[Jeff, Ian, Daniel]

We put the Agilent TwisTorr 74 on the 4.5" to 2.75" 4 way reducer cross and tightened the bolts to 20 Nm as per the manual. We had to put the bolts up and use nuts as the TwisTorr 74 does not allow for 2" long bolts to be placed through it. We used these clipped 5/16" ID washers and they worked very well. I connected the fan to the turbo pump and the turbo pump to the IDP 7 scroll pump. I connected the turbo controller to the turbo pump, to the pressure gauge, and to the fan. I did not connect it through the computer, plug it into the wall outlet, or put in the interlock bypass D-Sub. We put the IDP 7 scroll on the platform and flipped a switch so that it expects 115 V from the wall, but we did not plug this in either.

We connected the 1/4" ID tubing from the N₂ source to the up-to-air valve. I couldn't get the hose clamp to work for the barbed adapter, but it shouldn't matter. We briefly purged the tube before installing it on the up-to-air valve.

I cleaned with puffs of air the 4.5" CF window, AR coated for 780 nm light and installed it on the vacuum chamber opposite the 2D MOT. I used the molded viton gaskets which worked very well here by staying next to the knife edge (I tried a few weeks ago to no success). I tightened the 1" long 5/16-24 screws to 2.2 Nm. The chamber is now completely sealed.

While it works, the KF25 tubing is too long. We should get 30" long tubing instead of 48" long tubing and use the 48" long tubing for the GQuEST IFO vacuum chamber that it was originally bought for.

Tomorrow, I hope to turn on the pumps.