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MCNP model 3D and 2D view of the selected assembly design with 8cm fuel pitch.

MCNP model 3D and 2D view of the selected assembly design with 8cm fuel pitch.

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Figure 2: Typical TRIGA fuel rod with SS-304 caldding. [1]
Figure 3: Conceptual subcritical TRIGA fuel assembly design
Figure 5: MCNP model of RTP fuel infinite lattice array in water and...
Figure 7: 5x5 array without (left) and with graphite rods (middle) and...
+2 Figure 8: MCNP model 3D and 2D view of the selected assembly design...
CONCEPTUAL CORE DESIGN FOR SUBCRITICAL TRIGA FUEL ASSEMBLY
Conference Paper
Full-text available
  • Oct 2018
A subcritical nuclear assembly is a device where the nuclear-fission chain reaction is initiated and maintained using an external neutron source. Since some of the TRIGA reactors currently maintained and operated are reaching its retiring phase, the fresh or irradiated fuel can be utilized as a subcritical nuclear assembly. The TRIGA Fuel Subcritic...
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Context 1
... keff value below 0.8 achieved at fuel pitch distance of 8.0 cm. The optimum design as shown in Figure 8 was selected considering the criticality analysis results where 25 fuel rods loaded into the assembly with 8.0 cm fuel pitch distance and graphite at the outer boundary. The top and bottom grid plat act as a support structure holding the fuel rods and maintaining the fuel pitch distance. ...