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Effective atomic number; electron density; kerma; oxides of lanthanides.

An attempt has been made to estimate the effective atomic number, electron density (0.001 to 10⁵ MeV) and kerma (0.001 to 20 MeV) of gamma radiation for a wide range of oxides of lanthanides using mass attenuation coefficient from WinXCom and mass energy absorption coefficient from Hubbell and Seltzer. The values of these parameters have been found to change with energy for different oxides of lanthanides. The lanthanide oxides find remarkable applications in the field of medicine, biology, nuclear engineering and space technology. Nano-oxides of lanthanide find applications in display and lighting industry.

R S Niranjan^{1 2} B Rudraswamy¹ N Dhananjaya^{1 3}

1. Department of Physics, Bangalore University, Bangalore 560 056, India
2. Department of Physics, Dravidian University, Kuppam 517 425, India
3. Department of Physics, B.M.S. Institute of Technology, Bangalore 560 064, India

Manuscript received

26 April 2010

Manuscript revised

26 September 2011

Accepted

21 October 2010