That is also the purpose of using a getter too right? Remove the majority of the gaseous impurities before back filling with neon/penning gas mixture?
On Thu, Sep 14, 2023 at 2:41 PM gregebert <gregeb...@hotmail.com> wrote: > OK, that's once the tube is pressurized with the desired gas. However, to > cleanse the tube of impurities, it must be baked-out and evacuated to a > rather high vacuum. Even at a high vacuum of 1 micron, there are still an > extraordinary number of gas molecules present, on the order of 10^16 per > liter. For home-made tubes I would actually want to re-evacuate the tube a > second time, and refill, to get even more impurities removed. > On Thursday, September 14, 2023 at 10:28:06 AM UTC-7 Miles Thatch wrote: > >> From he Drive books archive >> Nixe Tube Data > NixieGas.pdf >> >> I was using the following excerpt from this book. Is it wrong or am I >> getting something mixed up? >> >> On Thursday, September 14, 2023 at 11:43:46 AM UTC-4 gregebert wrote: >> >>> I think you mean 10-50 microns (which is 1000 timer lower), not 10-50 >>> Torr. One atmosphere of pressure is 760 Torr (760mm Hg). >>> I've seen neon-sign texts stating the need to get below 1 micron for >>> proper bombarding, and I imagine nixie tubes are similar. >>> >>> On Thursday, September 14, 2023 at 6:57:51 AM UTC-7 Nick wrote: >>> >>>> Look at Dalibor's videos. >>>> >>>> On Thursday, 14 September 2023 at 12:08:57 UTC+1 milesan...@gmail.com >>>> wrote: >>>> >>>>> Good day. >>>>> >>>>> Since we require to reach vacuums of 10 - 50 torr depending on the gas >>>>> mixture. What sort of vacuum pumps are we looking at sourcing to achieve >>>>> those levels? >>>>> >>>> -- > 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 view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/ea949a55-26f7-41f0-9118-7f190f9d9fafn%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/ea949a55-26f7-41f0-9118-7f190f9d9fafn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAOX%2BRHKzBPfUKD9PBEq%3DH7p6OLhMOOrd4H_Mo-ayBXbzsR8vAw%40mail.gmail.com.
