ORNL-1771 - Oak Ridge National Laboratory

...
Two configurations, a single duct and a triangular
array of three ducts (5 in. from center to center),
were placed in the LTSF with one end adjacent to
the source plate. A comparison of the thermal-
neutron flux beyond the two configurations is given
in Fig. 12.5, and Figs. 12.6 and 12.7 are thermal-
10-1
-70 -50 -30 -10 (0 30 50 70
y, VERTICAL DISTANCE FROM SOURCE AXIS (cm)
Fig. 12.6. Thermal-Neutron Flux ffleasurements
Beyond One GE-ANP Helical Air Duct - Vertical
Traverses.
PERIOD ENDING SEPTEMBER 70, 7954
neutron traverses parallel to the source plate. An
array of 35 ducts is to be placed in a medium of
steel Raschig rings (35 vol %) and borated water
for a study of the effect of the addition of ducts to
gamma shietding.
51 ...... I . j ........ j ! . I . . i 1
-70 -50 -30 -IO 10 30 50 70
y, VERTICAL DlSTANLt FROM SOCINCL AXIS [cm)
Fig. 12.7. Thermal-Neutron Flux Measurements
Beyond Three GE-ANP Helical Air Ducts - Vertical
Traverses.
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