Eric-- I was also questioning the idea of thermalizing gammas such as the .511 MEV from the beta+, beta- decay. It might be possible for the beta+ to be polarized in a magnetic field and interact with polarized electrons such that the back-to-back gammas were only emitted in a line. The gammas may then have a much greater interaction cross section with the lattice electrons, also aligned, and a better shielding effect would result.
I have not heard of such an effect, but it may be like an inverse laser phenomena. Normally gammas only randomly interact with electrons to loose energy; however, if the conservation of angular momentum is possible in a coherent aligned system, a gamma may be able to give up its entire energy and angular momentum in one interaction or at least in a much more efficient manner and without the normal scattering. Nevertheless, its seems likely that some gammas would not be aligned and would not be emitted such as to encounter a resonant coherent system. I would use co-incident counters to look for the back-to-back gammas at .511 MEV. It would be very interesting if such counters indicated a favored direction of back-to-back emission, for example, along the direction of the magnetic field or perpendicular to the field. They may also reflect variations associated with temperature, if lattice thermal vibrations screwed up alignment, and the magnitude of the magnetic field. Bob Cook ----- Original Message ----- From: Eric Walker To: vortex-l@eskimo.com Sent: Monday, March 16, 2015 10:26 PM Subject: Re: [Vo]:Hypothesis to explain Lugano, MFMP 'Bang!' and Parkhomov observations (MFMP) I wrote: β+ + β- → 2ɣ + Q (511 keV) I think that should be: β+ + β- → 2ɣ + Q (1.02 MeV) (I.e., two photons of 511 keV each.) Eric