In reply to Abd ul-Rahman Lomax's message of Sun, 07 Oct 2012 23:56:54 -0500: Hi, [snip] >These materials are not sensitive to "energetic photons," i.e., gamma rays.
Gammas are absorbed by all solid matter to some extent, during which process energetic electrons are usually produced, which should then leave tracks. However electron tracks are likely to be longer and narrower than heavy particle tracks, which combined with the low absorption rate of the gamma rays would probably result more in a slight background "fogging" of the medium rather than the distinctive short tracks made by heavy particles. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
