You
can take the conversion gain up to 2048 channels which will get a bit more
resolution at the expense of a longer count time.
If
you are talking about a peak please put the cursor on it so we can read the
energy and counts. This program really needs to have the x-axis numbers to be
below the spectra as it¡¯s really hard to see the energy which is covered up by
the spectra baseline noise.
Also
post the.mca files along with the photos so some of us can play with the data.
I¡¯m
surprised we don¡¯t see a large Am peak.? How do you do the energy cal?
Using 6 Am241 /ludlum??lead disc??glued to cardboard box
Si pin??near orifice
Due to the shape of detector and fear of samples potentially
damaging Be window,I opted for this way
Anyway it is only a prototype.
Accidentally glued one the Am buttons upside down and it is really
stuck
Will fix it next time..
Samples as follows?
1 Selenium
Was discussed in the old forum
My sample is a centrifuged suspension of selenium sulphide(selsen)
in a??plastic sample container .It has remained
the same since preparation about 2 years ago
It sticks like a coating so without a container,alpha is active.
?
2 X ray apron polymer
Nowadays they are lead free and consist of polymers mixed??with antimony,tungsten or
bismuth etc to make it light weight?
I always thought there was antimony present in my sample from my
previous xrf experiments.It appears to Tin here??
