Fission dynamics for capture reactions in Ni-58,Ni-64+Pb-208 systems: New results in terms of thermal energy and neutron multiplicity correlated distributions
Nema prikaza
Autori
Donadille, LLiatard, E
Benoit, B
Hanappe, F
Stuttge, L
Rudolf, G
Kozulin, EM
Lazarev, YA
Desesquelles, P
Litnevsky, LA
Bilwes, B
Bruandet, JF
Costa, GJ
Dorvaux, O
Farget, Fanny
Fayot, J
Guillaume, G
Huck, A
Itkis, I
Itkis, MG
Jokić, Stevan
Kondratiev, NA
Lecolley, FR
Lecolley, JF
Oganessian, YT
Perrin, G
Santos, D
Schussler, F
Tomasevic, S
Viano, JB
Vignon, B
Članak u časopisu
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The neutron multidetector DeMoN has been used to investigate the symmetric splitting dynamics in the reactions Ni-58,Ni-64 + Pb-208 With excitation energies ranging from 65 to 186 MeV for the composite system. An analysis based on the new backtracing technique has been applied on the neutron data to determine the two-dimensional correlations between the parent composite system initial thermal energy (E-CN(th)) and the total neutron multiplicity (nu(tot)), and between pre- and post-scission neutron multiplicities (nu(pre) and nu(post), respectively). The nu(pre) distribution shape indicates the possible coexistence of fast-fission and fusion-fission for the system Ni-58 + (208)pb (E-beam = 8.86 A MeV). The analysis of the neutron multiplicities in the framework of the combined dynamical statistical model (CDSM) gives a reduced friction coefficient beta = 23 +/- (25)(12) x 10(21) s(-1), above the one-body dissipation limit. The corresponding fission time is tau(f) = 40 +/- (46)(20) x 10(...-21) s. (C) 1999 Elsevier Science B.V. All rights reserved.
Ključne reči:
Pb-208(Ni-58, F) / E-beam=6.50-8.86 A MeV / Pb-208(Ni-64, F) / E-beam=5.89-7.38 AMeV / measured fission fragments mass / kinetic energy distributions / neutron multiplicity / deduced thermal energy distribution / total / pre- and post-scission neutron multiplicity distributions / friction coefficient / fission timeIzvor:
Nuclear Physics A, 1999, 656, 2, 259-283
DOI: 10.1016/S0375-9474(99)00306-1
ISSN: 0375-9474
WoS: 000082396500004
Scopus: 2-s2.0-0033618813
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Donadille, L AU - Liatard, E AU - Benoit, B AU - Hanappe, F AU - Stuttge, L AU - Rudolf, G AU - Kozulin, EM AU - Lazarev, YA AU - Desesquelles, P AU - Litnevsky, LA AU - Bilwes, B AU - Bruandet, JF AU - Costa, GJ AU - Dorvaux, O AU - Farget, Fanny AU - Fayot, J AU - Guillaume, G AU - Huck, A AU - Itkis, I AU - Itkis, MG AU - Jokić, Stevan AU - Kondratiev, NA AU - Lecolley, FR AU - Lecolley, JF AU - Oganessian, YT AU - Perrin, G AU - Santos, D AU - Schussler, F AU - Tomasevic, S AU - Viano, JB AU - Vignon, B PY - 1999 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2275 AB - The neutron multidetector DeMoN has been used to investigate the symmetric splitting dynamics in the reactions Ni-58,Ni-64 + Pb-208 With excitation energies ranging from 65 to 186 MeV for the composite system. An analysis based on the new backtracing technique has been applied on the neutron data to determine the two-dimensional correlations between the parent composite system initial thermal energy (E-CN(th)) and the total neutron multiplicity (nu(tot)), and between pre- and post-scission neutron multiplicities (nu(pre) and nu(post), respectively). The nu(pre) distribution shape indicates the possible coexistence of fast-fission and fusion-fission for the system Ni-58 + (208)pb (E-beam = 8.86 A MeV). The analysis of the neutron multiplicities in the framework of the combined dynamical statistical model (CDSM) gives a reduced friction coefficient beta = 23 +/- (25)(12) x 10(21) s(-1), above the one-body dissipation limit. The corresponding fission time is tau(f) = 40 +/- (46)(20) x 10(-21) s. (C) 1999 Elsevier Science B.V. All rights reserved. T2 - Nuclear Physics A T1 - Fission dynamics for capture reactions in Ni-58,Ni-64+Pb-208 systems: New results in terms of thermal energy and neutron multiplicity correlated distributions VL - 656 IS - 2 SP - 259 EP - 283 DO - 10.1016/S0375-9474(99)00306-1 ER -
@article{ author = "Donadille, L and Liatard, E and Benoit, B and Hanappe, F and Stuttge, L and Rudolf, G and Kozulin, EM and Lazarev, YA and Desesquelles, P and Litnevsky, LA and Bilwes, B and Bruandet, JF and Costa, GJ and Dorvaux, O and Farget, Fanny and Fayot, J and Guillaume, G and Huck, A and Itkis, I and Itkis, MG and Jokić, Stevan and Kondratiev, NA and Lecolley, FR and Lecolley, JF and Oganessian, YT and Perrin, G and Santos, D and Schussler, F and Tomasevic, S and Viano, JB and Vignon, B", year = "1999", abstract = "The neutron multidetector DeMoN has been used to investigate the symmetric splitting dynamics in the reactions Ni-58,Ni-64 + Pb-208 With excitation energies ranging from 65 to 186 MeV for the composite system. An analysis based on the new backtracing technique has been applied on the neutron data to determine the two-dimensional correlations between the parent composite system initial thermal energy (E-CN(th)) and the total neutron multiplicity (nu(tot)), and between pre- and post-scission neutron multiplicities (nu(pre) and nu(post), respectively). The nu(pre) distribution shape indicates the possible coexistence of fast-fission and fusion-fission for the system Ni-58 + (208)pb (E-beam = 8.86 A MeV). The analysis of the neutron multiplicities in the framework of the combined dynamical statistical model (CDSM) gives a reduced friction coefficient beta = 23 +/- (25)(12) x 10(21) s(-1), above the one-body dissipation limit. The corresponding fission time is tau(f) = 40 +/- (46)(20) x 10(-21) s. (C) 1999 Elsevier Science B.V. All rights reserved.", journal = "Nuclear Physics A", title = "Fission dynamics for capture reactions in Ni-58,Ni-64+Pb-208 systems: New results in terms of thermal energy and neutron multiplicity correlated distributions", volume = "656", number = "2", pages = "259-283", doi = "10.1016/S0375-9474(99)00306-1" }
Donadille, L., Liatard, E., Benoit, B., Hanappe, F., Stuttge, L., Rudolf, G., Kozulin, E., Lazarev, Y., Desesquelles, P., Litnevsky, L., Bilwes, B., Bruandet, J., Costa, G., Dorvaux, O., Farget, F., Fayot, J., Guillaume, G., Huck, A., Itkis, I., Itkis, M., Jokić, S., Kondratiev, N., Lecolley, F., Lecolley, J., Oganessian, Y., Perrin, G., Santos, D., Schussler, F., Tomasevic, S., Viano, J.,& Vignon, B.. (1999). Fission dynamics for capture reactions in Ni-58,Ni-64+Pb-208 systems: New results in terms of thermal energy and neutron multiplicity correlated distributions. in Nuclear Physics A, 656(2), 259-283. https://doi.org/10.1016/S0375-9474(99)00306-1
Donadille L, Liatard E, Benoit B, Hanappe F, Stuttge L, Rudolf G, Kozulin E, Lazarev Y, Desesquelles P, Litnevsky L, Bilwes B, Bruandet J, Costa G, Dorvaux O, Farget F, Fayot J, Guillaume G, Huck A, Itkis I, Itkis M, Jokić S, Kondratiev N, Lecolley F, Lecolley J, Oganessian Y, Perrin G, Santos D, Schussler F, Tomasevic S, Viano J, Vignon B. Fission dynamics for capture reactions in Ni-58,Ni-64+Pb-208 systems: New results in terms of thermal energy and neutron multiplicity correlated distributions. in Nuclear Physics A. 1999;656(2):259-283. doi:10.1016/S0375-9474(99)00306-1 .
Donadille, L, Liatard, E, Benoit, B, Hanappe, F, Stuttge, L, Rudolf, G, Kozulin, EM, Lazarev, YA, Desesquelles, P, Litnevsky, LA, Bilwes, B, Bruandet, JF, Costa, GJ, Dorvaux, O, Farget, Fanny, Fayot, J, Guillaume, G, Huck, A, Itkis, I, Itkis, MG, Jokić, Stevan, Kondratiev, NA, Lecolley, FR, Lecolley, JF, Oganessian, YT, Perrin, G, Santos, D, Schussler, F, Tomasevic, S, Viano, JB, Vignon, B, "Fission dynamics for capture reactions in Ni-58,Ni-64+Pb-208 systems: New results in terms of thermal energy and neutron multiplicity correlated distributions" in Nuclear Physics A, 656, no. 2 (1999):259-283, https://doi.org/10.1016/S0375-9474(99)00306-1 . .