قياس و حساب معامل التوهين الخطي و الكتلي للأشعة السينية و جسيمات بيتا باستخدام ألواح إسمنتية

الملخص EN

The attenuation measurements of X-ray for the intensity ranges of (47-730) c / sec and Beta-ray for the cement materials were done using X-ray unit and gieger counter.

The linear attenuation coefficients (μl) were concluded for the voltage range mentioned above through linear equations of the yield of graphic representation operation between the logarithmic absorption and the sample thickness x (cm).

The mass attenuation coefficient (μm) can also be concluded through the graphic relation between the logarithmic absorption and the equivalence thickness of the sample Xm (gm / cm2) such that the slope of the graphic relation represent the attenuation coefficient either linear or mass.

The linear direct relation between the logarithmic absorption of X-ray and ß-ray with the thickness and equivalent thickness of the sample were concluded, the inverse relation between the linear and mass attenuation coefficient with X-ray voltage were also concluded of the samples.

The concluded result indicated that the efficiency of prepared material to absorb X-ray and ß-ray and to attenuate them.

This efficiency change relativity according to the adding ratio of the rice shell and cartoon material to the cment.

This indicate a signifisant positive result for this adders on the characteristic radiation attenuation of the host polymer poly olle and poly vinyl asstate.