July 22, 2021 KLONG Design Meeting

Meeting Time and Place

Thursday July 22, 2021, 1pm Bluejeans https://bluejeans.com/465620466

• Present - Hovanes Egiyan, Moskov Amaryan, Stephanie Worthington, Keith Harding, Igor Strakovsky, Tim Whitlatch, Mark Stevens

Agenda

• Minutes from last meeting https://halldweb.jlab.org/wiki/index.php/July_08,_2021_KLONG_Design_Meeting
• Media:KLONG_Be_target_overall.pdf
• Beryllium quotes - $11K
• Beryllium sealing
• Progress on Tungsten cooling
• Poly compression
• Preliminary 3D Model
  • Support levelers/rollers
  • Tungsten cooling
  • 7 cm tube downstream to allow cooling tubes for tungsten
  • Be target holder
  • lead geometry/weight
  • Borated Poly geometry
• Heat absorbed by Be and Tungsten (.6kw and 6Kw respectively)
• Requirements:
  • Cool tungsten plug to below temperature that affects lead (327°C)
  • 5 cm beam tube to PS and 6 cm to final target
  • Moveable out of beamline
  • Be 98% pure or better