Mu-metal is a nickel-iron alloy that is notable for its high magnetic permeability. The permeability makes mu-metal useful for shielding against static or low-frequency magnetic fields - but the same feature should make it an excellent lattice for LENR in the sense that shielding is a function of a material being able to internalize magnetic fields.
And there is an emerging cross-connection between Rydberg states and magnetism, not to mention the binding energy of the Dirac sea is itself a whole fraction (1/2) of Ry which is the Rydberg unit of energy. Co-Netic AA, is a brand of Mu metal consisting of nickel(80%), iron(15%), and molybdenum(5%) with permeability of 30,000 or more. It was mentioned by Dr. Claytor recently at the MIT Colloquium as giving his best results. If this, or a similar alloy was to be converted into a slightly oxidized powder, with added potassium - it could be an interesting choice for the kind of LENR where magnetic oscillations are being optimized - as the way to use protons to cohere vacuum energy. There would be thermal gain, and no radiation. In terms of Rydberg multiples, this particular mix would have 10 unique Rydberg levels in the ionization potential of its various constituents or 12 if we count whole fractions. Jones
<<attachment: winmail.dat>>