TY  - BOOK
AU  - Nada Loutfy Abdelreheam Ali Moussa
AU  - Lotfi Zaki Ismail , 
AU  - Maged Ali Fahmy Mahmoud , 
TI  - Radon - 222 study in ceramics and indoor air / 
PY  - 2011///
CY  - Cairo : 
PB  - Nada Loutfy Abdelreheam Ali Moussa , 
KW  - Exhalation rate
KW  - Radon - 222
KW  - Tracks density
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics; Issued also as CD
N2  - A total 50 samples of 13 different ceramic tiles companies collected from the Egyptian market for the measurements of radon exhalation rate . Three homes include twenty rooms were selected . The period of the survey was in range 2- 3 months for homes for each season while it was about 15 days for ceramic tiles
UR  - http://172.23.153.220/th.pdf
ER  -