<s>
A	O
wipe	B-Algorithm
test	I-Algorithm
counter	I-Algorithm
is	O
a	O
device	O
used	O
to	O
measure	O
for	O
possible	O
radioactive	O
contamination	O
in	O
a	O
variety	O
of	O
environments	O
.	O
</s>
<s>
A	O
swab	O
or	O
small	O
absorbent	O
smear	O
can	O
be	O
used	O
to	O
“	O
wipe	O
”	O
an	O
area	O
,	O
the	O
wipe	O
is	O
then	O
placed	O
into	O
a	O
test	O
tube	O
and	O
counted	O
,	O
typically	O
using	O
a	O
gamma	B-Algorithm
counter	I-Algorithm
.	O
</s>
<s>
Testing	O
for	O
leaks	O
in	O
this	O
manner	O
is	O
a	O
method	O
described	O
in	O
the	O
ISO	B-General_Concept
9978	O
standard	O
.	O
</s>
<s>
A	O
gamma	B-Algorithm
counter	I-Algorithm
is	O
a	O
typical	O
choice	O
for	O
measuring	O
wipe	O
samples	O
for	O
radioactivity	O
as	O
it	O
allows	O
multiple	O
tests	O
to	O
be	O
counted	O
in	O
a	O
largely	O
automated	O
way	O
.	O
</s>
<s>
These	O
systems	O
detect	O
radiation	O
using	O
a	O
scintillator	O
and	O
photomultiplier	B-Algorithm
tube	I-Algorithm
and	O
may	O
allow	O
the	O
energy	O
spectrum	O
of	O
a	O
sample	O
to	O
be	O
recorded	O
,	O
which	O
can	O
be	O
used	O
to	O
identify	O
the	O
contaminant	O
.	O
</s>
<s>
In	O
Australia	O
licence	O
conditions	O
may	O
require	O
adherence	O
to	O
Australian	O
standard	O
AS2243.4	O
and	O
ISO	B-General_Concept
9978	O
for	O
wipe	O
testing	O
of	O
sealed	O
sources	O
.	O
</s>
