Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Yu. B. Ostapenko"'
Autor:
Yu. B. Ostapenko, G. S. Boykov, G. A. Kudyaev, G.N. Smirenkin, V. D. Dmitriev, M. I. Svirin, V.M. Maslov
Publikováno v:
Annals of Nuclear Energy. 21:585-588
Using time-of-flight technique neutron spectra from 2.9 and 14.7 MeV neutron-induced fission of 232 Th, 235 U, 238 U and 237 Np have been measured. The experimental evidence of non-equilibrium neutron emission prior to fission has been obtained. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fbf2538bf1f14bfdb1d10516f75a3c5
https://doi.org/10.1016/0306-4549(94)90068-x
https://doi.org/10.1016/0306-4549(94)90068-x
Publikováno v:
Atomic Energy. 76:199-203
The cross sections for fissioning of {sup 235,238}U by fast neutrons have been studied experimentally in greater detail and with higher accuracy than the same cross sections for other actinide nuclei. As a result, they are used as neutron standards i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a94b757c5b172015235758f4e9559028
https://doi.org/10.1007/bf02408192
https://doi.org/10.1007/bf02408192
Publikováno v:
Zeitschrift f�r Physik A: Hadrons and Nuclei. 340:79-84
The spectra of neutrons emitted in fission of232Th,235U and238U induced by 2.9- and 14.7- MeV neutrons (below and above the chance fission threshold, respectively) were measured by the time-of-flight method. Two effects were observed in the prefissio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3a0e55faaa08bcebe14a73a077495ec
https://doi.org/10.1007/bf01284483
https://doi.org/10.1007/bf01284483
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 67:793-795
The results of a careful investigation of the mass-energy-charge correlations of the fragments produced by fission of thorium-232 by 5 MeV neutrons are presented. The phenomenon of truly cold fragmentation of a thorium nucleus into tellurium-134 and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60ccf1dad4f28fdb78f7e02cde70ed46
https://doi.org/10.1134/1.567750
https://doi.org/10.1134/1.567750
Autor:
A. Goverdovski, Yu. B. Ostapenko
Publikováno v:
Tours symposium on nuclear physics III.
Fission fragments mass-kinetic energy correlations have been investigated for uranium-235 thermal fission. Pronounced shifts of mass components were observed and then used for extraction of prescission neutrons multiplicities νPRE. It was shown that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ee7a08bfbd047b64d56868edd72d972
https://doi.org/10.1063/1.55149
https://doi.org/10.1063/1.55149
Publikováno v:
Soviet Physics Uspekhi. 27:649-667
The article is devoted to quantum effects in highly deformed nuclei and the related features of the fission mechanism in the low-energy photofission of heavy nuclei. The following questions are considered: the spectrum of transition states (fission c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c17510855ba2fea7f329c0248601e2f
https://doi.org/10.1070/pu1984v027n09abeh004153
https://doi.org/10.1070/pu1984v027n09abeh004153
Publikováno v:
Physical Review C. 24:529-532
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f5a114fe0bdadc885f39a2d92b3f874
https://doi.org/10.1103/physrevc.24.529
https://doi.org/10.1103/physrevc.24.529
Autor:
G.N. Smirenkin, A.V. Ignatyuk, V.E. Zhuchko, Yu. M. Tsipenyuk, Yu. B. Ostapenko, A.S. Soldatov
Publikováno v:
Physics Letters B. 68:323-326
Experimental data on yields and angular distributions of photofission fragments of 236U and 238U are presented. The anomalies caused by delayed fission from the low-lying isomer states of the second well have been clearly observed in the energy depen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d90e0cfe0697016206f17f7bbca5da66
https://doi.org/10.1016/0370-2693(77)90485-3
https://doi.org/10.1016/0370-2693(77)90485-3
Publikováno v:
Nuclear Instruments and Methods. 136:373-378
Three methods for the solution of experimental subthreshold photofission yield functions for cross-sections of 235 U and 238 U in the energy range 3.6–7 MeV are presented. Comparison of the resulting cross-sections with the data obtained from react
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3148138d597fbff629cf78de31e2fcbf
https://doi.org/10.1016/0029-554x(76)90222-6
https://doi.org/10.1016/0029-554x(76)90222-6