Radiogenic Lead with Dominant Content of ²⁰⁸Pb: New Coolant and Neutron Moderator for Innovative Nuclear Facilities

Table 3

Main parameters of the calculation model.

Parameter	Value
Pitch of fuel lattice (mm)	13.6
Diameter of fuel meat (mm)	7.7
Thickness of contact layer (mm)	0.2
Thickness of cladding (mm)	0.5
Diameter of fuel rod (mm)	9.1
Fuel	(U, Pu)N; γ = 14.32 g/cm^3
Uranium fraction	Natural uranium; Composition: ^235U—0.007, ^238U—0.993
Plutonium fraction	Reactor-grade plutonium; ^239Pu-60%; ^240Pu—25%; ^241Pu—11%; ^242Pu—4%
Plutonium fraction content (%)	13.84
Core breeding ratio (CBR)	1.038
Contact layer and coolant	Lead; γ = 10.47 g/cm^3
Cladding	Stainless steel EP-823; γ = 8 g/cm^3; Composition: 85% Fe, 12% Cr, 3% Si
Core height (cm)	110