Open AccessParticle size and concentration effects on low energy X-ray attenuation in nanostructure and microstructure materials
Author(s) -
Samira Sarshough,
Kamal Hadad,
Reza Faghihi
Publication year - 2018
Publication title -
nuclear technology and radiation protection
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.31
H-Index - 16
eISSN - 1452-8185
pISSN - 1451-3994
DOI - 10.2298/ntrp1801075s
Subject(s) - attenuation , materials science , monochromatic color , x ray , microstructure , radiation , nanostructure , particle size , particle (ecology) , excitation , optics , composite material , physics , nanotechnology , chemistry , oceanography , quantum mechanics , geology
The effects of microsize and nanosize particles in composite structures as well as the incident radiation energy on X-ray attenuation is the focus of this study. To examine these effects, composite samples with different particle sizes of Al2O3 and with different thicknesses were prepared. Characteristic X-rays are applied as monochromatic X-rays and measurements were performed using an X-ray tube with a secondary excitation source instead of radioisotopes. In order to improve the efficiency and minimize the background effects a special detection system was designed and prepared. The linear attenuation coefficients of these samples are measured for X-ray photo energies of 6.40-28.49 keV. The results show that these low energy X-ray beams are more attenuated by nano-structured material compared to the micro-structured one.