Magicsound. I'm curious as to your next steps and tests with your setup.
I've finished the fabrication and assembly of the MR3 cell, and successfully baked it out to 8E-6 Torr (very good!). I discovered a leaking valve in the gas manifold during the first D2 soak, and will be dealing with that in the next few days. So calibration should be possible this coming week, then disassembly to install two already prepared meshes, and bake out again. If all goes well, MR3.1 with Deuterium should begin in a week.