Nuclear Resonance Scattering of Gamma Rays: Mössbauer effect and its Applications

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Addis Ababa University


The aim of this paper is briefly to discuss the innovation which nuclear recoilless emission and absorption of gamma ray (Mössbauer effect) entails over pervious fluorescence techniques, with enough theoretical discussion to understand how and when the Mössbauer effect occurs and with the description of small number applications to gain an appreciation of the importance of the Mössbauer effect. This effect, which is also called the nuclear resonance fluorescence of gamma rays or nuclear recoilless emission and absorption of gamma rays or zero phonon emission and absorption of gamma rays, is nuclear process permitting the resonance absorption of gamma rays. It is made possible by fixing atomic nuclei in the lattice of solids so that energy is not lost in the recoil during the emission and absorption radiation. The process, discovered by a Germen-born physicist, Rudolf L. Mössbauer in 1957, constitutes a useful tool for studying diverse scientific phenomena. Fields in which Mössbauer spectroscopy has been applied include Nuclear physics, general physics, solid-state physics, surface physics, astronomy, metallurgy, chemistry, biochemistry, geology, and medicine



Nuclear Resonance Scattering