Results 11 to 20 of about 422,547 (263)

Forbidden nuclear reactions [PDF]

Physical Review C, 2019
Exothermal nuclear reactions which become forbidden due to Coulomb repulsion in the\ $\varepsilon \rightarrow 0$ limit ($\lim_{\varepsilon \rightarrow 0}σ\left( \varepsilon \right) =0$) are investigated. ($σ\left( \varepsilon \right) $ is the cross section and $\varepsilon $ is the center of mass energy.) It is found that any perturbation may mix ...
Kálmán, Péter, Keszthelyi, Tamás
openaire   +2 more sources

Carbon Elastic and Inelastic Stopping-Power Components for Heavy Ions at Bohr and Higher Velocities

Atoms, 2023
Carbon stopping power (SP) data for heavy ions (HIs), obtained around Bohr velocities, revealed remarkably lower values than those predicted using the SRIM/TRIM calculations/simulations.
Roman N. Sagaidak
doaj   +1 more source

Upgrading the ECR ion source within FAMA [PDF]

Nuclear Technology and Radiation Protection, 2018
Recent upgrading of the Facility for Modification and Analysis of Materials with Ion Beams - FAMA, in the Laboratory of Physics of the Vinča Institute of Nuclear Sciences, included the modernization of its electron cyclotron resonance ion source.
Efremov Andrey A., Bogomolov Sergey L., Bekhterev Vladimir V., Dobrosavljević Aleksandar S., Nešković Nebojša B., Trajić Ivan M., Ćirić Dragana D.   +6 more
doaj   +1 more source

Nucleon and delute cluster transfer in the reactions 6Li + 9Be [PDF]

EPJ Web of Conferences
The results of experiments on studying nucleon and cluster transfer processes in the reactions of the 6Li (68 MeV) ions with the 9Be target nuclei are presented. The angular distributions for the reaction channels 9Be(6Li,α)11Bg.s and 9Be(6Li,10B)5Heg.s.
Lukyanov Sergei, Azhibekov Aidos, Issatayev Talgat, Penionzhkevich Yuri, Mendibayev Kairat, Shakhov Alexey, Maslov Vladimir, Chau Nguyen Hoai   +7 more
doaj   +1 more source

Nuclear Structure and Simple Nuclear Reactions [PDF]

Physical Review, 1960
Recently it has become increasingly evident that some assumptions in the nuclear model used for the Monte Carlo calculations yield cross section values which are not in accord with experiment. In particular, calculations of ($p, \mathrm{pn}$)-reaction cross sections in the Bev energy range give values which are low by factors of two to nine when ...
openaire   +4 more sources

Metallic Nanoparticles: A Useful Prompt Gamma Emitter for Range Monitoring in Proton Therapy?

Radiation, 2021
In clinical practice, dose delivery in proton therapy treatment is affected by uncertainties related to the range of the beam in the patient, which requires medical physicists to introduce safety margins on the penetration depth of the beam.
Sébastien Penninckx, Félicien Hespeels, Julien Smeets, Julien L. Colaux, Stéphane Lucas, Anne-Catherine Heuskin   +5 more
doaj   +1 more source

The tardigrade Dsup protein enhances radioresistance in Drosophila melanogaster and acts as an unspecific repressor of transcription

iScience, 2023
Summary: The tardigrade-unique damage suppressor protein (Dsup) can protect DNA from ionizing radiation and reactive oxygen species (ROS). In this study, we generated Dsup-expressing lines of Drosophila melanogaster and demonstrated that Dsup increased ...
Mikhail Zarubin, Talyana Azorskaya, Olga Kuldoshina, Sergey Alekseev, Semen Mitrofanov, Elena Kravchenko   +5 more
doaj   +1 more source

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

Study of total cross sections for the reactions 8He + 28Si and 6,8Li + 28Si [PDF]

EPJ Web of Conferences
This study proposes a new approach to determining the effective matter radii of colliding nuclei, based on a combination of a phenomenological optical model and classical trajectories of nuclei.
Naumenko Mikhail, Samarin Viacheslav, Sobolev Yuri, Stukalov Sergey, Penionzhkevich Yuri   +4 more
doaj   +1 more source

Interphase Surface Stability in Liquid-Liquid Membrane Contactors Based on Track-Etched Membranes

Membranes, 2021
A promising solution for the implementation of extraction processes is liquid–liquid membrane contactors. The transfer of the target component from one immiscible liquid to another is carried out inside membrane pores.
Stepan Bazhenov, Olga Kristavchuk, Margarita Kostyanaya, Anton Belogorlov, Ruslan Ashimov, Pavel Apel   +5 more
doaj   +1 more source