开云体育

*It's on the way, any corrections, new ideas, comments welcomed.* *Geo* > > >

Steve's piece is the "Lump" and is identified as such on the .mca 's I own the Blob and the triangle as shown stacked in the pictures. They are solid iron (mild steel) all the way through. There is no

Geo, Please send the MCA files, pictures are pretty but you can’t interpret anything from them other than there’s no Fe at the cursor in this case. Is this the Fe Blob, Steve’s piece we’re

Iron Self XRF in Trinitite follow-up- as expected ordinary Trinitite from the ground shows little to no self excited iron XRF:

*OK. The blob is solid, actually 1930's grade "mild steel". It's the top piece in this photo:* *When excited by a tube and XRF is measured, you see iron: * *When it is Gamma Scanned with a low

Pb and Fe alright. So what does the blob trinitite show when it’s just self excited? Why do some show Fe and others don’t? Dud Sent: Sunday, October 11, 2020 3:24 PM To:

and a workup from that old .mca The stuff between the Ag peaks is mostly junk from the Am exciter. Geo

a better scan, full 3600 seconds this one:

Here you go Dud, 2014, pure metal (99.999%) Silver. SDD Detector, 8XAL @ 22.5 degrees

OK I understand. Yes there are things that show up from the exciter for sure.... Np X-Rays, 59.5, gold or Palladium for one, then the stainless steel components as well as the shielding, but they are

No just the Am source into a pure metal that is free of Fe to see if the Fe peak is due to the am source. Then try the same with no sample just the source It needs to be done with the same source

"Has anyone ever run a background count into a pure metal or silica glass to see what the Am / Fe source contribution is or isn’t?." Dud do you mean a basic no source, shielded background test of a

Pa-234m? X-Ray Emissions Intensity ? ? Energy? ? Assignment (%)? ? ? ? ? ? ? ? (keV) 0.2500 ? ? ? ? ? ? 13.618? ? ? ?U La1 0.2300 ? ? 98.434? ? ? ?U Ka1 0.2000 ? ?

Has anyone ever run a background count into a pure metal or silica glass to see what the Am / Fe source contribution is or isn’t?. Has anyone run a full energy gamma spec on the piece? What kind of

Ingrowth of U-238 progeny over 75 years. We mentioned in an earlier post that they second source of the same exact Uranium L-X-Rays in Trinitite is the creation of?U-234 by the U-238 decay

Looks good Mike. Excellent work and Charles' software is beautiful If you can check the peak height count # of that 17.xxx X-Ray from the Trinitite, then do a run with same calibration on Am only,

Slightly better. Mike L.

I think all the lines are associated with nuclide decay.? No direct florescence.? I think. Mike L.

Good, will watch for that Charles. Thanks Geo

Mike Loughlin has already done this, albeit not with the exact same specimen. It is a specimen that we "collected" at the same time. I am sure he will post his results soon. Charles