Determination of photon attenuation coefficient, porosity and field capacity of soil by gamma-ray transmission for 60, 356 and 662keV gamma rays

Inventories and concentration profiles of 137Cs in undisturbed soils in the northeast of Buenos Aires Province, Argentina

“…Isaac et al, 1997). The soil gamma attenuation coefficients were determined (Demir et al, 2008;Montes et al, 2009) to ensure that auto-absorption effects were similar for all samples. The laboratory background was obtained and corrections in the peaks were performed.…”

Gamma transmission system for detection of scale in oil exploration pipelines

“…The linear attenuation coefficient for materials with known chemical composition may be found in the literature [8].…”

“…Gamma-ray transmission has found increasing applications in non-destructive measurements [8]. The technique of γ radiation transmission compares the initial intensity I 0 , with the transmitted intensity I of the beam, resulting from the attenuation in the sample [9].…”

“…Photon attenuation coefficients are required in a variety of nuclear science, technology and medical applications [8].…”

Downward migration of radiocaesium in organic soils across a transect in Scotland

“…The vertical distribution of 137 Cs in soil affects the exposure of man and animals to ionising radiation. Gamma rays from 137 Cs in soil travel in air and the intensity of the radiation from the decay of 137 Cs experienced by man or animals on the land is dependent on the depth distribution and activity of the 137 Cs in the soil profile and the attenuation factors related to the elemental composition, bulk density, structure and moisture content of the soil (Demir et al, 2008). The amount and distribution of 137 Cs in the plant rooting zone also influences the transfer of radioactivity into the food chain, and the transport of radioactivity in the terrestrial environment by erosion and runoff (Smith and Beresford, 2005).…”