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ANP PROJECT QUARTERLY PROGRESS REPOHT
- c
VI
Y
w
3
120
110
100
90
80
70
4 60
7
n
0
E 50
40
30
20
io
0
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1
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1
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0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34
ROD POSITION (in.)
Fig. 1.8. Calibration Curve of ARE Regulating Rod (weak).
but it is still regarded as adequate.
A comparison was made of the two
fuels used in these experiments by
substituting tubes containing fuel of
the first loading (0.163 gof UZJ5/cm3)
for tubes containing fuel of the second
loading (0.214 g of U235/~m3) at
various points in the reactor core
when it was otherwise loaded with the
second fuel mixture. The losses in
56
reactivity incurred by this sub-
stitution are shown in Table 5.1. For
a similar experiment, an Inconel tube
was loaded with the second mixture and
substituted for an identically loaded
stainless steel tube. The losses
caused by the Inconel are also shown
in Table 5.1. This comparison is
important since the ARE fuel tubes are
fabricated of Inconel.