Research Article
Determination of Effective Atomic Numbers Using Different Methods for Some Low-Z Materials
Table 1
Elemental compositions of the low-
materials.
| | Tissue substitute | Element weight (%) | | H | C | N | O | Na | P | S | Cl | K | Ca |
| Polyethylene (PE)
Polystyrene (PS) | 14.37
11.18 | 85.63
88.82 | —
— | —
— | —
— | —
— | —
— | —
— | —
— | —
— |
| Polypropylene (PP)
Perspex (PX) | 14.37
8.050 | 85.63
59.98 | —
— | —
31.96 | —
— | —
— | —
— | —
— | —
— | —
— |
| Polycarbonate (PC)
nylon 6-6 (PA-6) | 7.060
9.800 | 78.92
63.68 | —
12.38 | 14.02
14.14 | —
— | —
— | —
— | —
— | —
— | —
— |
| Plaster of Paris (POP)
TH/L2 | 2.300
10.00 | —
13.60 | —
2.200 | 55.80
73.50 | —
0.2 | —
0.1 | 18.6
— | —
0.1 | —
0.2 | 23.3 — |
|
|
