A5077643547- Nuclear physics research studies
- Advanced Chemical Physics Studies
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Astronomical and nuclear sciences
- Advanced NMR Techniques and Applications
- Rare-earth and actinide compounds
- X-ray Spectroscopy and Fluorescence Analysis
- Atomic and Subatomic Physics Research
- Neutrino Physics Research
- Fusion materials and technologies
- Radiation Detection and Scintillator Technologies
- Quantum Chromodynamics and Particle Interactions
- Magnetic confinement fusion research
- Chemical Reactions and Isotopes
- Particle physics theoretical and experimental studies
- Integrated Circuits and Semiconductor Failure Analysis
- Spectroscopy and Quantum Chemical Studies
- Inorganic Fluorides and Related Compounds
- Medical Imaging Techniques and Applications
- Laser-Matter Interactions and Applications
- Metal and Thin Film Mechanics
- Nuclear reactor physics and engineering
- Cold Atom Physics and Bose-Einstein Condensates
- Photorefractive and Nonlinear Optics
University of Cologne
2018-2025
University of Warsaw
2024
National Centre for Nuclear Research
2024
University of Basel
2004-2005
TRW Automotive (United States)
1988
Excited states in $^{193}\mathrm{Os}$ were populated using a $^{192}\mathrm{Os}({n}_{\text{th.}},\ensuremath{\gamma})^{193}\mathrm{Os}$ thermal neutron capture reaction, with neutrons provided by the high-flux reactor of Institut Laue-Langevin Grenoble, France. Lifetimes low-spin excited measured generalized centroid difference method. A total eight mean lifetimes low-lying determined for first time, and limits three further established. Additionally,...
Low-lying states in $^{206}\mathrm{Po}$ were investigated using the fast-timing technique with ${\mathrm{LaBr}}_{3}(\mathrm{Ce})$ and high-purity germanium detectors. The excited this nucleus populated via two consecutive electron capture decays from $^{206}\mathrm{Rn}$. parent isotope was produced $^{194}\mathrm{Pt}(^{16}\mathrm{O},4n)^{206}\mathrm{Rn}$ fusion-evaporation reaction at FN-Tandem facility Institute for Nuclear Physics, University of Cologne. previously known value lifetime...
Lifetimes of ${2}_{1}^{+}$ and ${4}_{1}^{+}$ states in $^{190,192,194,196}\mathrm{Hg}$ some negative parity band members were measured using the $\ensuremath{\gamma}\ensuremath{-}\ensuremath{\gamma}$ fast-timing technique with a high-purity germanium ${\mathrm{LaBr}}_{3}$(Ce) detector array. The excited populated via fusion-evaporation reactions Tandem Van de Graaff accelerator Institute Nuclear Physics Cologne, Germany. derived reduced transition probabilities...
Low-lying yrast states of $^{204}\mathrm{Po}$ and $^{206}\mathrm{Po}$ were investigated by the $\ensuremath{\gamma}--\ensuremath{\gamma}$ fast timing technique with ${\mathrm{LaBr}}_{3}$(Ce) detectors. Excited these nuclei populated in $^{197}\mathrm{Au}(^{11}\mathrm{B},4n)^{204}\mathrm{Po}$ $^{198}\mathrm{Pt}(^{12}\mathrm{C},4n)^{206}\mathrm{Po}$ fusion-evaporation reactions, respectively. The beams delivered FN-Tandem accelerator at University Cologne. lifetimes ${4}_{1}^{+}$ both...
Lifetimes have been measured for the low-lying yrast levels of $^{130,132}\mathrm{Te}$ using $\ensuremath{\gamma}\ensuremath{-}\ensuremath{\gamma}$ fast timing methods. The excited states were populated in ${\ensuremath{\beta}}^{\ensuremath{-}}$ and IT decay fission fragments, mass-separated by Lohengrin separator at Institut Laue-Langevin. Four ${\mathrm{LaBr}}_{3}$(Ce) detectors, placed focal plane spectrometer, used measurement. $\ensuremath{\mu}\mathrm{s}$ isomers coincidence an...
Lifetimes of yrast states in the rare-earth midshell isotopes $^{176,178,180}\mathrm{W}$ have been measured with fast-timing methods using Cologne iron-free Orange spectrometer and HORUS recoil distance Doppler shift method coincidence plunger setup. Different fusion evaporation reactions used to populated excited investigated nuclei. ${2}_{1}^{+}$, ${4}_{1}^{+}$, ${6}_{1}^{+}$, ${8}_{1}^{+}$ were all three tungsten addition lifetime ${10}_{1}^{+}$ state was $^{176}\mathrm{W}$. Quadrupole...
Excited states in the yrast and negative parity bands $^{92}\mathrm{Mo}$ were populated two different experiments using $^{90}\mathrm{Zr}(\ensuremath{\alpha},2n)^{92}\mathrm{Mo}$ $^{93}\mathrm{Nb}(p,2n)^{92}\mathrm{Mo}$ fusion-evaporation reactions at Cologne FN Tandem accelerator measured a hybrid setup of high purity germanium lanthanum bromide detectors. Lifetimes excited ${2}_{1}^{+}, {4}_{1}^{+}, {6}_{1}^{+}, {8}_{1}^{+}, {5}_{1}^{\ensuremath{-}}, {7}_{1}^{\ensuremath{-}}$,...
Lifetimes of the $15/{2}_{1}^{\ensuremath{-}}$ and 13/${2}_{1}^{\ensuremath{-}}$ levels in $^{129}\mathrm{Sn}$ have been measured using $\ensuremath{\gamma}\text{\ensuremath{-}}\ensuremath{\gamma}$ fast timing technique which come out to be 10(3) ps 6(4) ps, respectively. The excited states were populated through internal transition decay higher lying $\textmu{}\mathrm{s}$ isomers produced as fission fragments mass separated by Lohengrin separator at Institut Laue-Langevin. generalized...
Lifetimes of low-spin excited states in $^{102}\mathrm{Mo}$ populated a $^{100}\mathrm{Mo}(^{18}\mathrm{O},\phantom{\rule{0.16em}{0ex}}^{16}\mathrm{O})^{102}\mathrm{Mo}$ two-neutron transfer reaction were measured using the recoil-distance Doppler-shift technique at Cologne FN Tandem accelerator. ${2}_{1}^{+}$, ${4}_{1}^{+}$, ${6}_{1}^{+}$, ${0}_{2}^{+}$, ${2}_{\ensuremath{\gamma}}^{+}$, ${3}_{\ensuremath{\gamma}}^{+}$ and one upper limit for lifetime ${4}_{\ensuremath{\gamma}}^{+}$ state...
The $A\ensuremath{\approx}100$ mass region is of special interest due to a rapid shape transition, observed by going from neutron number 58 60, especially pronounced in the Zr isotopes, where $^{98}\mathrm{Zr}$ weakly and $^{100}\mathrm{Zr}$ strongly deformed. To further examine this intricate phenomenon, work lifetimes low-lying excited states nuclei $^{99}\mathrm{Zr}$ $^{99}\mathrm{Nb}$ were determined using fast-timing techniques an experimental setup consisting four...
The lifetime of the $11/{2}_{1}^{+}$ state in $^{131}\mathrm{Sb}$ nucleus was measured at LOHENGRIN spectrometer Institut Laue-Langevin via neutron-induced fission $^{235}\mathrm{U}$ using $\ensuremath{\gamma}$-ray fast-timing techniques. obtained value ${T}_{1/2}=3\phantom{\rule{0.16em}{0ex}}$(2) ps, edge sensitivity experimental method, is first result for half-life neutron-rich Sb isotopes. corresponding quadrupole reduced transition probability to ground...
Lifetimes of the low-lying yrast states ${2}^{+}$, ${4}^{+}$, and ${6}^{+}$ unstable nucleus $^{182}\mathrm{Os}$ were measured using digital fast-timing techniques. The lifetimes ${4}^{+}$ determined for first time. remeasured value lifetime ${2}_{1}^{+}$ state was taken into account to evaluate discrepancy between two inconsistent literature values. extracted $B(E2)$ values are presented discussed in terms collective signatures transitional phenomena....
The lifetimes of the first excited ${2}^{+}$ and ${4}^{+}$ states in $^{206}\mathrm{Po}$ were measured using recoil-distance Doppler-shift method. experimental results compared to large-scale shell-model calculations that describe deduced transition probabilities well. Those extended neighboring $^{204,208}\mathrm{Po}$ isotopes giving a good overall description yrast states. However, underpredict energies ${6}_{1}^{+}$ ${8}_{1}^{+}$ states, which suggests further improvement proton-neutron...
Abstract The neutron-rich 131 Sb nucleus was studied at Institut Laue-Langevin, with the LOHENGRIN spectrometer, via neutron-induced fission of 235 U and lifetime measurements using LaBr 3 (Ce) detectors. lifetimes <?CDATA $11/{2}_{1}^{+}$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"> <mml:mrow> <mml:mn>11</mml:mn> <mml:mo>/</mml:mo> <mml:msubsup> <mml:mn>2</mml:mn> <mml:mn>1</mml:mn> <mml:mo>+</mml:mo> </mml:msubsup> </mml:mrow> </mml:math>...
Lifetime measurements of the (3−), (4−), and (6−) intraband states in neutron-rich, odd-odd Rb96 nucleus were performed at LOHENGRIN spectrometer Institut Laue-Langevin, using thermal-neutron-induced fission U235 fast-timing techniques with LaBr3:Ce scintillator detectors. The nanosecond isomeric nature (3−) bandhead was established as well β2=0.39(3) deformation parameter band, pointing to a robust Rb96. Moreover, hindered B(E2) value 3.9−13+19×10−2 W.u. found for γ decay deformed (4−)...