?
It looks good Taray, one thing to try, repeat the setup but put the sample away from the source, sort of like a mirror that the source and sensor are both looking at the same surface?
Geo
----- Original Message -----
From: taray singh via Groups.Io <sukhjez@...>
To:
[email protected]Sent: Fri, 21 Feb 2020 23:02:22 -0500 (EST)
Subject: [XRF] Mini X-ray xrf
Hi guys
This is??my X-ray setup
My x ray generating tube sits within a cylindrical??X-ray??collimator?
This collimator protrudes into??a cardboard box??containing my X-ray detector??and X-ray signal detecting Inspector Usb Geiger counter.
The exit of the X-ray collimator is closed by a less than 0.5 mm Al sheet?
The back is a leaded glass with lead polymer sleeves ..to prevent backscatter from the rear and of my collimator?
My X-ray generating tube is placed in such a way that the cathode is closest to the exit of X-ray beam?
Applying the anode heel effect.
I chose a low Z element Cr about 4 by 2 cm approx??for xrf and titanium orthopedic implant.
Since my tube is not an x -ray tube ,it will not tolerate continuous firing?
So I did it with intermittent shots each lasting about 1 sec
Probably a 70 kvp will be more damaging than a 30 kvp like in my setup
You notice a polymer covering for almost everything?
This is a probably antimony polymer from some old stripped medical X-ray aprons courtesy of??a hospital where I work.The X-ray glass was also surplus from my hospital .
Should be sufficient to block 30 kvp X-ray?
Using multiple layers of apron material just in case.
Pics are for my setup,transformer and an exact replica of my X-ray collimator??and a??Cr and Ti pic
Apologies for not showing the X-ray generating tube.
Taray
