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  • Title: Intensity of transmitted photon spectra as a function of transverse and longitudinal dimensions of soil medium using 137Cs.
    Author: Sidhu GS, Singh T, Mudahar GS, Singh PS.
    Journal: Radiat Prot Dosimetry; 2006; 121(3):317-20. PubMed ID: 16614083.
    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.
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