Simulation of Radiation Damage and He Accumulation Induced by ¹⁰B(n, α)⁷Li Reactions in Al-B₄C Neutron Absorbers Used in Spent Fuel Pools

Table 3

Design parameters of the EC45 assembly [38, 39].

Parameter	Value
Lattice geometry
Fuel rod pitch (cm)	1.26
Assembly pitch (cm)	21.504
Active fuel rod length (cm)	365.76
Fuel material type	UO2
Fuel pellet density (%TD)	96.016
Fuel pellet diameter (cm)	0.8191
Enrichment (wt%)	4.4982
Clad material type	ZIRLO
Clad inner diameter (cm)	0.8356
Clad outer diameter (cm)	0.950