A5089442933- Nuclear Physics and Applications
- Nuclear physics research studies
- Nuclear reactor physics and engineering
- Particle physics theoretical and experimental studies
- Radiation Detection and Scintillator Technologies
- Quantum Chromodynamics and Particle Interactions
- Atomic and Molecular Physics
- Superconducting Materials and Applications
- Nuclear Materials and Properties
- Neutrino Physics Research
- Astronomical and nuclear sciences
- Astronomy and Astrophysical Research
- Atomic and Subatomic Physics Research
- Gamma-ray bursts and supernovae
- Radiation Therapy and Dosimetry
- X-ray Spectroscopy and Fluorescence Analysis
- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Stellar, planetary, and galactic studies
- Advanced NMR Techniques and Applications
- Electron and X-Ray Spectroscopy Techniques
- Advanced Chemical Physics Studies
- Galaxies: Formation, Evolution, Phenomena
- High-Energy Particle Collisions Research
- Astronomical Observations and Instrumentation
Helmholtz-Zentrum Dresden-Rossendorf
2014-2024
Michigan State University
2017-2024
Joint Institute for Nuclear Astrophysics
2017-2024
National Superconducting Cyclotron Laboratory
2017-2023
TU Dresden
2011-2020
Forschungsinstitut für Anorganische Werkstoffe -Glas/Keramik
2020
Laboratoire de Physique des deux infinis Bordeaux
2010-2016
Institut National de Physique Nucléaire et de Physique des Particules
2010-2016
Centre National de la Recherche Scientifique
2010-2016
Federal Office for Radiation Protection
2010
Abstract The joint evaluated fission and fusion nuclear data library 3.3 is described. New evaluations for neutron-induced interactions with the major actinides $$^{235}\hbox {U}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msup><mml:mrow /><mml:mn>235</mml:mn></mml:msup><mml:mtext>U</mml:mtext></mml:mrow></mml:math> , $$^{238}\hbox /><mml:mn>238</mml:mn></mml:msup><mml:mtext>U</mml:mtext></mml:mrow></mml:math> $$^{239}\hbox {Pu}$$...
The electromagnetic dipole strength below the neutron-separation energy has been studied for xenon isotopes with mass numbers A = 124, 128, 132, and 134 in nuclear resonance fluorescence experiments using ELBE bremsstrahlung facility at Helmholtz-Zentrum Dresden-Rossendorf HIgS Triangle Universities Nuclear Laboratory Durham. systematic study gained new information about influence of neutron excess as well deformation on region pygmy resonance. results are compared those obtained chain...
Journal Article Occurrence of natural radioactivity in public water supplies Germany: 238U, 234U, 235U, 228Ra, 226Ra, 222Rn, 210Pb, 210Po and gross α activity concentrations Get access M. Beyermann, Beyermann * Federal Office for Radiation Protection (BfS), Willy-Brandt-Straße 5, D-38336 Salzgitter, Germany *Corresponding authors: tbuenger@bfs.de, mbeyermann@bfs.de Search other works by this author on: Oxford Academic PubMed Google Scholar T. Bünger, Bünger K. Schmidt, Schmidt D. Obrikat...
The $^{12}\mathrm{C}(p,\ensuremath{\gamma})^{13}\mathrm{N}$ reaction is the onset process of both CNO and hot cycles that drive massive star, red asymptotic giant branch novae nucleosynthesis. rate affects final abundances stable $^{12,13}\mathrm{C}$ nuclides with ramifications for meteoritic carbon isotopic $s$-process neutron source strength. Here, an underground measurement cross section reported. present data, obtained at Felsenkeller shallow-underground laboratory in Dresden (Germany),...
We present measurements on inelastic electron-proton scattering in the region of $\ensuremath{\Delta}(1236)$ resonance for two values ${q}^{2}$. A fit to single-arm and ${\ensuremath{\pi}}^{0}$-electroproduction cross sections gave a separation nonresonant background contribution. The transition form factor ${G}_{M}^{*}({q}^{2})$ was determined shown have different dependence ${q}^{2}$ than magnetic nucleon factor, confirming earlier measurements. angular section gives some indications that...
The $^{22}\mathrm{Ne}(p,\ensuremath{\gamma})^{23}\mathrm{Na}$ reaction is included in the neon-sodium cycle of hydrogen burning. A number narrow resonances Gamow window dominate thermonuclear rate. Several resonance strengths are only poorly known. As a result, rate most uncertain cycle. Here, new experimental study at 436, 479, 639, 661, and 1279 keV proton beam energy reported. data have been obtained using tantalum target implanted with $^{22}\mathrm{Ne}$....
The photoabsorption cross section of $^{181}\mathrm{Ta}$ up to the neutron-separation energy is deduced using bremsstrahlung produced with an electron beam 9.6 MeV energy. analysis measured $\ensuremath{\gamma}$-ray spectra includes quasicontinuum levels at high Simulations cascades are performed estimate intensities inelastic transitions and branching ratios ground-state transitions. resulting shows enhanced dipole strength in range from 5 8 MeV, which may be related a pygmy resonance....
The $^{14}\textrm{N(p,}\gamma\textrm{)}^{15}\textrm{O}$ reaction is the slowest of carbon-nitrogen cycle hydrogen burning and thus determines its rate. precise knowledge rate required to correctly model in asymptotic giant branch stars. In addition, it a necessary ingredient for possible solution solar abundance problem by using $^{13}$N $^{15}$O neutrino fluxes as probes carbon nitrogen abundances core. After downward revision cross section due much lower contribution one particular...
Nuclei around the $N=40$ ``island of inversion'' exhibit interesting structure features that have been focus several experimental and theoretical studies. The present work presents first complete study $\ensuremath{\beta}$-decay feeding intensity distribution Gamow-Teller for $\ensuremath{\beta}$ decay $^{64}\mathrm{Mn}$ to $^{64}\mathrm{Fe}$ up $\ensuremath{\approx}10$ MeV. function was extracted from total absorption spectroscopy measurements made at National Superconducting Cyclotron...
The dipole strength distribution of $^{74}\mathrm{Ge}$ was studied in photon-scattering experiments using bremsstrahlung produced with electron beams energies 7.0 and 12.1 MeV at the linear accelerator ELBE. We identified 94 levels spin $J$ = 1 up to an excitation energy 8.9 analyzed quasicontinuum states. Simulations statistical $\ensuremath{\gamma}$-ray cascades were performed estimate intensities inelastic transitions correct ground-state for their branching ratios. photoabsorption cross...
Abstract The data of 289 nearby galaxies have been compiled. inclusion a galaxy into the catalogue depends on its redshift as in Kraan‐Korteweg and Tammann (1979) ( v LG = 500 kms −1 ) or fact that objects are known to be certain probable members groups. sample form Local Group with 51 und several additional One third (96 objects) does not seem belong any group. main emphasis is get distance‐limited galaxies, especially dwarf objects. It intended discuss properties following part investigation.
The 40Ca(alpha,gamma)44Ti reaction is believed to be the main production channel for radioactive nuclide 44Ti in core-collapse supernovae. Radiation from decaying has been observed so far two supernova remnants, and a precise knowledge of rate may help improve models. astrophysical determined by number narrow resonances. Here, resonance triplet at E_alpha = 4497, 4510, 4523 keV studied both activation, using an underground laboratory gamma counting, in-beam spectrometry. target properties...
The ^{23}Al(p,γ)^{24}Si reaction is among the most important reactions driving energy generation in type-I x-ray bursts. However, present reaction-rate uncertainty limits constraints on neutron star properties that can be achieved with burst model-observation comparisons. Here, we a novel technique for constraining this by combining GRETINA array detector LENDA coupled to S800 spectrograph at National Superconducting Cyclotron Laboratory. ^{23}Al(d,n) was used populate astrophysically states...