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Journal Articles

Estimation of synthesizing new superheavy elements using dynamical model

Aritomo, Yoshihiro*; Amano, Shota*; Okubayashi, Mizuki*; Yanagi, Baku*; Nishio, Katsuhisa; Ota, Masahisa*

Physics of Atomic Nuclei, 83(4), p.545 - 549, 2020/07

https://doi.org/10.1134/S1063778820040043
 Times Cited Count：0 Percentile：0.02(Physics, Nuclear)

Journal Articles

Shell structure of even-even nickel isotopes containing twenty to forty neutrons

Bespalova, O. V.*; Boboshin, I. N.*; Varlamov, V. V.*; Ermakova, T. A.*; Ishkhanov, B. S.*; Klimochkina, A. A.*; Komarov, S. Yu.*; Koura, Hiroyuki; Romanovsky, E. A.*; Spasskaya, T. I.*

Physics of Atomic Nuclei, 74(11), p.1521 - 1536, 2011/11

https://doi.org/10.1134/S1063778811110056
 Times Cited Count：8 Percentile：42.07(Physics, Nuclear)

Shell parameters of even-even nickel isotopes involving twenty to forty neutrons are analyzed, and the results of this analysis are presented. A detailed comparison of the results obtained by calculating, on the basis of the mean-field model with the Koura-Yamada potential and the dispersive optical potential, single-particle energies of proton and neutron subshells with experimental data on the isotopes $$^{56,58,60,62,64,68}$$Ni and with evaluated data on the neutron-deficient isotopes $$^{48,50,52,54}$$Ni is performed. The Koura-Yamada potential predicts correctly special features in dependence of single-particle energy and are useful in evaluating sub-shell energies on unstable nuclei.

Journal Articles

Measurement and simulation of the cross sections for nuclide production in $$^{56}$$Fe and $$^{rm nat}$$Cr targets irradiated with 0.04- to 2.6-GeV protons

Titarenko, Yu. E.*; Batyaev, V. F.*; Titarenko, A. Yu.*; Butko, M. A.*; Pavlov, K. V.*; Florya, S. N.*; Tikhonov, R. S.*; Zhivun, V. M.*; Ignatyuk, A. V.*; Mashnik, S. G.*; et al.

Physics of Atomic Nuclei, 74(4), p.523 - 536, 2011/04

https://doi.org/10.1134/S1063778811040168
 Times Cited Count：15 Percentile：66.93(Physics, Nuclear)

The cross sections for nuclide production in thin $$^{56}$$Fe and $$^{rm nat}$$Cr targets irradiated by 0.04 to 2.6 GeV protons are measured by direct $$gamma$$ spectrometry using two $$gamma$$ spectrometers with the resolutions of 1.8 and 1.7 keV for the $$^{60}$$Co 1332 keV $$gamma$$ line. As a result, 649 yields of radioactive residual product nuclei have been obtained. The $$^{27}$$Al($$p$$, $$x$$)$$^{22}$$Na reaction has been used as a monitor reaction. The experimental data are compared with the MCNPX (BERTINI, ISABEL), CEM03.02, INCL4.2, INCL4.5, PHITS, and CASCADE07 calculations.

Journal Articles

Measurement and simulation of the cross sections for nuclide production in $$^{93}$$Nb and $$^{rm nat}$$Ni targets irradiated with 0.04- to 2.6-GeV protons

Titarenko, Yu. E.*; Batyaev, V. F.*; Titarenko, A. Yu.*; Butko, M. A.*; Pavlov, K. V.*; Florya, S. N.*; Tikhonov, R. S.*; Zhivun, V. M.*; Ignatyuk, A. V.*; Mashnik, S. G.*; et al.

Physics of Atomic Nuclei, 74(4), p.537 - 550, 2011/04

https://doi.org/10.1134/S106377881104017X
 Times Cited Count：22 Percentile：77.11(Physics, Nuclear)

The cross sections for nuclide production in thin $$^{93}$$Nb and $$^{rm nat}$$Ni targets irradiated by 0.04 to 2.6 GeV protons are measured by direct $$gamma$$ spectrometry using two $$gamma$$ spectrometers with the resolutions of 1.8 and 1.7 keV for the $$^{60}$$Co 1332-keV $$gamma$$ line. As a result, 1112 yields of radioactive residual product nuclei have been obtained. The $$^{27}$$Al($$p$$, $$x$$)$$^{22}$$Na reaction has been used as a monitor reaction. The experimental data are compared with the MCNPX (BERTINI, ISABEL), CEM03.02, INCL4.2, INCL4.5, PHITS, and CASCADE07 calculations.

Journal Articles

Measurement and simulation of the cross sections for nuclide production in $$^{rm nat}$$W and $$^{181}$$Ta targets irradiated with 0.04- to 2.6-GeV protons

Titarenko, Yu. E.*; Batyaev, V. F.*; Titarenko, A. Yu.*; Butko, M. A.*; Pavlov, K. V.*; Florya, S. N.*; Tikhonov, R. S.*; Zhivun, V. M.*; Ignatyuk, A. V.*; Mashnik, S. G.*; et al.

Physics of Atomic Nuclei, 74(4), p.551 - 572, 2011/04

https://doi.org/10.1134/S1063778811040181
 Times Cited Count：33 Percentile：85.45(Physics, Nuclear)

The cross sections for nuclide production in thin $$^{rm nat}$$W and $$^{181}$$Ta targets irradiated by 0.04 to 2.6GeV protons are measured by direct $$gamma$$ spectrometry using two $$gamma$$ spectrometers with the resolutions of 1.8 and 1.7 keV for the $$^{60}$$Co 1332-keV $$gamma$$ line. As a result, 1895 yields of radioactive residual product nuclei have been obtained. The $$^{27}$$Al($$p$$, $$x$$)$$^{22}$$Na reaction has been used as a monitor reaction. The experimental data are compared with the MCNPX (BERTINI, ISABEL), CEM03.02, INCL4.2, INCL4.5, PHITS, and CASCADE07 calculations.

Journal Articles

Measurement and simulation of the cross sections for the production of $$^{148}$$Gd in thin $$^{rm nat}$$W and $$^{181}$$Ta targets irradiated with 0.4- to 2.6-GeV protons

Titarenko, Yu. E.*; Batyaev, V. F.*; Titarenko, A. Yu.*; Butko, M. A.*; Pavlov, K. V.*; Florya, S. N.*; Tikhonov, R. S.*; Zhivun, V. M.*; Ignatyuk, A. V.*; Mashnik, S. G.*; et al.

Physics of Atomic Nuclei, 74(4), p.573 - 579, 2011/04

https://doi.org/10.1134/S1063778811040193
 Times Cited Count：8 Percentile：49.7(Physics, Nuclear)

The cross sections for the production of $$^{148}$$Gd in $$^{rm nat}$$W and $$^{181}$$Ta targets irradiated by 0.4-, 0.6-, 0.8-, 1.2-, 1.6-, and 2.6-GeV protons at the ITEP accelerator complex have been measured by direct $$alpha$$ spectrometry without chemical separation. The experimental data have been compared with the data obtained at other laboratories and with the theoretical simulations of the yields on the basis of the BERTINI, ISABEL, CEM03.02, INCL4.2, INCL4.5, CASCADE07, and PHITS codes.

Journal Articles

In-beam $$gamma$$-ray study of the neutron-rich nuclei of $$^{240}$$U, $$^{246}$$Pu, and $$^{250}$$Cm produced by the ($$^{18}$$O, $$^{16}$$O) reaction

Ishii, Tetsuro; Shigematsu, Soichiro*; Makii, Hiroyuki; Asai, Masato; Tsukada, Kazuaki; Toyoshima, Atsushi; Matsuda, Makoto; Makishima, Akiyasu*; Shizuma, Toshiyuki; Kaneko, Junichi*; et al.

Physics of Atomic Nuclei, 70(8), p.1457 - 1461, 2007/08

https://doi.org/10.1134/S1063778807080224
 Times Cited Count：9 Percentile：56.38(Physics, Nuclear)

We have measured deexcitation $$gamma$$ rays in the neutron-rich nuclei of $$^{240}$$U, $$^{246}$$Pu and $$^{250}$$Cm. These nuclei were produced by the ($$^{18}$$O, $$^{16}$$O) two-neutron transfer reactions with a 200, 162 and 162 MeV $$^{18}$$O beams and a $$^{238}$$U, $$^{244}$$Pu and $$^{248}$$Cm targets, respectively, using the tandem accelerator at Tokai, Japan. The $$gamma$$ rays in residual nuclei were measured by taking coincidence with scattering particles using Si $$Delta E$$-$$E$$ detectors. We have identified $$gamma$$ rays in $$^{240}$$U, $$^{246}$$Pu and $$^{250}$$Cm by selecting the kinetic energies of $$^{16}$$O particles which correspond to the excitation energies in these nuclei below their neutron separation energies. The ground-state bands of $$^{240}$$U, $$^{246}$$Pu and $$^{250}$$Cm were established up to 12$$^{+}$$ states and the $$K^{pi}=0^{-}$$ octupole band of $$^{240}$$U was established up to 9$$^{-}$$ state. Because the deformations of these nuclei are well developed, the moments of inertia reflect the pairing gap, which is expected to be smaller, resulting in a larger moment of inertia, at the deformed shell closure. We have found that the moment of inertia of the ground-state band of $$^{248}$$Cm$$_{152}$$ is considerably larger than that of $$^{250}$$Cm$$_{154}$$. This fact supports the existence of the deformed subshell closure at $$N=152$$ in Cm isotopes. On the other hand, the moment of inertia of $$^{246}$$Pu$$_{152}$$ was found to be smaller than that of $$^{244}$$Pu$$_{150}$$, which suggests that the deformed subshell closure at $$N=152$$ weakens or disappears in Pu isotopes. These results are consistent with the prediction by a cranking model calculation.

7 (Records 1-7 displayed on this page)
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