ORNL-4191 - the Molten Salt Energy Technologies Web Site

( HEAT
EXCHANGER
.-
0
In
II
1
disintegration rates can be obtained by comparing
the ratio of the areas under the counting peaks
for different isotopes at one position with the
ratio found at other positions. For the measure-
ments made at point A on Fig. 2.6, the'ratio of
Ru to Zr-Nh was 0.66, while at point B the ratio
was 1.20.
Although not clearly understood at this time, it
ORNL-DWG 67-44792
0
I1
1
FREEZE FLANGE 402
I 1
'-. LINES OF EQUAL RADIATION LEVEL
Fig. 2.6. Results of Gamma Scan of he MSRE Heat Exchanger.
x 99'/,
x= 62
is believed that these differences in the ratios
represent a difference in the deposition of the two
isotopes at the two positions. Much additional
work would he necessary to establish the method
for quantitative measurement under a particular
set of conditions, but it might be the only non-
destructive method for making such deposition
measurements.