12§
have devised a method of running Beta Absorp=tion °
ourves with a simple eset up and alum
inus absorbers,
Other methods previously used for
Beta Absorption Technique place varying
thicknees of aluminum over a sample, the
Beta Emitting samples.
The curves are then plotted as
activity Versus this thickness of aluminun,
This {9 good for visual use,
You can see
the shape of a curve or compare it with
another isotope that you may consider, but
for complex means, samples containing 1so-}
topes are possibly the worsé cace of
fiecion products,
With very many isotopes
it geta rather tomplicated/
Other methods such as feather
plots use always end point functions, range
functions which means that you have to work
in very heavy thicknesses of aluminum and
our samples that we are dealing with sometimes range as low as one disintegration
per minute and if you are trying to be sure
that you have found strontium in a sample
ag counting one disintegration per minute,
it is very difficult to do this by any aba
sorption techniques,