Bulg. J. Phys. vol.34 no.s1 (2007), pp. 127-152



Transmutation Studies of Radioactive Nuclides

J. Adam1,3, K. Katovsky2, M. Majerle3, A. Balabekyan4, M.I. Krivopustov1, A.A. Solnyshkin1, V.I. Stegailov1, S.G. Stetsenko1, V.M. Tsoupko-Sitnikov1, W. Westmeier5
1JINR -- Joint Institute for Nuclear Research, Joliot-Curie 2, 141 980 Dubna, Moscow Region, Russia
2CTU - Czech Technical University in Prague, Department of Nuclear Reactors, V Holesovickach 2, 180 00 Prague, Czech Republic
3CAS - Czech Academy of Science, Nuclear Physics Institute, Husinec-Rez, 250 68 Rez near Prague, Czech Republic
4YSU - Yerevan State University, Alex Manoogian 1, Yerevan, Armenia
5PUM - Philipps-Universität in Marburg, Fachbereich Chemie, Biegenstrasse 10, 35037 Marburg, Germany
Abstract. The Target-blanket facility "Energy+Transmutation" was irradiated by a proton beam extracted from the "Nuclotron" Accelerator in the Laboratory of High Energies of Joint Institute for Nuclear Research in Dubna, Russia. Neutrons generated by the spallation reactions of 0.7, 1.0, 1.5, and 2 GeV protons on the lead target and interact with the sub-critical uranium blanket. In the neutron field outside the blanket, radioactive neptunium, plutonium, and americium samples were irradiated and transmutation reaction yields (residual nuclei production yields) were determined using methods of γ-spectrometry. The results of transmutation studies of 237Np, 238Pu, 239Pu, and 241Am are presented.

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