Study of Exotic Nuclei in the Flerov Laboratory of Nuclear Reactions at Joint Institute for Nuclear Research

In the sixties of the XX century, the possibility of existence of the region of increased stability of superheavy nuclei in the vicinity of Z | 114 and N | 184 was proved. For the first time a successful synthesis of superheavy elements was carried out in the Flerov Laboratory of Nuclear Reactions of the Joint Institute for Nuclear Research (JINR). Superheavy elements of D.I. Mendeleev Periodic Table of the Elements with atomic numbers 114–118 were synthesized in the fusion reactions of the nuclei of the transuranic elements with calcium-48 nuclei. The article deals with the choice of reactions for the synthesis of new elements, methods of studying their nuclear-physical and chemical properties. The experimental complex “Factory of superheavy elements” created in JINR and prospects of further research development are described.

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Start-Up of the DC-280 Cyclotron, the Basic Facility of the Factory of Superheavy Elements of the Laboratory of Nuclear Reactions at the Joint Institute for Nuclear Research

Physics of Particles and Nuclei Letters ◽

10.1134/s1547477119060177 ◽

2019 ◽

Vol 16 (6) ◽

pp. 866-875 ◽

Cited By ~ 3

Author(s):

G. G. Gulbekian ◽

S. N. Dmitriev ◽

M. G. Itkis ◽

Yu. Ts. Oganessyan ◽

B. N. Gikal ◽

...

Keyword(s):

Nuclear Reactions ◽

Nuclear Research ◽

Superheavy Elements ◽

Joint Institute ◽

Start Up

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The nuclear channel effect in the isomeric ratio of the reaction products

Nuclear Science and Technology ◽

10.53747/jnst.v9i1.55 ◽

2019 ◽

Vol 9 (1) ◽

pp. 9-20

Author(s):

Duc Thiep Tran ◽

Thi An Truong ◽

Minh Hue Bui ◽

Viet Cuong Phan ◽

Belov A. G. ◽

...

Keyword(s):

Nuclear Reactions ◽

Nuclear Research ◽

Isomeric Ratio ◽

Nuclear Data ◽

Photon Flux ◽

Reaction Products ◽

Model Interpretation ◽

Channel Effect ◽

Epithermal Neutrons ◽

Flerov Laboratory

This work presents the experimental study of the isomeric ratio of 115mCd to 115gCd produced in 116Cd(γ, n)115m,gCd photonuclear reaction and 116Cd(n, γ)115m,gCd neutron capture reaction by thermal, epithermal and mixed thermal and epithermal neutrons. The investigated samples were natural cadmium irradiated at the bremsstrahlung photon flux, in the neutron source constructed at the electron accelerator Microtron MT-25 of the Flerov Laboratory of Nuclear Reaction, Joint Institute for Nuclear Research, Dubna, Russia. The results were analyzed, discussed, compared and combined with those of other authors in the existing literature to examine the role of the nuclear channel effect in the isomeric ratio and provide the nuclear data for theoretical model interpretation of nuclear reactions and applied research.

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Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research

Nuclear Physics News ◽

10.1080/10506899408210215 ◽

1994 ◽

Vol 4 (1) ◽

pp. 5-11

Author(s):

Yu. T. Oganessian ◽

B. I. Pustylnik

Keyword(s):

Nuclear Reactions ◽

Nuclear Research ◽

Joint Institute

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Superheavy elements

Вестник Российской академии наук ◽

10.31857/s0869-5873896563-570 ◽

2019 ◽

Vol 89 (6) ◽

pp. 563-570

Author(s):

Yu. Ts. Oganessian

Keyword(s):

Periodic Table ◽

Nuclear Reactions ◽

Nuclear Research ◽

Superheavy Elements ◽

Superheavy Nuclei ◽

Fusion Reactions ◽

Nuclear Theory ◽

Oak Ridge ◽

Flerov Laboratory ◽

Heaviest Elements

Synthesis of superheavy elements predicted by microscopic nuclear theory is investigated. The heaviest elements with Z = 114–118 were synthesized by fusion reactions of actinide nuclei with 48Ca ions accelerated using the U-400 complex at the Flerov Laboratory of Nuclear Reactions (FLNR), one of seven laboratories that comprise the Joint Institute for Nuclear Research (JINR) located in Dubna, Russia. The experiments were carried out in collaboration with physicists and chemists working at the Livermore and Oak Ridge national laboratories in located in California and Tennessee, respectively. Discovery of these elements allowed completion of the seventh period of the periodic table. The microscopic nuclear theory’s fundamental predictions about the possible existence of superheavy elements received the experimental confirmation. A new laboratory, i.e., the "STE Factory" associated with the JINR FLNR, has been established to research superheavy nuclei.

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