From: Eric Walker
I provide two facts from the Rossi experiments. No gamma. No tritium. ... These are facts, not assertions. [snip] You assume that d+d fusion will result in a gamma, and then when no gamma is seen, you assume that d+d fusion in NiH is not possible. You have assumed away some mechanism that might be fractionating the gamma. Not exactly. I’m glad you brought this particular detail up - because that is not precisely what I am assuming away. What I am stating is that even if “fractionating” some gamma radiation is remotely possible, in principal or as a hypothesis - and there is no proof or even good evidence in physics that this is possible, or can be accomplished at all at high temperature … but even if it can - that problem pales when it is realized that any such mechanism MUST be completely leak-proof or else there will be fatalities. Complete shielding by fractionation would be infinitely more unlikely with highly penetrating radiation than good shielding. We know from cosmology that gamma radiation can escape from neutron stars – yet, give me a break, proponents want to suggest that a few grams of nickel powder will shield for gammas- and not just a little bit but completely 100% shield. Think about the absurdity. The risk/reward situation is such that 99% or four nines for leakage is not nearly good enough. One cannot simply propose the leap that goes all the way from partial fractionation to complete blockage. Do not overlook that fact that at the intense level of thermal output of the Rossi reactor, even a leakage of one part per billion would be fatal to Rossi or anyone else. That is the problem. Not so much that it might work some of the time, but that do be valid as a commercial item - it has to happen all the time with no exceptions. It is not merely the lack of a known phenomenon in mainstream physics for “fractionating gammas” but the fact that for fifty years, billions have been spent by the US and USSR looking for light weight gamma shielding in order to have reactors carried by bombers. There is no indication that had any success at all. Gammas are very penetrating, and that makes it baffling tome - as to how this fractionation thing has gotten any momentum at all.
