From: Bob Higgins
The Demron specification says that it reduces the 662 keV
gamma from 137Cs by only 1% (not an attenuation factor of .01, an
attenuation factor of 0.99; I.E. almost no attenuation) which would be
expected. Yes, this material is not very effective for shielding gammas - at least for the type of reaction (proton addition) which is suggested. Furthermore, the alternative claim of some kind of leak-free photon attenuation or thermalization of gammas is a joke. No way. In short, by now it should be obvious to everyone who follows LENR that there are three important factors to rationalize. 1) The operative reaction does not produce gammas ab initio, nor even bremsstrahlung (and therefore cannot be related to a known nuclear reaction) 2) The Hagelstein explanation, or a version of it, where energy is released in staggered small packets, could apply but it is an extreme long shot - as even Hagelstein acknowledge that this is a violation of CoE and could never happen without some gamma leakage. 3) A new kind of nuclear reaction involving hydrogen, previously unknown or under-appreciated in physics as being exothermic, is at the core of LENR. Logically, #3 seems to be the only valid choice from my perspective - with the proviso that it could involve inner electron orbitals in some way, and thus be related to ZPE as the energy source (since ZPE is very relevant to electron dynamics in atoms) without the necessity for mass -> energy conversion. Jones
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