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Is there a what looks like a UHF SO-239 connector on the head or the CU series power supply or your version of the LIXI PSU? om: GEOelectronics@... To: [email protected] Sent: Sunday, January

This one is the PS-500-OS power supply- this version has no HV power supply inside, it is in the head. There are two versions, one controls the HV generator in the head with 12V signals, the other has

I have 2 Kevex CU015 power supplies for the head and a LIXI PS-500-OS. What setup are you running? Dud Sent: Sunday, January 24, 2021 8:31 PM To: [email protected] Subject: Re: [XRF] Obsidian Was that out

Was that out of a LIXI and has a LIXI controller or does it use a Spellman power supply? To: [email protected] Sent: Sunday, January 24, 2021 8:25:00 PM Subject: Re: [XRF] Obsidian No they’re just

No they’re just sitting there I haven’t fired it up with anything yet. The plan was to use them with the SiLi detector when I get a load of LN2 but the SDD is so much easier and nicer. Can you run

Dud are you using your Kevex? If so on what? Geo To: [email protected] Sent: Sunday, January 24, 2021 5:01:02 PM Subject: Re: [XRF] Obsidian That should be the same one I have here a Kevex W micro focus.

That should be the same one I have here a Kevex W micro focus. I don’t see why you need to have 2 positions or a detector collimator, it will work fine with just a close up detector and no

Low energy is for below W L peaks, like K and Ca. Low energy from sample can't travel far in air, needs to be really close, the W L lines don't interfere with the wanted rays. What I have now is the

Geo, What is the high energy position and purpose for both? I’m seeing W in the spectra is this the high energy position run? What Is the purpose of the W 1mm collimator on a 25mm detector? The

Back to Obsidian. One of my wife Betty's finds in New Mexico A nice lump with a broken tendril the end of which is glass smooth. Perfect for micro beam XRFing. 1mm beam and 1mm hole in sensor's W

More TXRF testing with improved geometry and 1mm gap for beam:

Back to this version(TXRF)? for some more test results. Keeping the same basic idea, we added a tungsten shield/ with integral 1mm tungsten collimator to the detector, allowing the sensor to be moved

Hi Taray and thanks for the updates on medical X-Ray technologies. No I never have worked on or with medical grade machines of any type. I am a federally licensed Radar technician? and could easily

Geo Are you using a medical grade xray setup?Recently, some??medical??x-ray manufacturers have produced machines that replace the conventional 60-cycle AC high-voltage current of the x-ray tube

Geo, Well this sucks. I think you’re right and they are hardening the beam by dumping the low energy components to reduce skin dose. What is your x-ray tube manufacturer and model number? Is this a

That's correct. Same as the ratio chart I showed.Nothing at all at 15 keV or lower. Looking at the beam directly with a sensor tells why. There must be a compound filter in or right at the output

Geo, Reset the 93 keV energy span to 64 keV, you’re losing almost half of your energy resolution which you’ll need down in the low 15 keV energy range. Set the gain for a 64 keV span with 2048

Geo, Moist of these MCA files have nothing in them 50kV, 40, 30 seem ok but 20 have very few counts and 15 has no counts same with all. You are getting no signal below 30 The data are very noisy as I

Theory says Fe and Ca should XRF with quite low energy excitement = "just above the K-edge". . Fortunately the test was left as-is last night, so it was easy to redo and save example .mca's. so here's

GeoHere is an interesting article about trinitite.If you refer to page 76,it states that Ba is also being contributed by barite from the sandI don’t own one so I cannot comment further?Enjoy the