arXiv subjects

D. E. Katrasev

Publications and source records attributed to D. E. Katrasev.

3 recordsLinked to original sources

arXiv2026

The electromagnetic decay of $^{250m}$No and the stability of neutron deficient Rf isotopes

The electromagnetic decay of the $\approx$40 $μ$s isomer of $^{250}$No has been investigated using the \textsc{Geant4} toolkit for the simulations of the interaction of particles through matter. It is concluded that the decay does not follow the pattern established in the lighter isotones, where the isomer decays directly to members of the ground state rotational band. An alternative scenario is proposed. The implications on the location of the isotopic border for neutron deficient Rf isotopes are discussed.

nucl-ex↗

arXiv2021

Alpha-decay spectroscopy of $^{257}$Rf

The decay properties of the ground state and excited states of $^{257}$Rf have been investigated with the detector array GABRIELA at the FLNR, Dubna. The electromagnetic decay of a new excited state in $^{253}$No has been observed. The state lies 750 keV above the ground state and is favourably populated in the alpha decay of the low-lying spin isomer of $^{257}$Rf. It decays to the 9/2$^-$ ground state by an M1 transition and is assigned the 11/2$^-$[725] Nilsson configuration. The presence of this state suggests a possible reinterpretation of the decay of the high-K isomer in $^{253}$No.

nucl-ex↗

arXiv2019

New front and back-end electronics for the upgraded GABRIELA detection system

The GABRIELA [1] set-up is used at the FLNR to perform detailed nuclear structure studies of transfermium nuclei. Following the modernization of the VASSILISSA separator (SHELS) [2] the GABRIELA detection system has also been upgraded. The characteristics of the upgraded detection system will be presented along with results from some recent electronics tests.

physics.ins-det↗