Search

Your search keyword '"Svirikhin, A.I."' showing total 2 results
Start Over Author "Svirikhin, A.I." Topic nuclear fission
2 results on '"Svirikhin, A.I."'

1. Spontaneous-fission decay properties and production cross-sections for the neutron-deficient nobelium isotopes formed in the44, 48Ca +204, 206, 208Pb reactions.

Author

Belozerov, A.V., Chelnokov, M.L., Chepigin, V.I., Drobina, T.P., Gorshkov, V.A., Kabachenko, A.P., Malyshev, O.N., Merkin, I.M., Oganessian, Yu.Ts., Popeko, A.G., Sagaidak, R.N., Svirikhin, A.I., Yeremin, A.V., Berek, G., Brida, I., and Šáro, Š.

Subjects
SPONTANEOUS fission, NUCLEAR fission, DECAY schemes (Radioactivity), RADIOISOTOPE decay, NEUTRONS, NUCLEAR reactions, NUCLEAR physics
Abstract

Heavy-ion fusion reactions48Ca +204Pb and44Ca +208Pb leading to the same compound nucleus252No* were run in attempts to produce new neutron-deficient spontaneous-fission isotopes of249,250No using the electrostatic separator VASSILISSA. Production cross-sections for the spontaneous-fission activities with the half-lives 5.6 and 54 μs observed in these reactions are compared with the measured ones for the well-known isotopes of251 - 255No formed in the heavy-ion fusion reactions48Ca +206Pb and48Ca +208Pb. The obtained excitation functions for the reaction products formed after the evaporation of 1-4 neutrons from the corresponding compound No nuclei have been compared with similar data obtained earlier and results of statistical model calculations. [ABSTRACT FROM AUTHOR]

Published
2003
Full Text
View/download PDF

2. Neutron detector at the focal plane of the set up VASSILISSA

Author

Yeremin, A.V., Belozerov, A.V., Chelnokov, M.L., Chepigin, V.I., Gorshkov, V.A., Kabachenko, A.P., Malyshev, O.N., Popeko, A.G., Sagaidak, R.N., Shutov, A.V., Sokol, E.A., and Svirikhin, A.I.

Subjects
*ENGINEERING instruments, *NUCLEAR fission, *PARTICLES (Nuclear physics), *DETECTORS
Abstract

Abstract: For experiments aimed at the study of spontaneous fission of transfermium nuclei improvements in the focal plane detector system of recoil separator VASSILISSA have been made. The neutron detector consisting of 72 3He filled counters has been mounted around the focal plane detector chamber. In the first experiment the multiplicity of prompt neutrons emitted in spontaneous fission of 252No was measured. [Copyright &y& Elsevier]

Published
2005
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results