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Geo For Am241 exciter xrf,the previous Rap47 within a collimator with exciters in-front setup is not going to work How is it done now? Anyway impressive results Taray

12 hours or so into the long term aging test. No noticeable change in calibration at 5.9 keV, temperature stable etc. Heatsink warm to the touch like a puppy. 15 seconds and the peak search function

Charles what are you running Si-PIN HV and gain? Geo

George, could you provide the .mca file, please. Thanks. Charles

Results set at - 44 C Am-241

Geo Good on universal plug power settings One usually overlook the amperage rating. A right voltage with wrong amperage can be a disaster. Taray

More, better pics. Actual footprint is 3.5" X 4.5". Geo

Yes it is a universal one. It is important to use this one power supply, it can provide 2 amps, and that capacity is needed during initial turn-on phase of the cooler. Geo To: "XRF"

Geo Looking good Like the X-123 Amptek Much cheaper ?with Geo trademark Will be anxiously waiting for more display pics Taray

5V and USB cable to your laptop. Amptek inside. Runs on DPPMCA program.

Charles, Attached are some shots of a piece of Indian pottery I had here and a clay pot showing the full energy range and then the zoomed lower end detail. I see pretty much the same elements

Looks good Taray. I was surprised when I measured a "stoney" meteorite and still found so much iron + nickel!Geo

I meant ferromagnetic . The pic show rock attracted to Nd magnet Taray

Hi guys Here I have a meteorite specimen I bought from eBay more than 5 years ago .It was sold as a Zag meteorite which hit Moroccan Sahara in 1998. Apparently there many episodes of meteorite falls

The log base is just one of the many options that Theremino offers. I had not paid much attention to it until you brought it up. The log scale for energy is nice for me because I tend to be more

Charles, Interesting Am Au interference, I didn’t know they had gold in there. I missed your log space in the png as I was looking at your .mca file after looking at Mike’s and Taray’s with

Charles, Looks good. Note that the Au “peak” is really just noise(4 counts). Its good to have the Am and Np tags turned on to save time when doing energy ID’s. You don’t need to scale up

I've seen some of your microprobe reports, and they are amazing. If I was still a kid I would be on my way to U of NM right now......but alas, I'll have to be satisfied with the reactor operators

Yes, that's true, but I'm having fun in the same way, running down Trinitite peaks as reported from some of the best gamma spectroscopists in the world. I don't expect to add anything to their work,

These types of associations are fairly common; attached are a couple of pictures of columbite associated with monazite - a Nb-Ta oxide intergrown with a REE-Th-phosphate. Pretty easy to tell these