Recent content by rphys

It isn't a Bragg curve, but by clicking the "stopping range / tables" feature I can get the range data for the alpha particle (below). The only problem is I can only seem to input an element (e.g. helium) and not an alpha particle itself. Is 37.60 mm about right for a 5.156 MeV helium / alpha...

I'd like to plot a Bragg curve for an alpha particle in air. I'd like to make one plot for 239Pu (5.156 MeV alpha) and one plot for 238U (4.267 MeV). Does anyone know how I can do this? I would like a basic plot of stopping power (MeV/cm) vs path length (cm). Thank you

So would you say the book is referring to fluorescence photons emitted during decay to S00 as being the ones with sufficient energy to cause re-excitation? I am tempted to repeat what the book has said (only one case) and keep it vague because I am not sure about this.

I've attached an image from the book "nuclear physics" by John Lilley. It says "in only one case is the restulting photon energy sufficient to cause re-excitation". My question is what is this one case? I recall my lecturer saying only decay to S01 is sufficient to cause re-excitation, but I...