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Subject: Natural occurring Fluorite Activator to Fl: Europium Question 1: Is the amateur XRF setup capable of determining the presence / absence of Europium in fluorite? Question 2: If so, can the

Geo My biggest Pb surprise was black rubber automobile and garden hose. No idea why it's there but unmistakable.... Remember telling me about rubber automobile before.Couldn’t figure out where to

Dud, are all these wavelength shifts happening for the same reason as XRF but at longer wavelengths and instead of inner orbitals, use the outer orbitals, or is it a crystal thing (or both). Either

Good work Taray. Geo To: [email protected] Sent: Monday, November 9, 2020 7:48:13 AM Subject: Re: [XRF] Chinese water filter analysis Charles Next time if I am forced to use a plastic container for my

" With a little googling I saw that Br is a common fire retardant in plastic. I had not realized that Pb is also common in plastic. That is good to know as well. Charles " Trst everything. My lazy

CharlesNext time if I am forced to use a plastic container for my XRF,I gonna opt for clear plastic onesTaray

Hi Taray, I was scanning a specimen that I had lazily left on its black plastic mount. I was seeing a clear Br peak but was told (I believe by Steve Dubyk) that this was not likely. With a little

Hi guys Repeated this test with different sample setups. MCA 's are for Residue paper only ...dried Residue paper with cap Sample cap with residue paper Clean sample paper only Clean sample cap . The

Thanks Dud. I’ll have to take some time to digest this. Hitting the road now for New Hamster. 73 -- Ken Sent: Sunday, November 8, 2020 02:17 PM To: [email protected] Subject: Re: [XRF] Phosphorescent

Ken, Attached are some spectra from a cheap 405nm laser pointer and a 532 green. The 405nm lasers are direct lasers using a Gallium Nitride media and aren’t frequency doubled. The 532 nm laser

GeoMy first 2 test on the control ?sample was dry paper.Only this last control?was wet ?to make it??more like ?the sampleAll 3 show similar graphics?Residue is wet in all 3?Prefer it wet so it

PS I just looked at your ZAG.mca- no scatter at all- same setup? Geo To: [email protected] Sent: Sunday, November 8, 2020 9:05:41 AM Subject: Re: [XRF] Chinese water filter analysis OK. One more test- use

OK. One more test- use dry filter nothing on it ever. When you can. Then we can see where the scatter is coming from. Does this setup get that same scatter on regular testing of samples? Such as

Both samples have water squeezed out?Yes they are on the wet side

Fuel I used was propane torch. To: [email protected] Sent: Sunday, November 8, 2020 6:51:49 AM Subject: Re: [XRF] Phosphorescent Calcite Thanks Geo. Yes, Dud offered to run an analysis, so I’ll be

OK Taray. Is there actual water or is the sample dried? It should be dried. To: [email protected] Sent: Sunday, November 8, 2020 6:21:32 AM Subject: Re: [XRF] Chinese water filter analysis Geo The bg is

Thanks Geo. Yes, Dud offered to run an analysis, so I’ll be dropping a sample in the mail to him so he can run an analysis. He also mentioned checking the sample with a 405 nm laser pointer. I did

GeoThe bg is using Am241 exciter with no sample in front.The control is just plain filter paper soaked with RO water pressed against a plastic capI know it quite confusing?Feel free to ask any

Wow, that background count looks good Taray. Is there an .mca with exciter and no target? Please tell me again the conditions for "control sample water"? Geo To: [email protected] Sent: Sunday, November

Hi guys This is my latest update The pics are self explanatory The electrodes are screw in type and water level only covered the lower 2 thirds No adjoining surface is in contact. More importantly the