OK. I'm trying to make notes of the exciter source when the scan is XRF and note "Gamma Scan" when the scan is of only internal radiation from the subject material.?
Obviously radioactive decay leads to auto-XRF in many cases but this?
is of the same atom, since the electrically charged decay particle and subsequent photons must pass through the electron shells of that atom as it exits.
?One of our interests is the probability of accidental
XRF being excited in a different atom.
Geo
----- Original Message -----
From: taray singh via groups.io <sukhjez@...>
To:
[email protected]Sent: Thu, 05 Nov 2020 11:08:56 -0500 (EST)
Subject: Re: [XRF] Uranium Ore , Depleted Uranium, Natural Uranium (Unat) Compared
Geo
The spectrum was done with external exciter Am241
Yes I post replies when there are attachments via group site
Was not aware of pic sizing issues at?the receiving end?
Ok will check if out
Taray
On Thursday, November 5, 2020, 11:39 PM, GEOelectronics@... wrote:
Good scan on the granite. Was this excited (XRF)? ?or only internal (Gamma Spectrum Analysis) mode?
Some of us have a particular interest in the Gamma Spec mode (no exciter, just the Si-PIN sensor) for different reasons and soon there will be a TOPIC to gather all those type reports and comments into a theme,
In that same thought, we constantly fight Cosmic Ray Muon excitation of? internal XRF in our probe shields.? That's why we uses graded? atomic weight layers, each of a lower Z to shield against those spontaneous characteristic X-Rays.
Note- if you want to insert an attached picture into the text area of a post, it must be done on the Groups.io vs email reply, when you load picture into the? attachment window, and before clicking the ADD button, click on the picture in the preview box and Ctl+C save it to your clipboard, then go ahead and push ADD button, which should return you to the text area. Once there, find a place for the picture and click on that space, then Ctrl+V paste it there. Supposedly the GROUPS.io resizes it for the email delivery.
On the email delivery pictures, is anyone having issues that the pictures are too large??? If so we can request that members resize them down to 640 X 480, which still leaves the attachment version full size for closer examination if needed.
Geo
From: "taray singh via groups.io" <sukhjez@...>
To: [email protected]Sent: Thursday, November 5, 2020 8:35:03 AM
Subject: Re: [XRF] Uranium Ore , Depleted Uranium, Natural Uranium (Unat) Compared
Geo
Good topic.
Some? radioactive? ores are naturally link to certain elements.
Granite contains small amounts of Fe which can be measured by Si pin.
Here? is pic of my local granite showing Fe peaks
Taray
