Methods and Model Development for Coupled RELAP5/PARCS Analysis of the Atucha-II Nuclear Power Plant

Table 8

CNA-I idealized core—hafnium rods.

Code	MCNP5	PUMA	PARCS
Unrodded	1.00646	1.00841	1.00605
Rodded	0.99880	1.00085	0.99842
Δρ (mk)	−7.61	−7.50	−7.58
Diff (pcm)	—	−11	−3
Power RMS	—	0.43	1.25