On Fri, Dec 2, 2011 at 12:30 AM, Berke Durak <berke.du...@gmail.com> wrote:
> 500 keV -> mu rho = 1.614e-1 x 11.34 = 1.83 -> 17 cm > 400 keV -> mu rho = 2.323e-1 x 11.34 = 2.63 -> 11.8 cm > 300 keV -> mu rho = 4.031e-1 x 11.34 = 4.57 -> 6.80 cm > 200 keV -> mu rho = 9.985e-1 x 11.34 = 11.32 -> 2.74 cm > 100 keV -> mu rho = 2.323e-1 x 11.34 = 62.93 -> 0.49 cm > > These are not unreasonable thicknesses, especially because: > But Villa measured no gammas above background with *no* lead. > > (a) Rossi doesn't want to give the exact energy (obviously). 500 > keV sounds like a round number, anything between 200 and 500 keV > could be informally called that. > Villa would have detected gammas in that range. > (c) We don't know if the gammas are emitted isotropically. > The nickel is a power. It's pretty hard to imagine a preferred emission direction with randomly oriented reactants. > > > but that doesn't fit the conceivable reactions. So, maybe they're > > inconceivable. > > Not much point in speculating about what is conceivable and what is > not, since if all this is for real, we're talking new physics here. > So they say. It would be more credible if someone could imagine a reaction that produces heat and no radiation.
