Abstract
Experiments on the search for the effect of resonant screening on the Mössbauer absorption of 119mSn γ rays of energy 23.8 keV emitted by a standard Mössbauer Ca119mSnO3 γ source in the resonant SnO2 absorber of natural isotopic composition are described. Intensities of tin γ rays and X-rays that passed through the absorber were measured with and without a resonant cylindrical screen (which was a black absorber for the 23.8-keV Mössbauer γ line) around the absorber and their ratios were calculated for each radiation separately. No difference beyond the experimental error was found between these ratios measured with the γ source both at rest and when oscillating with a frequency and amplitude enough to completely break the conditions for Mössbauer resonant absorption of 23.8-keV γ rays. The upper limit for the relative decrease, due to the influence of the resonant screen, in the intensities of these γ rays after their passing through the resonant absorber was 0.00030.
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Original Russian Text © V.G. Alpatov, Yu.D. Bayukov, A.V. Davydov, Yu.N. Isaev, G.R. Kartashov, M.M. Korotkov, V.V. Migachev, I.N. Rozantsev, M.G. Shchepkin, 2008, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2008, Vol. 72, No. 6, pp. 816–819.
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Alpatov, V.G., Bayukov, Y.D., Davydov, A.V. et al. Experiments on the search for the effect of resonant screening on the probability of Mössbauer absorption of 119mSn gamma rays. Bull. Russ. Acad. Sci. Phys. 72, 769–772 (2008). https://doi.org/10.3103/S1062873808060129
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DOI: https://doi.org/10.3103/S1062873808060129