Randall,
Wow that¡¯s going to be tough. #1 it has a Ka of only 1.04 keV with a 1 4% yield and # 2 its behind glass sucking up that 1.04. I can't say I've ever seen anything below Al and Al is tough in low concentrations.
Down in that region you want a He or vacuum atmosphere and a detector set up for the low energies. It would be nice to see as Na Mg, K, Ca and Al will determine the basic mineralogy composition you're looking at.
It is, however, fun to play with in water.
Dud
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-----Original Message-----
From:
[email protected] [mailto:
[email protected]] On Behalf Of Randall Buck
Sent: Wednesday, October 28, 2020 2:27 PM
To: XRF
Subject: [XRF] How about Sodium?
I asked before with no response but since you are now down at Ca, it seems appropriate to check again.
Does anyone want a small sample of sodium metal, sealed under argon in glass.
Sounds fancy but it is (they are) just low pressure sodium vapor lamps pulled from
working fixtures. When cooled, the sodium vapor condenses to a small lump at the tip
of the bulb (they normally run upside down).
(I have the sockets and the 120VAC ballasts as well)
Randall
