استخدام فلم الأشعة السينية وعداد كايكر لقياس الكثافة للموادالصلبة

The aim of This research is to find a simple method for measurement the materials density by using X-ray radiation film and Geiger counter as detector for x-ray and gamma –ray radiation because it has a good specification. The different between our results due to actual results for the density of some materials depend on the absorption of impure the materials for radiation and also the error ratio measurements .