TY  - BOOK
AU  - Mohammed Gaber Abdelkarim Mohammed
AU  - Amany Taha Sroor , 
AU  - Saher Mohammed Darwish , 
TI  - Environmental nuclear studies of natural radioactivity and exhalation rate of radon at Shuk-Elthoban area, Helwan, Egypt / 
PY  - 2013///
CY  - Cairo : 
PB  - Mohammed Gaber Abdelkarim Mohammed , 
KW  - Exhalation rate of radon at Shuk-Elthoban
KW  - Natural radioactivity
KW  - Rate of radon
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics; Issued also as CD
N2  - The main objective of this thesis is to do environmental nuclear studies of natural radioactivity and exhalation rate of radon at Shuk-Elthoban area in Helwan, Egypt. The present investigation is focused on the study of marble and granite commercially used in many industries using HPGe gamma-ray spectrometer. It has the highest concentration of marble and granite factories in Helwan reaching around 400 factories, constituting 60% to 70% of marble and granite factories in Egypt
ER  -