1 Stony Brook Update T.K. Hemmick for the Stony Brook Crew

2 Production Underway Again… Three cycles of 4 GEMs will complete HBD. –If no slipups… Plan to use extra pizza boxes to shave one day per cycle. 9 days possible…

3 Lots of Small Jobs Completed Inspect HBD #2 for materials –Remove foam sticky pads –Replace with bent solid wire Clean up the tent. Replenish supplies of consumables Replaced cryo compressor (now repaired) Cleansing pump. –Empty evaporator. –All boats heated way above CsI temp. Sorted GEMs into associated pizza boxes. Restart Glovebox and regenerate scrubbers. Replace gloves (hypalon on order…not sticky)

4 New GEMs look different Some of the GEMs have areas that are either discolored or have “scratchy” patches. Cleaning made no difference to this appearance. Discoloration

5 New GEMs Look Different Some are super shiny (but coarser texture) Shiny & RoughMatte & Smooth