Did any of you try with good old Thorium? I have been playing with some gas lamp mantles, the retail item that contains more Thorium, and they emit a very happy dose of alpha and beta particles. Way more than what you get from uranium marbles.
On Monday, February 10, 2014 12:27:44 PM UTC-3, NeonJohn wrote: > > > > On 02/10/2014 09:32 AM, Tidak Ada wrote: > > But Ra228 will be more efficient in this case, for it is a ß-radiator. > > However, it only has an half life of 69 months. > > Actually no. Ra-226 in equilibrium with its decay chain is an > "everything emitter". It was widely used in tubes such as radar T/R > switchs before cheaper and cleaner isotopes became available. The most > common is Ni-63 with a 100 year half-life. I have a 1st Gulf War > vintage nerve gas detector that uses Ni-63 and of course the venerable > Krytron. I've never heard of it being used in a display tube. Kr-85, > being a gas, is much easier to license and handle than any solid isotope. > > John > > > -- > John DeArmond > Tellico Plains, Occupied TN > http://www.fluxeon.com <-- THE source for induction heaters > http://www.neon-john.com <-- email from here > http://www.johndearmond.com <-- Best damned Blog on the net > PGP key: wwwkeys.pgp.net: BCB68D77 > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/0f89639d-33a8-4f56-afc2-a2187077f9fc%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
