Results 21 to 30 of about 14,604 (234)

Fission hindrances in transfermium nuclei [PDF]

EPJ Web of Conferences, 2023
Very heavy nuclei owe their stability against spontaneous fission to quantum shell effects, which depend on the local density of single-particle states. The height but also the width and the structure of the barrier in multi-dimensional deformation space
Lopez-Martens A., Hauschild K., Svirikhin A.I., Asfari Z., Chelnokov M.L, Chepigin V.I., Dorvaux O., Forge M., Gall B., Isaev A.V., Izosimov I.N., Kessaci K., Kuznetsova A.A., Malyshev O.N., Mukhin R.S., Popeko A.G., Popov Yu.A., Sailaubekov B., Sokol E.A., Tezekbayeva M.S., Yeremin A.V.   +20 more
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Spontaneous Fission of the Heaviest Elements [PDF]

, 1989
Although spontaneous fission was discovered in /sup 238/U in 1940, detailed studies of the process were first made possible in the 1960's with the availability of milligram quantities of /sup 252/Cf. The advent of solid-state detectors made it possible to perform measurements of coincident fission fragments from even very short-lived spontaneous ...
Hoffman, D.C.
openaire   +3 more sources

Prompt neutron emission in the spontaneous fission of $^{246}$Fm [PDF]

, 2022
International audienceAn experiment on the study of the $^{246}$Fm spontaneous fission was conducted using the SHELS separator. The isotope was synthesized in the complete fusion reaction of $^{40}$Ar beam ions and $^{208}$Pb target nuclei.
H. M. Devaraja, N. I. Zamyatin, Chelnokov, M.L., Sokol, E.A., A. V. Andreev, V. I. Chepigin, Dorvaux, O., Svirikhin, A.I., Popov, Yu. A., K. Hauschild, M. A. Bychkov, Gall, B., E. A. Sokol, Kuznetsova, A.A., K. Sh. Zhumadilov, Izosimov, I.N., R. S. Mukhin, M. Forge, Isaev, A.V., A. Lopez-Martens, I. N. Izosimov, A. G. Popeko, Devaraja, H.M., Yu. A. Popov, A. V. Yeremin, Kessaci, K., M. L. Chelnokov, Rahmatinejad, A., T. M. Shneidman, B. Gall, Hauschild, K., Zamyatin, N.I., Zhumadilov, K.Sh., Tezekbayeva, M.S., A. V. Isaev, K. Kessaci, A. I. Svirikhin, Chepigin, V.I., M. S. Tezekbayeva, Lopez-Martens, A., Andreev, A.V., A. A. Kuznetsova, Bychkov, M.A., B. Sailaubekov, D. A. Testov, O. N. Malyshev, Mukhin, R.S., A. Rahmatinejad, Popeko, A.G., Malyshev, O.N., Forge, M., Testov, D.A., Yeremin, A.V., Shneidman, T.M., O. Dorvaux, Sailaubekov, B.   +55 more
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Spontaneous fission properties of superheavy elements [PDF]

, 2017
Spontaneous fission properties of transuranium isotopes are reviewed. Specific emphasis was laid on brief historical overviews of theoretical descriptions and experimental determination of basic properties as spontaneous fission half-lives, fission ...
Hessberger, Fritz-Peter, F. P. Heßberger   +1 more
core   +1 more source

Search for spontaneous fission of plutonium and americium nuclides using gamma spectrometry [PDF]

Ядерна фізика та енергетика
Spontaneous fission in americium and plutonium isotopes was investigated using high-resolution gamma spectrometry. This process was investigated through analysis of a certified PuO2 sample spectrum obtained from the IAEA database of reference spectra ...
I. S. Klyuyev, D. V. Kasperovych, V. V. Kobychev   +2 more
doaj   +1 more source

On partition of the excitation energy between the fission fragments in spontaneous fission of 252Cf [PDF]

, 2019
In this work the correlation has been investigated between the neutron numbers and average excitation energies for the complementary fission fragments in the spontaneous fission of 252Cf. The results of the experimental work on the average neutron number,
KOURMO, M.; AHMADOV, H.M. ; KOÇ, R.
core   +1 more source

Artificial intelligent identification of apatite fission tracks based on machine learning

Machine Learning: Science and Technology, 2023
Over the past half century, apatite fission track (AFT) thermochronometry has been widely used in the studies of thermal histories of Earth’s uppermost crust.
Zuoting Ren, Shichao Li, Perry Xiao, Xiaopeng Yang, Hongtao Wang   +4 more
doaj   +1 more source

Spontaneous fission of 246Fm

, 2022
An experiment on the study of the $^{246}$Fm spontaneous fission was conducted using the SHELS separator. The isotope was synthesized in the complete fusion reaction of $^{40}$Ar beam ions and $^{208}$Pb target nuclei. The neutron yields of $^{246}$Fm spontaneous fission ($\overlineν = 3.79\pm0.30$, $σ^{2}_ν = 2.1$) were obtained using the SFiNx ...
Isaev, A. V., Mukhin, R. S., Andreev, A. V., Bychkov, M. A., Chelnokov, M. L., Chepigin, V. I., Devaraja, H. M., Dorvaux, O., Forge, M., Gall, B., Hauschild, K., Izosimov, I. N., Kessaci, K., Kuznetsova, A. A., Lopez-Martens, A., Malyshev, O. N., Popeko, A. G., Popov, Yu. A., Rahmatinejad, A., Sailaubekov, B., Shneidman, T. M., Sokol, E. A., Svirikhin, A. I., Testov, D. A., Tezekbayeva, M. S., Yeremin, A. V., Zamyatin, N. I., Zhumadilov, K. Sh.   +27 more
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The investigation of properties of short-lived SF isotopes (Z > 100) at the focal plane of VASSILISSA separator

EPJ Web of Conferences, 2013
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.
Svirikhin Alexandr, Andreev Alexander, Dushin Victor, Chelnokov Maxim, Chepigin Victor, Gupta Mohini, Isaev Andrey, Izosimov Igor, Katrasev Denis, Kuznetsov Alexey, Malyshev Oleg, Minkova Ani, Mullins Simon, Popeko Andrey, Sokol Evgeniy, Yeremin Alexander   +15 more
doaj   +1 more source

Neutron multiplicity at spontaneous fission of [PDF]

, 2010
The neutron-deficient isotope 246Fm , produced in the complete fusion reaction 40Ar$ + $208Pb , was investigated. The main goal of the experiment was to determine the neutron multiplicity at spontaneous fission of this isotope.
E. A. Sokol, A. V. Yeremin, V. I. Chepigin, M. L. Chelnokov, O. N. Malyshev, A. Minkova, I. N. Izosimov, D. E. Katrasev, A. G. Popeko, S. M. Lukyanov, V. N. Dushin, Yu. E. Penionzhkevich, A. I. Svirikhin, I. V. Izosimov   +13 more
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