A5053046461- Nuclear physics research studies
- Nuclear Physics and Applications
- Astronomical and nuclear sciences
- Atomic and Molecular Physics
- Nuclear reactor physics and engineering
- Radiation Detection and Scintillator Technologies
- Quantum Chromodynamics and Particle Interactions
- Atmospheric and Environmental Gas Dynamics
- Ionosphere and magnetosphere dynamics
- Superconducting Materials and Applications
- Nuclear Materials and Properties
- Mass Spectrometry Techniques and Applications
- Fusion materials and technologies
- Particle Detector Development and Performance
- Magnetic confinement fusion research
- Molten salt chemistry and electrochemical processes
- Medical Imaging Techniques and Applications
- Rare-earth and actinide compounds
- Particle accelerators and beam dynamics
- Isotope Analysis in Ecology
- Radioactive Decay and Measurement Techniques
Joint Institute for Nuclear Research
2019-2024
National Nuclear Center of the Republic of Kazakhstan
2022-2024
L. N. Gumilyov Eurasian National University
2019-2024
Institute for Nuclear Research
2022
Dubna State University
2019
We present results of the first experiment aimed at synthesis Mc isotopes in 243Am+48Ca reaction performed new gas-filled separator DGFRS-2 online to cyclotron DC280 Super Heavy Element Factory JINR. Fifty-five decay chains 288Mc and six assigned 289Mc were detected. The α 268Db with an energy 7.6–8.0 MeV, half-life 16+6−4h, a branch 55+20−15% was registered for time, spontaneously fissioning isotope 264Lr 4.9+2.1−1.3h identified. cross section 243Am(48Ca,3n)288Mc measured be 17.1+6.3−4.7...
The $^{232}\mathrm{Th}$($^{48}\mathrm{Ca},5n$)$^{275}\mathrm{Ds}$ and $^{238}\mathrm{U}$($^{40}\mathrm{Ar},5n$)$^{273}\mathrm{Ds}$ reactions have been studied at the gas-filled separator DGFRS-2 Superheavy Element Factory Flerov Laboratory of Nuclear Reactions, Joint Institute for Research. For first time, a new isotope $^{275}\mathrm{Ds}$ with half-life $0.{43}_{\ensuremath{-}0.12}^{+0.29}$ ms \ensuremath{\alpha}-particle energy $11.20\ifmmode\pm\else\textpm\fi{}0.02$ MeV was synthesized in...
In this paper, we present results of the second experiment on synthesis Mc isotopes in $^{243}\mathrm{Am}+^{48}\mathrm{Ca}$ reaction performed at gas-filled separator DGFRS-2 SHE Factory JINR. The new isotope $^{286}\mathrm{Mc}$ was synthesized, and its half-life $20\begin{array}{c}+98\\ \ensuremath{-}9\end{array}$ ms \ensuremath{\alpha}-particle energy $10.71\ifmmode\pm\else\textpm\fi{}0.02$ MeV were determined. A $^{286}\mathrm{Mc} \ensuremath{\alpha}\text{\ensuremath{-}}\mathrm{decay}$...
Experiments using a $^{48}\mathrm{Ca}$ beam on $^{238}\mathrm{U}$ and $^{242}\mathrm{Pu}$ targets to produce superheavy nuclei were performed at the gas-filled separator DGFRS-2 online new cyclotron DC280 SHE Factory JINR. The decay properties of $^{286}\mathrm{Fl}$ $^{287}\mathrm{Fl}$, as well their \ensuremath{\alpha}-decay products, refined after detection 25 69 chains, respectively. In addition, 16 chains $^{283}\mathrm{Cn}$ observed in $^{238}\mathrm{U}+^{48}\mathrm{Ca}$ reaction....
The Th232+Ca48 reaction has been studied at the gas-filled separator DGFRS-2 online to cyclotron DC280 SHE Factory JINR. Three new nuclides were synthesized for first time: a spontaneously fissioning (SF) Sg268 with half-life TSF=13+17−4 s; an α decaying Hs272 Tα=0.16+0.19−0.06 s and Eα=9.63±0.02MeV; Ds276 T1/2=0.15+0.10−0.04 ms, Eα=10.75±0.03MeV, SF branch of 57%. decay properties these nuclei are in agreement systematics experimental partial half-lives α-decay energies heavy known nuclei,...
A new algorithm for the analog spectrometer of DGFRS-2 setup installed at DC-280 cyclotron is presented. The main goal application this to search an optimal time correlation recoilalpha parameter directly during acquisition C++ code execution. real-time flexible in addition conventional ER − a algorithm, which has been used several years DGFRS-1 U-400 FLNR cyclotron, parts are 48×128 strip DSSD detector (Double Side Strip Detector) and low-pressure gaseous detector. They presented...
The paper describes a new E-Delta-E detection module which includes position-sensitive double-sided strip detector (DSSD) and low-pressure pentane-filled Delta-E chamber for of Evaporation Residues (ER) in complete fusion nuclear reactions. goal is to synthesize superheavy isotopes at the DC-280 (Dubna Cyclotron) cyclotron Joint Institute Nuclear Research (JINR). With 48Ca ion beam intensity about 5-7 pmcA (particle micro ampere) counter count rate approximately 1.0E+4 sec-1, we observe...
Cross-section data for Th nuclei produced in the $^{48}\mathrm{Ca}+^{170}\mathrm{Yb}$ and $^{54}\mathrm{Cr}+^{164}\mathrm{Dy}$ fusion-evaporation reactions leading to same $^{218}\mathrm{Th}^{*}$ compound nucleus (CN) were obtained with Dubna Gas-Filled Recoil Separator (DGFRS-2) at energies around fusion barriers. These data, corresponding neutron evaporation channels both reactions, are considered from point of view CN formation probability going $^{48}\mathrm{Ca}$-...
Abstract In this paper, we present the results of first beam tests detection system at focal plane Dubna Gas-Filled Recoil Separator-2 (DGFRS-2), which receives beams from DC-280 FLNR cyclotron. The high intensity 48 Ca +10 heavy ions cyclotron enables us to obtain a number superheavy recoils sufficient compare both measured and calculated spectra implanted into silicon detector. A real-time algorithm search for an Evaporation Residue (ER) — α correlated sequences is described in brief. It...
Abstract Experiments on the synthesis of isotopes element 114 in 242 Pu + 48 Ca reaction were carried out at a new gas-filled separator DGFRS-2 online to DC-280 cyclotron Superheavy Element Factory Flerov Laboratory Nuclear Reactions, Joint Institute for Research. The decay properties 286 Fl and 287 Fl, as well their α-decay products, refined. possibility existence isomeric states successive α-decays is discussed. maximum cross section $$10.4_{{ - 2.1}}^{{ 3.5}}$$ pb was measured Pu( Ca, 3 n...
In this paper, we present the results of first beam tests detection system at focal plane Dubna Gas-Filled Recoil Separator-2 (DGFRS-2), which receives beams from DC-280 FLNR cyclotron. The high intensity $^{48}$Ca$^{+10}$ heavy ions cyclotron enables us to obtain a number superheavy recoils sufficient compare both measured and calculated spectra implanted into silicon detector. A real-time algorithm search for an Evaporation Residue (ER) -- $\alpha$ correlated sequences is described in...
A simple routine is proposed for monitoring the efficiency value of a low pressure pentane filled multi-wire proportional chamber (MWPC) in long term experiments. The algorithm utilizes two parameter approximation background function. It based on linear energy range 4.8 to 10.0 MeV and an exponential neutron induced tail 1.5 4.2 region. This specific interval used measure value. Prior discussing algorithm, description DGFRS-2 setup detection module provided. Additionally, example its...
In this paper we report on the reasonable nature of sharing signals measured with large area DSSD detectors. This detector manufactured by Micron Semiconductor (UK) and in use at DGFRS-2 setup installed DC-280 ultra intense cyclotron FLNR, JINR. Some results from other setups are presented. We believe that pitch value as well threshold play dominant role charge process. parameters influenced process considered brief too, but sometimes semi-quantity form.
Abstract The durability of the targets and entrance window foils Dubna gas-filled recoil separator working at high intensive heavy ion beams was considered. temperature, as a factor determining their durability, calculated function time in conditions pulsed heating by beam, followed radiative cooling radiation emitted from surfaces. temperatures were for 48 Ca beam with intensity expected DC-280 accelerator. With temperature time, optimal parameters target operation chosen.