MASS ATTENUATION COEFFICIENT AND ATOMIC CROSS SECTION OF GeO2 IN THE ENERGY RANGE 122-1330KeV
Keywords:attenuation coefficient, total atomic cross sections
In the present investigation, we have determined here the mass attenuation coefficients (μm) of germanium oxide for energies of 122 -1330 keV. Photon energies are measured using the different radioactive sources Co57, Ba133, Cs137, Na22, Mn54 and Co60. In the current investigation to detect gamma rays NaI(Tl) scintillation detection system were used. The investigated attenuation coefficient values were then used to determine the important parameters i.e. total atomic cross sections (st) for germanium oxide. Graphically it is observed that the variations of μm and st with energy The values of μm, st, are higher at lower energies and they decrease sharply as energy increases. The XCOM data is used to calculate Theoretical values. We were observed that the Theoretical and experimental values are found to be in a good agreement (error < 3-4%).
2. Creagh, D.C., 1987, The resolution of discrepancies in tables of photon attenuation coefficients Nucl Instrum Methods A255, 1- 16.
3. Danial Salehi, Dariush Sardari and M.S. Jozani, 2015 Investigation of some radiation shieldingparameters in soft tissue Journal of Radiation Research and Applied Sciences 8:439-445.
4. Demir D., Tursucu A. and Oznuluer T., 2012 Studies on mass attenuation coefficient, effective atomic number and electron density of some vitamins Radit. Environ Biophys 51:469-475.
5. El-Kateb A. H., Abdul-hamid A. S., 1991 Photon attenuation coefficients study of some materials containing hydrogen, carbon and oxygen Appl.Radiat.Isot.42:303-307.
6. Gowda S.Krishnaveni S. and Gowda R. 2005. Studies on effective atomic numbers and electron densities in amino acids and sugars in the energy range 30-1333keV Nucl. Instrum. MethodsPhys.Res.B 239, 361-369.
7. Gerward,L,Guilbert,N,JenserK.B.Leving,H.,2004.WinXCOM-a program for calculating x-ray attenuationcoefficient.Radiat.phys.Chem.71,653-654.
8. Hall E J, 1978 Radiation and life Pregamon Press, New York p.55.
9. Hine, G. J., 1952. The effective atomic number of materials for various gamma ray processes. Phys. Rev. 85, 725-728.
10. Hubbell J H, 1999 Review of photon interaction cross section data in the medical and biological context Phys. Med. Biol. 44 R1-22.
11. Hubbell, J. H. and Seltzer SM., 1995 NIST (IR) Report No. 5632.
12. Jackson, D.F., Hawkes, D.J. 1981, X-ray attenuation coefficients of elements and mixtures Phys. Rep.70, 169-233.
13. Manchaca S. R., Hanagodimath S. M., 2007 Studies on effective atomic numbers and electron densities of essential amino acids in the energy range1keV-100 GeV.Nucl.Instrum. Methods Phys.Res.B,258, 321-328.
14. Manohara S. R., Hanagodimath S. M. and L. Gerward, 2008 Studies on effective atomic number, electron density and kerma for some fatty acids and carbohydrates. Phys.Med.Biol.53, N377-N386.
15. Manjunathaguru V. and Umesh T. K., 2006 Effective atomic numbers and electron densities of some biologically important compounds containing H,C,N and O in the energy range 145-1330 keV J. Phys. B: At.Mol.Opt. Phys.39, 3969-3981.
16. Midgley S. M., 2004. A parameterization scheme for the x-ray linear attenuation coefficient and energy absorption coefficient. Phys. Med. Biol.49, 307-325.
17. Midgley S. M., 2005. Materials analysis using x-ray linear attenuation coefficient measurements at four photon energies Phys. Med. Biol.50, 4139-4157.
18. Murat Kurudirek, 2013. Water equivalence study of some phantoms based on effective photon energy, effective atomic numbers and electron densities for clinical MV X-ray and Co-60 ?-ray beams. Nuclear Instruments and Methods in Physics Research A 701, 268-272.
19. Murat Kurudirek, 2014a. Effective atomic numbers, water and tissue equivalence properties of human tissues, tissue equivalents and dosimetric materials for total electron interaction in the energy region 10keV-1GeV. Applied radiation and Isotopes 94, 1-7.
20. Murat Kurudirek, 2014b. Effective atomic numbers and electron densities of some human tissues and dosimetric materials for