Author Topic: Bought a barium lamp but how to burn it...?  (Read 1646 times)
Zambi137
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Bought a barium lamp but how to burn it...? « on: January 17, 2023, 02:05:31 PM » Author: Zambi137
Hi guys, i bought a 1979 barium lamp, can anyone tell me what it was used for, and how to burn it? It has an e27 and an e14 base. I love it, never seen one before, but i could use some info. Thanks!  :)
« Last Edit: January 17, 2023, 02:07:33 PM by Zambi137 » Logged
James
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Re: Bought a barium lamp but how to burn it...? « Reply #1 on: January 18, 2023, 06:24:50 PM » Author: James
That's a fascinating looking device, it looks somewhat like an early form of flood-beam cathode ray tube.  Is there a phosphor coating on the end of the bulb?

The only reference I can remember to a Barium lamp was in a paper at the 1997 International Conference on Plasma Science, where I delivered a paper on sodium lamps for GE and the lady after me presented her research on low pressure barium discharge lamps.  That was from a university research department and the lamps were not commercialised, because the performance was not commercially interesting but the technology certainly was.  Are you sure your lamp was made in 1979 or could it be later?  Could it be possible that your lamp is from the 1990s?  This weekend when I have a moment I will dig out the paper and see if there are more details, or perhaps a link to other previous papers on barium lamps.
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RRK
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Re: Bought a barium lamp but how to burn it...? « Reply #2 on: February 21, 2023, 01:30:52 AM » Author: RRK
I remember seeing such a thing, related to demonstration of field emission microscope principle, of whatever it called. If I remember correctly, they prepared the needle with coating of evaporated barium atoms, then if done correctly, you can see individual atom images (!) on the fluorescent screen when high voltage is applied.
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RRK
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Re: Bought a barium lamp but how to burn it...? « Reply #3 on: February 21, 2023, 01:33:05 AM » Author: RRK
Note mentioning of FEM in the tube description. Here is the tube manual attached.
« Last Edit: February 21, 2023, 12:13:47 PM by RRK » Logged
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Re: Bought a barium lamp but how to burn it...? « Reply #4 on: February 21, 2023, 01:42:48 AM » Author: RRK
http://www.unm.edu/~physics/demo/html_demo_pages/7A6005.html

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Re: Bought a barium lamp but how to burn it...? « Reply #5 on: February 21, 2023, 01:52:59 AM » Author: RRK
more info https://www.ld-didactic.de/documents/de-DE/GA/GA/5/554/554605d.pdf

   
http://dodo.fb06.fh-muenchen.de/lab_didaktik/at-1-4.htm
https://www.experimente.physik.uni-freiburg.de/H_Atom_und_Kernphysik/versuchemitelektronenundmateriestrahlen/feldelemissionsmikroskop
https://vorsam.uni-ulm.de/vs/Versuche/EM/pdf/EM015V00.pdf
https://physik-phsg.de/Feldemissionsmikroskopie/aufbau6.html


[Admin edit - combined links into single post]
« Last Edit: February 21, 2023, 07:03:06 AM by Rommie » Logged
James
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Re: Bought a barium lamp but how to burn it...? « Reply #6 on: February 26, 2023, 02:52:28 AM » Author: James
Superbly identified, and what a fascinating device.  There is another example and still more info on the website of Giorgio Basile, http://lampes-et-tubes.info/dt/dt024.php?l=e
« Last Edit: February 26, 2023, 02:54:34 AM by James » Logged
Philips tigkas
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Re: Bought a barium lamp but how to burn it...? « Reply #7 on: February 18, 2024, 04:09:25 PM » Author: Philips tigkas
Well that's an interesting lamp! :wndr:
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Philips tigkas
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Re: Bought a barium lamp but how to burn it...? « Reply #8 on: February 25, 2024, 02:40:26 PM » Author: Philips tigkas
How does that thing even work. ???
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LEDs are like an apocalypse! They slowly take over the world wiping out every other type of lamp and fixture!

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