Ny
=
net counts of isotope
No
=
net counts of tracer isotope
P
=
Ay
=
activity of isotope per aliquot
Ay
=
activity per sample
V4
=
total sample volume
Vo
=
aliquot size used for the analyses
gmount of tracer isotope added, dpm
Gross Alpha and Beta (large area AC-23 probes and smail area SAC-4)
8) 5
Sop Ci funit
——eeeeo
U
Result:
Error Term:
+ 9
C
+
BeT
C
-—-
BeT
$$
(4-10)
1
(4-11)
rr
E
« 2.22
Result:
E
+ 2
Error Term:
+¢
2.22
=
(4-9)
{4-12}
pCi/swipe
Cc
(4-13)
7 +B
Radioactive Standard Sources. Radioactive standard sources were used to calibrate instrumentation
on a weekly basis.
counters.
An electroplated 90sr-90y standard was used for the calibration of beta
An electroplated 239py standard was used for calibration of alpha counters and the alpha
spectrometer. A mixed standard containing 238py, 239pu, 237Np was uSed for energy calibration of
the alpha spectrometer.
Parameters describing these sources are listed in Table 4-4,
Radioactive Standard Solutions. The radiochemical procedures utilized calibrated solution standards
as internal tracers to quantify the radionuclides of interest.
Other standard radionuclide solutions were used to make up spike samples for the quality assurance
program, as well as for calibration of the gamma and liquid scintillation counting systems.
Table 4-4 for specific parameters.)
128
(See