should not bow out much. Also, rohacel standoffs can be bonded in between.
  • Slava to send some rohacel and PE tape samples to Gary for testing
  • Gary has setup a test for the "military duct" tape that Slava specified to see how long it lasts
  • Inner shell tests proved to work well with perforated ends and injecting glue
  • Curtis to propose date for readiness review in mid October
  • Curtis posted QA documents on wiki
  • Slava will find out exact epoxy to use on rohacel