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Development of a Method for Measurement of Photonuclear-Reaction Cross Sections with the Aid of Simulated Quasimonoenergetic-Photon Spectra

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Abstract

A procedure for measuring photonuclear-reaction cross sections by employing the method of quasimonochromatization of the bremsstrahlung photon spectrum is developed. This procedure permits determining reaction cross sections via measuring the reaction yield at three fixed values of the electron energy. The procedure is equivalent to measuring the cross section in question for quasimonochromatic photons. Bremsstrahlung-photon spectra are obtained using state-of-the-art simulation means involving the GEANT4 code as applied to a specific experiment with allowance for its geometry, target thicknesses, electron-beam parameters, etc. The results obtained by simulating quasimonochromatic distributions of bremsstrahlung photons are presented for experiments at the LUE-8-5 linear electron accelerator of Institute for Nuclear Research (Moscow, Russian Academy of Sciences). These results are found to be in good agreement with the experimental energy distribution of the cross section for the reaction 111Cd(γ, γ') in the energy range between 5 and 8 MeV.

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Correspondence to S. V. Zuyev.

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Original Russian Text © S.V. Zuyev, V.G. Nedorezov, E.S. Konobeevski, A.A. Turinge, 2018, published in Yadernaya Fizika, 2018, Vol. 81, No. 4, pp. 409–414.

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Zuyev, S.V., Nedorezov, V.G., Konobeevski, E.S. et al. Development of a Method for Measurement of Photonuclear-Reaction Cross Sections with the Aid of Simulated Quasimonoenergetic-Photon Spectra. Phys. Atom. Nuclei 81, 442–446 (2018). https://doi.org/10.1134/S1063778818040208

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  • DOI: https://doi.org/10.1134/S1063778818040208

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