Computational Model for the Neutronic Simulation of Pebble Bed Reactor’s Core Using MCNPX

Table 11

values for different heights using BCC and FCC pebbles configurations.

BCC			FCC
Height		Std. dev.	Height		Std. dev.
96.2822	0.89089	0.00090	86.64810	0.84136	0.00088
103.1595	0.92115	0.00091	95.31291	0.88329	0.00089
110.0368	0.94597	0.00087	103.97772	0.91968	0.00087
116.9141	0.96954	0.00089	112.64253	0.95301	0.00087
123.7914	0.99234	0.00091	121.30734	0.98135	0.00089
130.6687	1.01476	0.00091	129.97215	1.00689	0.00089
137.5460	1.03210	0.00088	138.63696	1.03129	0.00087
144.4233	1.04923	0.00091	147.30177	1.05146	0.00088
151.3006	1.06466	0.00091	155.96658	1.07036	0.00090
158.1779	1.08043	0.00088	164.63169	1.08672	0.00088
165.0552	1.09213	0.00090	—	—	—