just about the shielding, what about the chamber itself as shielding (what material/thickness?) for some kind of emissions. at least it should stop alpha and beta, protons, weak X, and reduce X, and maybe soft gamma.
2011/12/5 Berke Durak <berke.du...@gmail.com> > According to Nelson's slides, the gammas are in the 50 - 200 keV range and > are thermalized. Easy to do with very little shielding. And photons in > that > range wouldn't have been detected by Villa - this is clearly stated in > the abstract. > >
