more on contaminants

...with more levels and with ²⁰Ne:





It looks like the kinematics will let us separate out the ¹⁶O reaction products, so they shouldn't be a problem for the Q-value calculation, and there are no natural-parity levels in ¹⁹O between the 5.7046 and 6.1196 MeV levels that were simulated--and those ones give Q values just to either side of the 6.404 MeV ¹⁸O peak of interest, so the ¹³C contamination shouldn't be a problem either.

woohoo!