A5035340204- Nuclear Physics and Applications
- Nuclear physics research studies
- Electron and X-Ray Spectroscopy Techniques
- Cold Fusion and Nuclear Reactions
- Nuclear reactor physics and engineering
- Ion-surface interactions and analysis
- Global Energy and Sustainability Research
- Advanced Chemical Physics Studies
- Atomic and Molecular Physics
- Nuclear Materials and Properties
- X-ray Spectroscopy and Fluorescence Analysis
- Extraction and Separation Processes
- Cardiac electrophysiology and arrhythmias
- Quantum Chromodynamics and Particle Interactions
- Radiation Therapy and Dosimetry
- Semiconductor materials and devices
- Integrated Circuits and Semiconductor Failure Analysis
- DNA Repair Mechanisms
- Cardiac Arrhythmias and Treatments
- Graphite, nuclear technology, radiation studies
- Astronomical and nuclear sciences
- Magnetic confinement fusion research
- Nuclear and radioactivity studies
- Nuclear Engineering Thermal-Hydraulics
- Particle Detector Development and Performance
University of Szczecin
2016-2025
Institute of Physics
2011-2025
National Centre for Nuclear Research
1986-2025
University of Warsaw
2024
Max Planck Institute for Nuclear Physics
2013-2024
Czech Academy of Sciences, Institute of Physics
2015
Technische Universität Berlin
2002-2013
Helmholtz-Zentrum Berlin für Materialien und Energie
2010-2013
Lodz University of Technology
2008-2010
University of Łódź
2008-2010
Abstract The optimized superconducting stellarator device Wendelstein 7-X (with major radius , minor and plasma volume) restarted operation after the assembly of a graphite heat shield 10 inertially cooled island divertor modules. This paper reports on results from first high-performance operation. Glow discharge conditioning ECRH discharges in helium turned out to be important for density edge radiation control. Plasma densities with central electron temperatures were routinely achieved...
Recent measurements of the reaction $^{2}\mathrm{H}$$(d,p)$$^{3}\mathrm{H}$ in metallic environments at very low energies performed by different experimental groups point to an enhanced electron screening effect. However, resulting differ strongly for diverse host metals and experiments. Here, we present new results investigations interfering processes irradiated targets. These inside set special challenges pitfalls that make them data analysis particularly error prone. There are...
In response to the growing demand for advanced nuclear reactor technologies, this study addresses significant gaps in thermal-hydraulic modelling dual fluid reactors (DFRs) by integrating Kays correlation implement a variable turbulent Prandtl number Reynolds-averaged Navier–Stokes (RANS) simulations. Traditional approaches employing constant value of have proven inadequate, leading inaccurate heat transfer predictions low liquids. The carefully selects appropriate formula DFR context,...
The electron screening effect is responsible for a significant increase in the nuclear reaction rates metals at very low energies. This dependent on local crystal structure of metallic target and occurrence defects or additional elemental impurities crystal. Here, we studied deuteron–deuteron fusion reactions zirconium targets previously implanted with carbon oxygen ions. 2H(d,p)3H yield was measured two deuteron energies, 8 20 keV, order to determine strength its dependence density...
To study the electron screening of nuclear reactions in metallic environments, angular distributions and thick target yields fusion 2H(d,p)3H 2H(d,n)3He have been measured on deuterons implanted three different metal targets (Al, Zr Ta) for beam energies ranging from 5 to 60 keV. The experimentally determined values energy are about one order magnitude larger than value achieved a gas experiment significantly theoretical predictions. A clear material dependence has established.
Abstract The aim of this study is to present an application ToF‐SIMS in forensic research, especially the imaging fingerprints and detection traces various substances, which do not exist natural skin excretion, but can be connected with a crime scene. Exemplary images from fingers contaminated different substances (arsenic, nickel, gunshot residues, amphetamine drugs, etc.) using three kinds bases (aluminum, stainless steel brass) are showed. results show potential technique analysis view...
Electron emission in the deuteron-deuteron reaction supporting existence of single-particle threshold resonance <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mmultiscripts><a:mi>He</a:mi><a:mprescripts/><a:none/><a:mn>4</a:mn></a:mmultiscripts></a:math> has been observed for first time. The measured electron energy spectrum and electron-proton branching ratio agree very well with assumed electron-positron pair creation decay <b:math...
A technique for measuring high-energy electrons using Si detectors of various thicknesses that are much smaller than the range examined is presented. The advantages method discussed on basis electron-positron pair creation recently studied in deuteron-deuteron fusion reactions at very low energies. Careful Geant 4 Monte Carlo simulations enabled to identify main spectral contributions emitted and positrons resulting from energy loss mechanisms scattering processes within target, detector...
Based on our experimental studies of the electron screening effect in 2H(d,p)3H reaction for five deuteron-implanted solid targets (C,Al,Zr,Pd,Ta), theoretical calculations have been performed within an improved dielectric function theory. The theory describes correctly observed target material dependence energies, underestimating, however, absolute values by about a factor 2. Applying effective energy approach, cross-sections, thick-target yields as well nuclear rates calculated down to...
AbstractAbstractTime-of-flight secondary ion mass spectrometry (TOF-SIMS) is applied for the characterization and detection of fingerprints. In this case possibility surface imaging in various ions appears to be very interesting useful. Experimental work was carried out using six types (stainless steel, copper, brass, aluminium foil, glass, paper) on which fingerprints were placed. 'Natural' polluted with Ni(NO3)2·6H2O, gunpowder residues As2O3. examined. The results suggest relating...
Abstract Photocopy and printer toners were analyzed using ICP‐TOF‐MS (inductively coupled plasma time‐of‐flight mass spectrometry) with laser ablation (LA). Isotopic analysis of black colored allows identification discrimination covering materials from different producers. The results 201 samples according to the following chemometric methods: cluster (CA) principal component (PCA). In addition, 23 tested. Chemometric manipulation elemental spectra obtained ‘Fingerprinting OptiMass 9500’...
The reaction cross-section has been measured for deuteron energies below 25 keV in a deuterized Zr target under improved ultra-high-vacuum conditions and controlled surface contamination. increase of enhancement factors towards lower is much weaker than that determined before can result not only from the electron screening effect but also suggested 0+ threshold resonance 4He. calculations performed within T-matrix approximation enable to estimate coherent contribution explain observed energy...
Silicon carbide has been considered a material for use in the construction of advanced high-temperature nuclear reactors. However, one most important design issues future reactors is development structural defects SiC under strong irradiation field at high temperatures. To understand how temperatures affect radiation damage, single crystals were irradiated room temperature and after being heated to 800 °C with carbon silicon ions energies ranging between 0.5 21 MeV. The number displaced...
Observation of the enhanced electron screening in metallic environments is fundamental importance for understanding strongly coupled astrophysical plasmas. Experimental energies determined by different groups many metals are much larger than theoretical predictions. However, a comparison between experimental and data rather ambiguous because contributions systematic errors experiments. One most important problems uncertainty resulting from oxidation target surface during measurements. Here,...