Hi Agoo-
You could press some briquettes of a salt (KBr is fine) and tape it/them to the exit port(s) of your tube.
After a few minutes of beam exposure, you will see a darkened area of the salt which will directly show the beam exposure, rather like film would.
I wouldn't do this for too long, as the salt might eventually corrode the exit windows.
Chuck
Chuck Smithhart, Ph.D.
Associate Professor of Chemistry
Delta State University
Division of Mathematics and Sciences
DSU Box C-4
Cleveland, MS 38733
(662) 846-4477
-----Original Message-----
From: Support and use of X-ray diffraction instrumentation <[log in to unmask]> On Behalf Of Agoo
Sent: Sunday, September 8, 2019 11:40 PM
To: [log in to unmask]
Subject: [EXT]: line focus vs point focus
**External Email**
How to find which window is line focus and which is point focus in the XRD x-ray tubes? Is there any standard method of identification?
Since water in and out is fixed in the tube housing and since there is a guide pin prevents the tube from installing which ever window you want how it is possible to install the same tube from point focus to line focus?
Regards
Agoo Seventapegi, Ph.D.
Engineering Department
University of Zimbabwe
P. O. Box MP 203
Mount Pleasant, Harare
Tel: +263-04-333407
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