Transmutation Strategy Using Thorium-Reprocessed Fuel ADS for Future Reactors in Vietnam

Table 2

Performance characteristics of the ADS.

Core diameter (cm)	280
Core length (cm)	300
Fuel pin radius (cm)	0.315
Pin pitch (cm)	0.89
Cladding thickness (cm)	0.031
Thorium assemblies/reprocessed fuel assemblies	84/96
Thorium weight/reprocessed fuel weight	2.45/1
LBE target radius (cm)	15.0
Accelerator current (mA)	13–30
Spallation yield (n/s)	30
Power output (MWth)	840
Cycle length (days)	430
Radial power peaking factor at BOC	2.50
Axial power peaking factor at BOC	1.21
Radial power peaking factor at EOC	2.09
Axial power peaking factor at EOC	1.20
Void coefficient at BOC (×10^−2 Δk/k)	−7.53
Burnup (GWd/MT)	40
𝑘eff
BOC	0.9591±0.0012
EOC	0.8983±0.0012
Burnup reactivity swing	0.0634 Δ𝑘