4He2+ "alpha" CUSP source under vacuum: IOS:IG1=7.3e-7 Torr. Electrical installations today.

I3 development source also at vacuum: 2.7e-6 Torr, which is better than when we started. TP gauge: 1.0e-7 Torr.

Later... Begin leak checking. Note: IOS:BP1 needs servicing. Its base pressure is ~30mT.

* Gas inlet on backplate already plugged off. Tighten. OK. Improvement in IOS:IG1.

 No other leaks found at this time.