Benchmark Analysis on Loss-of-Flow-without-Scram Test of FFTF Using Refined SAC-3D Models

Table 2

Cell calculation treatment of FFTF LOFWOS test #13.

Material NO.	XS name	Assembly type	Geometry treatment	XS treatment
1	DF3.1	Driver fuel	Heterogeneous	Critical
2	DF4.1	Driver fuel	Heterogeneous	Critical
3	DF3.2	Driver fuel	Heterogeneous	Critical
4	DF4.2	Driver fuel	Heterogeneous	Critical
5	Lower insulator	Driver fuel	Homogeneous	Subcritical
6	Upper insulator	Driver fuel	Homogeneous	Subcritical
7	SR/CR Ab	Safety/Control rod	Heterogeneous	Subcritical
8	Sodium CH (SR/CR)	Safety/Control rod	Homogeneous	Subcritical
9	Below Ab	Safety/Control rod	Homogeneous	Subcritical
10	Ref 7/7.2	Reflector	Homogeneous	Subcritical
11	Ref 9	Reflector	Homogeneous	Subcritical
12	Sodium CH (GEM)	GEM	Homogeneous	Subcritical
13	GAS	GEM	Homogeneous	Subcritical