In reply to Jones Beene's message of Thu, 29 Dec 2011 14:28:38 -0800 (PST): Hi, [snip] >The monitor used by Rossi's team in January is specifically designed to detect >positrons, which must be there if there is to be H+H fusion. None were >detected.
There is a bit of a problem with this. The detector in question had two juxtaposed detectors, and a discriminator. However if the positrons don't annihilate somewhere between the two detectors then the gammas won't register, because the discriminator will toss them out. Now positrons, like electrons, only travel short distances in solid matter (mm's at best), so if they were formed several cm or more away from the line joining the detectors, then they would not be "seen". Rossi also said that he tried to place the holes where some would be detected, but not too many. It's easy to get the placement wrong. OTOH the overall lack of gammas detected generally, doesn't bode well for a fusion based reaction. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
