Prediction of Materials Density according to Number of Scattered Gamma Photons Using Optimum Artificial Neural Network

Table 1

Number of detected photons from different materials.

Tested materials	Number of detected photons (#)	Density of material (g/cm^3)
Polyethylene	5212	0.91
Calcium	7301	1.54
Magnesium	8125	1.73
Beryllium	9094	1.86
Sulfur	9631	2.06
Glass	11307	2.5
Aluminum	11705	2.7
Titanium	16185	4.54
Zinc	19701	7.13
Iron	20429	7.87