MCNP-X Monte Carlo Code Application for Mass Attenuation Coefficients of Concrete at Different Energies by Modeling 3 × 3 Inch NaI(Tl) Detector and Comparison with XCOM and Monte Carlo Data

Table 2

Concrete sample parameters (density = 2.3 g⋅cm⁻³).

Element	Mass fraction (%)
H	1
C	0.1
O	52.9107
Na	1.6
Mg	0.2
Al	3.3872
Si	33.7021
K	1.3
Ca	4.4
Fe	1.4