Table 2: Specification of core components.

Item Unit Value Note
1. Driver fuel
Core fuel material - MOX Mixed oxide with PuO2-UO2
Core fuel pellet OD (mm) 5.4
Core fuel density (%T.D.) 85
Axial blanket material - depleted U 235U/U = 0.003
Axial blanket pellet OD (mm) 5.4
Axial blanket density (%T.D.) 93
Fuel pin cladding material - SS316
No. of fuel pins per assembly - 169
Core fuel pin OD (mm) 6.5
Core fuel pin cladding thickness (mm) 0.47
Fuel pin pitch (mm) 7.9
Fuel pin pitch/diameter - 1.22
Fuel pin length (mm) 2800 F.P. gas plenum located at upper
Axial neutron shield material - SS316 -
Axial neutron shield length (mm) 645 Volume ratio SS: Na = 73:27
Duct material - SS316
Duct inner-flat-to-flat (mm) 104.6
Duct thickness (mm) 3
Assembly length (mm) 4200
2. Radial blanket assembly
Blanket fuel material - depleted U 235U/U = 0.003
Blanket fuel pellet OD (mm) 10.4
Blanket fuel density (%T.D.) 93
Blanket pin cladding material - SS316
No. of fuel pins per assembly - 61
Blanket fuel pin OD (mm) 11.6
Blanket fuel pin cladding thickness (mm) 0.5
Blanket fuel pin pitch (mm) 13.15
Blanket fuel pin pitch/diameter - 1.135
Blanket fuel pin length (mm) 2800 F.P. gas plenum located at upper
3. Control rod
Guide tube material - SS316 All rod out simulated
Guide tube OD (mm) 10.4
Guide tube ID (mm) 10.4
4. Neutron shield
Material - SS304 Volume ratio SS: Na = 78:22
5. Target assembly
No. of total pins per assembly - 61 Same as radial blanket assembly
No. of tungsten pins per assembly - 61 to 43 Depend on survey case
No. of moderator pins per assembly - 0 to 18 Depend on survey case
Tungsten pellet density - 19.25
Zirconium hydride pellet density - 5.6 H/Zr stoichiometry = 1.7
Pellet stack height (mm) 930 Same as active core height