Hi Nick, I am doing some experimental work on the subject of lifespan due to sputtering.
Could you provide the full reference, including if possible a chapter or page number, for Weston's 50% threshold please? You mentioned it in your first post. Thanks in advance. Regards, Alex On Tuesday, October 1, 2013 4:04:26 PM UTC+1, Nick wrote: > > The lifespan of a nixie is not a precise science - end of life may be > considered as when luminosity drops by 50% (Weston), sputtering destroys a > cathode, cathode poisoning renders a glyph unreadable (though this may be > reversible), mechanical damage etc. > > I was wondering about the luminosity and sputtering issue. In my > experience, nixies rarely run at over 35 - 40C unless heavily over-driven. > Would the introduction of a small amount of a halogen, probably chlorine in > this case (maybe iodine?), allow a low-temperature halogen cycle to > re-deposit any evaporated cathode? I'm well aware that mercury (Hg) is > introduced for a similar reason, but a halogen may be safer (in today's H&S > climate) if it works at all... > > I'm not a physical/inorganic chemist, so thoughts welcome.... > > Nick > -- 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/384e33af-2754-4e97-a74a-b339a49d503c%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.