(Jordan, Owen, Jake, Gerardo)
The cryotrap cooldown continues, we continue to pump on the cryotrap volume with a turbo pump, the turbo is backed with a SS500 aux cart.
Small changes were the removal of the calibrated leak from the RGA tree, along with the removal of other components in preparation to install an incoming small ion pump next week.
Current pressure in the cryotrap volume is 7.38X10-10 Torr.
Jordan, Jake, Owen
The RGA tree was removed and replaced with the dedicated 75 l/s Starcell ion pump and a pumpdown port for the pump tree.
All flanges were helium leak tested, no He signal above the leak detector background were found. (~1.5E-10 Torr-l/s)
Volume is currently being pumped by a small aux cart, and the ion pump will be powered on tomorrow. The volume will then be introduced to the cryopump volume once the pump pressure reaches ~E-9 Torr on ion pump alone.
