Variations in radioactivity of phosphate rocks from different sites in Central Eastern Desert of Upper Egypt

El-Arabi A M，

Yousef A M M

Nuclear Science and Techniques

Vol.13, No.4

pp.193-201

Published in print 01 Nov 2002

CLC：P597+.1, P598

40400

Natural radionuclides in the phosphate rock samples collected from Wadi Batur, Wadi Hegaza and Gabal Abu Had at Eastern Desert were determined using a high resolution γ-ray spectrometer. The experimental results concerning ²²⁶Ra, ²³²Th and their daughters are presented. Analyses of the measured spectra show that ²²⁶Ra is distinguished with remarkable activities with average values ranging from 22.4 to 558 Bq/kg, while ²³²Th activity concentration is in the range of 9.7 to 92.8 Bq/kg. The results of the analyses were found to be in a good agreement with the data obtained by others.

Phosphate rock226Ra232Th

References

Saad El Din I M.

Egypt J Geol. 1991, 35(1-2): 325

Hussein H A, El Hazek N T, Guirguis L A et al.

Recovery of uranium from Egyptian phosphate ores

. Academy of Scientific Research and Technology. 1989, 88

Baidu Scholar

Google Scholar

Abdel-Rahaman M.

Ph D Thesis, Technischen University, Berlin, 1992

Roessler C E.

The environ behavior of radium. Technical Report Series No.310

, IAEA Vienna. 1990, 2: 269

Baidu Scholar

Google Scholar

Martinez-Aguirre A, Garcia-Leon M, J Environ Radioact, 1997, 34: 45

Martinez-Aguirre A, Garcia-Leon M, Ivanovich M.

J Environ Radioact, 1994, 22: 155

Fourati A, Faludi Gy. J Environ Nucl Chem, 1988, 125(2): 287

Donona A.

Geophysical-gechemical exploration center archive, Tirana. 1988

Alberto M, Valerio P, Giuseppe D.

Health Phys, 1993, 65: 298

Hendriks P, Limburg J, De Meijer R, J Environ Radioact, 2001. 53: 365

Ahmed A. Hasan M, Salah A et al. J KAU: Earth Sci, 1988, 1: 181

Scholten L C, Timmermans C W M.

Fert Res, 1996, 43(1-3): 103

El-Arabi A M. Ph D Thesis, South Valley University, Qena, Egypt, 1998

Poole A J, Allington D J, Baxter A J et al. Sci Total Environ, 1995, 173/174: 137

UNSCEAR. Sources and effects of ionizing radiation sources and biological effects, New York: United Nations Publication, 1993

Ahmed N K, Abbady A, El-Kamel A H et al. Indian J Pure Appl Phys, 2001, 39: 553

El-Arabi A M, Ahmed N K, El-Kamel A H.

Arab J Nucl Sci Appl, 2001, 34: 245