GlueX Target Design Review, January 24, 2012

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Present: Steve Christo, Jim Fochtman, Mark Ito, Dave Kashy, Tim Whitlatch, Elliott Wolin

Review Slides

Jim's Presentation

Notes

As recorded by Mark:

  • Steve suggests welded hydrogen line connections rather than fittings, fittings developed leaks over time.
  • Concern from Dave: distance of the condenser from the cold head. Jim moved it downstream to reduce volume of hydrogen in feed line.
  • Dave suggests larger surface contact for making the thermal short between hydrogen line and shield.
  • Hall B used boil-off helium to pre-cool target gas. We may add pre-cooler from higher temp head.
  • Dave suggested connecting the heater directly to the condenser, not the conduction tube.
  • Dave recommends high quality temperature and pressure instrumentation, well calibrated. Useful in knowing when the target is full by knowing position in the phase diagram.
  • Dave made had some comments on how to optimize the arrangement of the feed and return lines.