<s>
Radiometric	B-General_Concept
calibration	I-General_Concept
is	O
a	O
general	O
term	O
used	O
in	O
science	O
and	O
technology	O
for	O
any	O
set	O
of	O
calibration	O
techniques	O
in	O
support	O
of	O
the	O
measurement	O
of	O
electromagnetic	O
radiation	O
and	O
atomic	O
particle	O
radiation	O
.	O
</s>
<s>
However	O
,	O
for	O
gamma	O
ray	O
and	O
X-ray	B-Library
dose	O
measurements	O
a	O
unit	O
such	O
as	O
the	O
gray	O
or	O
sievert	O
is	O
normally	O
used	O
.	O
</s>
