This could be of interest to some:
The "bump" on the chart of slide 6 of this PPT document is residual D2 http://www.frascati.enea.it/nhe/link%20spettrometria.ppt The instrument used here is state of the art, and in a system with perhaps a 7 figure price tag, but it is easily possible for lesser quality mass-spec instrument to confuse the two - IF - the D2 has an extraordinarily high ionization potential, as does the Mills' (putative) species . and especially if the Dy2 has lost mass - having given up lots of energy, and shrunken into deep redundancy. Anyway the slide presentation describes the very complex and accurate mass spectrometer system put together by ENEA, the Italian National Agency for New Technologies, a divisions of the famous Frascati national Lab. http://www.enea.it/com/ingl/default.htm The mass spectrometer system was designed specificallyto find and document 4-He coming off of cold fusion experiments, and to distinguish that from deuterium, both of which have a mass near 4 amu. The problem is that D2 and 4-He have very similar masses, the difference being only 6 parts per thousand. Even after carefully scrubbing and gettering the CF cell output gas ahead of this instrument, so as to eliminate most of D2, there will be some residual. Consequently, in the slide there is a "bump" which is supposedly the remnants of D2 that couldn't be scrubbed. However, the fact that Frascati found mostly 4He make Mills' 1994 contention, mentioned below - almost untenable - UNLESS - the shrunken D2 also lost almost exactly the correct amount of mass to confuse the instrument. and no it could NOT lose the entire 22-24 MeV under Mills' theory AFAIK . begging the question of how much would confuse the instrument? One comment on The Letter to the Editor from John Sutherland - Hamilton, Ontario, Canada. It raises a point that should be clarified. He may be unaware that we can tolerate mention of Randell Mills or Blacklight Power here. Which is to say that when 4He is measured as the ash from LENR, and this has been assumed to be real helium, it could instead consist of one molecule of "two fractional hydrogen isotopes" - better known as the Mills hydrino, or more specifically the Mills' "di-deuterino." Back circa 1994, if memory serves, Mills mentioned this possibility in Fusion Technology. The ionization potential for the "di-deuterino" would be extremely high according to Mills, in the case of deep redundancy - and essentially there is little way they could ever be distinguished from helium except for the small mass difference which we have talked about here before - and which has actually shown up in very sophisticated Mass Spec charts before, as that small blip. I recall posting the reference to that chart, years ago, to vortex, and if memory serves it was done at Frascatti but I cannot find the reference now. Jones