Journal of Nuclear Chemistry

Research Article

Determination of Effective Atomic Numbers Using Different Methods for Some Low-Z Materials

Table 2

(a) Effective atomic numbers calculated with the direct and the interpolation methods for PE, PS, and PP with experimental data. (b) Effective atomic numbers calculated with the direct and the interpolation methods for PX, PC, and PA-6 with experimental data.
(a)
Energy (MeV)PE PS PP
a b b
0.013 4.688 4.462 4.5 4.947 4.702 —4.688 4.460 —
0.017 4.027 4.191 4.1 4.359 4.479 —4.027 4.188 —
0.022 3.515 3.813 3.8 3.872 4.163 —3.515 3.810 —
0.026 3.234 3.504 —3.593 3.877 —3.234 3.500 —
0.032 3.017 3.205 3.1 3.371 3.594 —3.017 3.201 —
0.033 2.988 3.160 —3.340 3.551 —2.988 3.155 —
0.044 2.823 2.913 2.9 3.167 3.284 —2.823 2.910 —
0.054 2.762 2.833 —3.102 3.175 —2.762 2.829 —
0.060 2.742 2.806 —3.081 3.138 2.98 2.742 2.803 2.64
0.081 2.703 2.756 —3.040 3.067 —2.704 2.753 —
0.123 2.681 2.727 —3.016 3.025 —2.681 2.723 —
0.279 2.670 2.713 —3.004 3.005 —2.670 2.709 —
0.356 2.669 2.712 —3.002 3.003 —2.669 2.708 —
0.511 2.668 2.711 —3.001 3.002 3.00 2.668 2.707 2.67
0.662 2.667 2.710 —3.001 3.001 3.00 2.667 2.707 2.66
1.115 2.667 2.711 —3.001 3.002 —2.667 2.708 —
1.173 2.667 2.710 —3.001 3.001 3.00 2.667 2.707 2.66
1.274 2.667 2.710 —3.001 3.000 3.00 2.667 2.706 2.66
1.333 2.668 2.710 —3.001 3.001 3.00 2.668 2.706 2.66
aValues have been reported by Parthasaradhi et al. [29]. bValues have been reported by Kucuk et al. [30].
(b)
Energy (MeV)PXPCPA-6
cdaeac
0.0136.210 5.606 ——5.6 —5.789 5.374 5.8 5.707 5.221 —
0.017 5.615 5.453 ——5.4 —5.281 5.226 5.5 5.072 5.035 —
0.022 5.014 5.201 ——5.2 —4.788 4.996 5.3 4.483 4.738 —
0.026 4.612 4.931 —4.822  —4.469 4.757 —4.115 4.442 —
0.032 4.258 4.580 ——4.6 —4.195 4.468 4.8 3.806 4.088 —
0.033 4.206 4.518 —4.399 ——4.156 4.418 —3.762 4.028 —
0.044 3.903 4.088 ————3.926 4.077 4.4 3.509 3.677 —
0.054 3.785 3.906 ———3.53 3.837 3.935 —3.413 3.531 —
0.060 3.745 3.848 —3.823 — 3.808 3.890 —3.381 3.481 —
0.081 3.669 3.736 ———3.43 3.751 3.803 —3.320 3.385 —
0.123 3.627 3.673 ———3.62 3.718 3.755 —3.286 3.330 —
0.279 3.606 3.641 3.6 —— 3.702 3.729 —3.268 3.303 3.1
0.356 3.604 3.640 ———3.71 3.700 3.729 —3.266 3.301 —
0.511 3.602 3.637 ———3.67 3.699 3.726 —3.265 3.299 —
0.662 3.601 3.636 3.4 ——3.52 3.698 3.726 —3.264 3.298 2.9
1.115 3.601 3.637 3.3 —— 3.698 3.727 —3.264 3.299 2.9
1.173 3.601 3.636 ———3.61 3.698 3.726 —3.264 3.298 —
1.274 3.601 3.635 ———3.56 3.698 3.725 —3.264 3.297 —
1.333 3.601 3.635 ———3.57 3.698 3.725 —3.264 3.297 —
aValues have been reported by Parthasaradhi et al. [29]. cValues have been reported by Kumar et al. [31]. dValues have been reported by Vijayakumar et al. [32]. eValues have been reported by El-Kateb and Abdul-Hamid [33].