In reply to Jed Rothwell's message of Wed, 19 Oct 2005 10:29:56 -0400: Hi, [snip] >See: > >http://lenr-canr.org/acrobat/Bernardinianomalouse.pdf > I was confused by the following: >The analyser accepted the detected signals only when they were above a >threshold energy value (~ 800 keV) and in coincidence within a pre-fixed >resolution time >(< 500ns). It seems to me that a gamma emitted by the sample would intercept either one detector or the other (since the sample was between the detectors, and hence they are in opposite directions as far as the sample is concerned. Whereas external gammas have at least some chance of passing through both detectors. Therefore it seems to me that what they have measured is some of those external gammas, while carefully *excluding* most from their own sample. Only when their own sample emitted two separate gammas in opposite directions within 500 ns of one another would they be detected. Did I get it wrong, or did they? Regards,
Robin van Spaandonk http://users.bigpond.net.au/rvanspaa/ Competition provides the motivation, Cooperation provides the means.
