title: Intensity of transmitted photon spectra as a function of transverse and longitudinal dimensions of soil medium using 137Cs.
abstract: Transmitted photon spectra (pulse-height distribution) of (137)Cs gamma rays are measured through longitudinal and transverse dimensions of the soil medium. The intensity (photon fluence rate) of the multiple-scattered peak, appearing in the lower energy part of the spectrum, has been studied as a function of longitudinal as well as transverse thickness of the soil medium. The intensity of multiple-scatter peak decreases exponentially with the increase in longitudinal thickness of the soil medium, whereas a reverse trend of multiple-scatter peak intensity with transverse thickness occurs as the longitudinal dimension increases. The soil medium as a whole takes part in multiple scattering affecting the intensities of transmitted photons.
authors.affiliation: Physics Department, Punjabi University, Patiala 147002, India.
authors.forename: Gurdeep S
authors.initials: GS
authors.lastname: Sidhu
authors.forename: Tejbir
authors.initials: T
authors.lastname: Singh
authors.forename: Gurmel S
authors.initials: GS
authors.lastname: Mudahar
authors.forename: Parjit S
authors.initials: PS
authors.lastname: Singh
mesh_terms: D002588:Cesium Radioisotopes / Q000032:analysis*; D005720:Gamma Rays; D017785:Photons; D011834:Radiation Monitoring; D012542:Scattering, Radiation; D012990:Soil Pollutants, Radioactive / Q000032:analysis*
chemical_list: D002588:Cesium Radioisotopes; D012990:Soil Pollutants, Radioactive