Gamma ray attenuation measurements

Determination of gamma ray attenuation coefficients of Al-4% Cu/B4C metal matrix composites at 662, 1173 and 1332 keV

“…On the other hand, in the experimental set-up, it is important to take into account multiple compton scattering effects. It has been studied in several works (Kane et al 1977;Midgley 2006;Singh et al 2006).…”

Measurement of X-ray mass attenuation coefficient of nickel around the K-edge using synchrotron radiation based X-ray absorption study

“…Using radioactive sources the oscillatory structures near the absorption edge are currently ignored for various applications (Kouris and Spyrou, 1978). Experimental capabilities, including synchrotron light source and new detectors with better resolution and efficiencies provide more accurate measured value of "m/ρ" to test and understand the theoretical advances.…”

“…Accurate values of photon mass attenuation coefficients are required to provide essential data in diverse fields such as nuclear diagnostics (computerised tomography), nuclear medicine, radiation protection, radiation dosimetry, gamma-ray fluorescence studies, shielding, security screening and research and development etc. (Hounsfield , 1973;Brooks and Dichiro, 1976;Parker, 1980;Phelps et al, 1975;Jackson et al, 1979;Kouris and Spyrou, 1978).…”

“…However the data's on X-ray attenuation measurements using radioactive source in elements near the absorption edge seems to be very limited and in many cases it was the extrapolation method which was used to measure attenuation values near the edge Sivasankar Rao et al, 1977;Chandra lingam et al, 1983;Krishna Rao et al, 1984;Deutsch and Hart, 1986;Kefi et al, 1987;Kerur et al, 1993).…”

“…Hence, in view of the above applications variety of experimental works have been performed using radioactive source to determine the mass attenuation values on the various types of materials such as elements and compounds (Hopkins, 1959; Contents lists available at ScienceDirect journal homepage: www.elsevier.com/locate/radphyschem Parthasaradhi and Hasen, 1974;Kane et al, 1977;Gerward, 1982Gerward, , 1983Gowda and Powers, 1985;Rettschlag et al, 2007;Umesh et al, 1981Umesh et al, , 1982Sarma et al, 1982;Nageswara Rao et al, 1984;Turgut et al, 2004Turgut et al, , 2007Icelli and Erzeneoglu, 2004;Sharanabasappa et al, 2009), tissue equivalent compounds (Parthasaradhi et al, 1992), alloys (El-Kateb et al, 2000), building materials (Alam et al, 2001;Akkurt et al, 2010) etc., at different photon energies.…”