NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = M.Versteegen Found 8 matches. 2022GO01 Phys.Rev. C 105, 014608 (2022) F.Gobet, A.Ya.Dzyublik, G.Gosselin, V.Meot, M.Versteegen Expected yields of 181Ta(e, e')181Ta* in the multi-keV range with a plasma-cathode electron beam NUCLEAR REACTIONS 181Ta(e, e'), E=10-30 keV electron beam from a biased laser plasma; calculated inelastic excitation σ(E) using DWBA method in screened and unscreened Coulomb nuclear field, and compared with other theoretical calculations, energy distributions of the electrons impinging the anode, number of γ-ray photons and conversion electrons exiting the anode as a function of the tantalum anode thickness for various target voltages at various target voltages, nuclear excitation yields and DWBA σ(E) through the detection of conversion electrons for the 6.2-keV transition in 181Ta, and with the inclusion of effects of electron-beam heating and the plasma deposition on the tantalum target, number of nuclear excitations in tantalum anode as a function of the thickness of the aluminum layer. 181Ta; calculated internal-conversion coefficients and probability of electron emission for E1 transition using the code CATAR for the 6.2-keV transition in 181Ta.
doi: 10.1103/PhysRevC.105.014608
2022RU03 Phys.Lett. B 830, 137144 (2022) D.Rudolph, B.Blank, J.Giovinazzo, T.Roger, H.Alvarez-Pol, A.Arokia Raj, P.Ascher, M.Caamano-Fresco, L.Caceres, D.M.Cox, B.Fernandez-Dominguez, J.Lois-Fuentes, M.Gerbaux, S.Grevy, G.F.Grinyer, O.Kamalou, B.Mauss, A.Mentana, J.Pancin, J.Pibernat, J.Piot, O.Sorlin, C.Stodel, J.-C.Thomas, M.Versteegen Mirror symmetry at mass A=54: E4 effective charges near doubly magic 56Ni RADIOACTIVITY 54Ni(IT), (p) [from 9Be(58Ni, X)54Ni, E=75 MeV/nucleon]; measured decay products, Ep, Ip; deduced proton energies, B(E2), B(E4), partial level scheme, effective charges for E4 transitions, T1/2. Comparison with shell model calculations. The active target and time projection chamber (ACTAR TPC) in an experiment conducted at the Grand Accelerateur National d'Ions Lourds (GANIL).
doi: 10.1016/j.physletb.2022.137144
2021GI18 Nat. Commun. 12, 1 (2021) J.Giovinazzo, T.Roger, B.Blank, D.Rudolph, B.A.Brown, H.Alvarez-Pol, A.Arokia Raj, P.Ascher, M.Caamano-Fresco, L.Caceres, D.M.Cox, B.Fernandez-Dominguez, J.Lois-Fuentes, M.Gerbaux, S.Grevy, G.F.Grinyer, O.Kamalou, B.Mauss, A.Mentana, J.Pancin, J.Pibernat, J.Piot, O.Sorlin, C.Stodel, J.-C.Thomas, M.Versteegen 4D-imaging of drip-line radioactivity by detecting proton emission from 54mNi pictured with ACTAR TPC RADIOACTIVITY 54Ni(IT), (p) [from 9Be(58Ni, X)54mN, E=75 MeV/nucleon]; measured decay products, Ep, Ip; deduced proton-emission branching ratios from an isomeric state, spectroscopic factors, decay widths, T1/2. Comparison with shell model calculations using GXPF1A and KB3G interactions. The ACTAR TPC device.
doi: 10.1038/s41467-021-24920-0
2020AR04 Phys.Rev. C 101, 055501 (2020) V.Araujo-Escalona, D.Atanasov, X.Flechard, P.Alfaurt, P.Ascher, B.Blank, L.Daudin, M.Gerbaux, J.Giovinazzo, S.Grevy, T.Kurtukian-Nieto, E.Lienard, G.Quemener, N.Severijns, S.Vanlangendonck, M.Versteegen, D.Zakoucky Simultaneous measurements of the β-neutrino angular correlation in 32Ar pure Fermi and pure Gamow-Teller transitions using β-proton coincidences RADIOACTIVITY 32Ar(β+), (β+p)[from Ca(p, X), E=1.4 GeV]; measured Eβ+, Iβ+, Ep, Ip, pβ+-coin using plastic scintillator for β+ detection and silicon detectors for proton detection at ISOLDE-CERN facility; deduced β-neutrino angular correlation coefficients for Fermi and Gamow-Teller transitions. Comparison with theoretical predictions of Standard model. Relevance to constraints on exotic weak interactions, and future WISArD (weak-interaction studies with 32Ar decay) research at CERN.
doi: 10.1103/PhysRevC.101.055501
2017DE22 Phys.Rev. C 96, 024604 (2017) D.Denis-Petit, G.Gosselin, F.Hannachi, M.Tarisien, T.Bonnet, M.Comet, F.Gobet, M.Versteegen, P.Morel, V.Meot, I.Matea Calculation of the rate of nuclear excitation by electron transition in an 84mRb plasma under the hypothesis of local thermodynamic equilibrium using a multiconfiguration Dirac-Fock approach NUCLEAR REACTIONS 84mRb(γ, γ'), E=3.5 keV; calculated rate of nuclear excitation by electron transition (NEET) for the 6- to 5- transition in 84Rb as a function of the plasma temperature for the M1 and E2 components, total excitation rate, charge state distribution of an 84Rb plasma at 400 eV, M1 NEET rate as a function of the energy uncertainty and the charge state of 84Rb. Relativistic average atom model (RAAM), and multiconfiguration Dirac Fock (MCDF) atomic calculations using the ISOMEX computer code. 76Ge(11B, 3n)84Rb, E=40 MeV; measured Eγ, γγ-coin using the ORGAM Ge detector array at Orsay Tandem accelerator facility, precise energy of the 219-keV γ ray; deduced precise energy of 3.5-keV transition between the 466.6, 5- and 463.6, 6- levels. RADIOACTIVITY 84mRb(IT)[from 85Rb(γ, n), E=bremsstrahlung photons from the ELSA electron beam facility of the CEA/DAM/DIF]; measured Eγ, Iγ, γγ-coin, precise energies of 215.6-, 248.0-, and 463.6-keV γ rays.
doi: 10.1103/PhysRevC.96.024604
2016VE06 Phys.Rev. C 94, 044325 (2016) M.Versteegen, D.Denis-Petit, V.Meot, T.Bonnet, M.Comet, F.Gobet, F.Hannachi, M.Tarisien, P.Morel, M.Martini, S.Peru Low-energy modification of the γ strength function of the odd-even nucleus 115In NUCLEAR REACTIONS In, Cu, Au(γ, γ'), (γ, n), E=4.5-18 MeV bremsstrahlung beam from ELSA facility; measured Eγ, Iγ from the decay of 115mIn, 112In, 112mIn, 112Cd, 113mIn, 114In, 114mIn, 62Cu, 196Au radioisotopes formed by (γ, γ'), and (n, n') and (n, γ) reactions from photoneutrons produced in the main reaction; deduced yields of (γ, n) reactions, energy distributions of photoneutrons produced in (γ, n) reactions in natural In sample. 115mIn; deduced yield, σ(E) in (γ, γ') and compared to theoretical calculations using TALYS code with generalized Lorentzian (GLO) for E1 and standard Lorentzian form (SLO) of the Brink-Axel hypothesis for M1 photon strength functions (PSFs). QRPA calculations using the Gogny D1S force. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.94.044325
2015CO16 Phys.Rev. C 92, 054609 (2015) M.Comet, G.Gosselin, V.Meot, P.Morel, J.-C.Pain, D.Denis-Petit, F.Gobet, F.Hannachi, M.Tarisien, M.Versteegen Nuclear excitation by electron transition rate confidence interval in a 201Hg local thermodynamic equilibrium plasma NUCLEAR REACTIONS 201Hg(γ, γ'), (e, e')201mHg; calculated average charge state as function of plasma temperature using relativistic average atom model (RAAM), nuclear excitation by electron transition (NEET) rates for excitation of 1.56-keV isomer in 201Hg as function of temperature and average charge state using average atom Gaussian (AAG) model and ADAM, E2 radiative spectrum with ADAM and CNFM approaches, and detailed configuration accounting (DCA).
doi: 10.1103/PhysRevC.92.054609
2014PL01 Phys.Rev. C 89, 021302 (2014) C.Plaisir, L.Gaudefroy, V.Meot, A.Blanc, J.M.Daugas, O.Roig, N.Arnal, T.Bonnet, F.Gobet, F.Hannachi, M.Tarisien, M.Versteegen, T.Roger, M.Rejmund, A.Navin, C.Schmitt, G.Fremont, J.Goupil, J.Pancin, C.Spitaels, M.Zielinska In-flight fast-timing measurements in 152Sm NUCLEAR REACTIONS 152Sm(136Xe, 152Sm'), E=5.09 MeV/nucleon; measured time-of-flight of recoiling nuclei using VAMOS spectrometer, Eγ, Iγ, γγ-coin level half-lives by in-flight fast-timing (IFFT) technique using LaBr3 detectors at GANIL facility. Coulomb excitation. 152Sm; deduced levels, J, π, transition quadrupole moments from level half-lives of ground-state band members. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.89.021302
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