RE: [neonixie-l] Noble gas 'Neon' Chemical Symbols

2016-03-27 Thread Tidak Ada
I misinterpreted John’s posting. Sorry, John Van: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] Namens franetic Verzonden: zondag 27 maart 2016 14:36 Aan: neonixie-l Onderwerp: Re: [neonixie-l] Noble gas 'Neon' Chemical Symbols I don't think Pb-210 (being a decay

Re: [neonixie-l] Noble gas 'Neon' Chemical Symbols

2016-03-27 Thread NeonJohn
On 03/27/2016 10:56 AM, John Rehwinkel wrote: >> The problem, other than the high radiation, with placing Ra in an >> enclosed vessel is that it quickly reaches secular equilibrium with its >> decay products down to Pb-210. > > Oh, there's another problem. Various phases of the decay chain

Re: [neonixie-l] Noble gas 'Neon' Chemical Symbols

2016-03-27 Thread John Rehwinkel
> Radium is the source of radon. So are some isotopes of thorium. > The problem, other than the high radiation, with placing Ra in an > enclosed vessel is that it quickly reaches secular equilibrium with its > decay products down to Pb-210. Oh, there's another problem. Various phases of the

Re: [neonixie-l] Noble gas 'Neon' Chemical Symbols

2016-03-27 Thread NeonJohn
On 03/27/2016 07:06 AM, Tidak Ada wrote: > May it be there is a getter like material that can produce RN, like the > Pb-210 John mentioned? Radium is the source of radon. The problem is its intense radioactivity. Indeed, a gram of radium defines the Curie, the traditional measurement of

[neonixie-l] Re: Early ZM1000 nixie failure

2016-03-27 Thread franetic
Thanks to all for the replies. I don't think I picked a wrong value resistor (there are only 3 values of through-hole resistors in my box), so I'll go with the rogue tube explanation. The affected tube didn't glow any brighter, nor did it glow in a different color. Anyway, I cannot check the

Re: [neonixie-l] Noble gas 'Neon' Chemical Symbols

2016-03-27 Thread franetic
I don't think Pb-210 (being a decay product of Rn-222) will ever produce Rn. Perhaps the best bet (and still very unfeasible) is Radium Ra-226 which decays directly into Rn-222 via alpha decay with a half life of 1.6 kyears. (That's how the first emission spectrum of Rn was obtained.) That

RE: [neonixie-l] Noble gas 'Neon' Chemical Symbols

2016-03-27 Thread Tidak Ada
May it be there is a getter like material that can produce RN, like the Pb-210 John mentioned? eric Van: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] Namens Jeff Walton Verzonden: zondag 27 maart 2016 5:31 Aan: neonixie-l@googlegroups.com Onderwerp: Re: [neonixie-l]

RE: [neonixie-l] Noble gas 'Neon' Chemical Sympols

2016-03-27 Thread Tidak Ada
Interesting, but € 75,- is a bit expensive…… If I ever could obtain Pb-210. eric Van: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] Namens John Rehwinkel Verzonden: zaterdag 26 maart 2016 17:31 Aan: neonixie-l@googlegroups.com Onderwerp: Re: [neonixie-l] Noble

Re: [neonixie-l] Noble gas 'Neon' Chemical Sympols

2016-03-27 Thread JohnK
Build a Tesla Coil in the basement? John K - Original Message - From: Jeff Walton To: neonixie-l@googlegroups.com Sent: Sunday, March 27, 2016 2:01 PM Subject: Re: [neonixie-l] Noble gas 'Neon' Chemical Sympols Lots of basements with radon to spare... Too bad you can't