On Wed, Jul 10, 2013 at 8:40 PM, David Roberson <dlrober...@aol.com> wrote:
I assumed that you were describing an experiment where the exit direction > was measured...my mistake. You were right -- the setup was like this: d beam ---> | thin foil | ---> MeV particles ---> | Si detector | So the low energy d's entered the thin foil from the left and energetic particles exited from the right, through 1 um of substrate (which I think can easily stop a 350 eV beam). I was just pointing out that there was no detector on the lefthand side as well; if there was one, perhaps particles would have been detected. Eric