
339
15
NDA Field Radioactivity
Detection
The rst steps in the interdiction of a sample of radioactive material take place in the
eld,
f
ar
f
rom
t
he
c
ontrolled
e
nvironment
o
f
a
r
adiochemical
f
orensic
f
acility.The
eld
a
nalyst
w
ill
h
ave
b
ut
l
imited
i
nstrumentation
t
o
he
lp
m
ake
a
m
aterial
i
den-
tication,
d
iscover
t
he
l
evel
o
f
h
azard
a
ssociated
w
ith
i
t,
a
nd
p
ackage
i
t
f
or
s
afe
a
nd
r
eliable
d
elivery
t
o
t
he
l
aboratory
o
r
o
ther
d
isposition
s
ite.
I
nstruments
f
or
t
he
determination of radiation in the eld must be easy to use, rugged, and portable.
T
hese
i
nstruments
h
ave
t
wo
p
rimary
p
urposes:
p
rotection
o
f
p
ersonnel
a
nd
i
nitial
i
dentication and rough ...