In reply to Eric Walker's message of Wed, 4 Dec 2013 21:01:09 -0800: Hi Eric, [snip]
If they were limited to the surface, then finely dividing the substance should massively increase the gammas detected, since the surface area increases dramatically. Had that been the case, I suspect it would have been noticed. (Not that I am aware of.) >On Wed, Dec 4, 2013 at 11:36 AM, <[email protected]> wrote: > >Surely that depends on the distribution of the radioisotope within the >> metal? >> Since you created this hypothetical substance, it's up to you to say >> whether or >> not that's the case. ;) >> > >No doubt. :) But for my hypothetical substance, I will choose a realistic >substance -- an ampule of ordinary cesium (pure but not enriched in any >way). How do we know that any of the gammas emitted by an ampule originate >from within the bulk of the cesium rather than being limited to the surface? > >Eric Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
