Beam remained on FC6 overnight. Beam was used for a tune check this morning. At noon today beam was switched to 4He.

Later... Outcome of 4He development with Supernanogan: beam comes with other isotopes. e.g. 12C3+ and 16O4+. Verdict: 4He1+ beam is better produced with the MWS.

Later... By request, set up source for 74Ge beam again. ~30pA on FC6 by ~midnight.