Neutronic Performance of the VVER-1000 Reactor Using Thorium Fuel with ENDF Library

Table 2

FA types, enrichment, and number loaded in the core for the first operational cycle [12].

FA type	Average enrichment %	No. of UO2 rods/enrichment %	No. of burnable absorber rods (BA)
16	1.6	311/1.6	—
24	2.4	311/2.4	—
36	3.62	245/3. 7; 66/3.3	—
20 B 24	2.4	311/2.4	18
36 B 24	2.4	311/2.4	18
36 B 36	3.62	245/3. 7; 66/3.3	18