TY  - BOOK
AU  - Hammam Abdullah Abdurabu Thabit
AU  - Abdallah Abdelsalam , 
AU  - Samir Elkameesy , 
TI  - Assessment of natural radioactivity concentrations in  some environmental samples from Yafea area, Yemen / 
PY  - 2014///
CY  - Cairo : 
PB  - Hammam Abdullah Abdurabu Thabit , 
KW  - Environmental samples
KW  - Natural radioactivity
KW  - Yemen
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics; Issued also as CD
N2  - This study aimed at investigating the radiological hazard of environmental  rock and soil samples used as building materials in Yemen. The activity  concentrations of ²²⁶Ra,²³²Th and ⁴{u⁰⁰B⁰}K in the collected samples were determined  using high-resolution gamma spectrometry. The radium equivalent, external  hazard, internal hazard, representative level, absorbed dose rate and the annual  effective dose were also estimated. The obtained data could be considered  beside its scientific value data baseline for drawing a radiological map of Yafea  town in Yemen. Further investigations of the samples have been performed  using X-ray fluorescence and remarkable concentrations of both Fe, Al and Ti  have been observed
ER  -