EPJ Web Conf.
Volume 239, 2020ND 2019: International Conference on Nuclear Data for Science and Technology
|Number of page(s)||4|
|Section||Nuclear Reaction Measurements|
|Published online||30 September 2020|
Isomer ratios for products of photonuclear reactions on Rh
1 Department of Nuclear Physics, Taras Shevchenko National University of Kyiv, Ukraine
2 Research and Development Complex "Accelerator" of National Science Center "Kharkov Institute of Physics and Technology", Kharkiv, Ukraine
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Published online: 30 September 2020
Over the past several years various preequilibrium models for nuclear reaction mechanisms description were developed. Diversified detailed experimental data in the medium excitation energy region for nuclei are needed for reasonable selection among these theoretical models. Lack of experimental data in this energy region does essentially limit the possibilities for analysis and comparison of different preequilibrium theoretical models. For photonuclear reactions this energy range covers 30-100 MeV. Experimental measurements and estimations of isomer ratios for products of photonuclear reactions with multiple particle escape on antimony were performed using bremsstrahlung spectrum as projectile with end-point energies 74,9 and 85,7 MeV. Method of the induced activity measurement was applied. For acquisition of gamma spectra we used HPGe spectrometer with 20% relative efficiency. Linear accelerator of electrons LU-40 was a source of bremsstrahlung. Energy resolution of electron beam was about 1% and a mean electron current varied within (3.8 - 5.3)μA.
© The Authors, published by EDP Sciences, 2020
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