NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = J.Kroll Found 13 matches. 2022KN01 Phys.Rev. C 106, 034607 (2022) I.Knapova, S.Valenta, B.Baramsai, T.A.Bredeweg, A.Couture, C.Fry, M.Jandel, J.Kroll, M.Krticka, G.E.Mitchell, J.M.O'Donnell, C.J.Prokop, G.Rusev, J.L.Ullmann Spin assignment and statistical properties of neutron resonances from 161, 163Dy(n, γ) and 167Er(n, γ) measured at the DANCE facility NUCLEAR REACTIONS 161,163Dy, 167Er(n, γ), E=2-345 eV; measured Eγ, Iγ, γγ-coin, γ-sum energy; deduced J, resonances parameters, average resonance spacings. Checked the ratio of spacings for the two spins formed in s-wave resonance capture against predictions of different nuclear level density models. Comparison to other experimental data, Mughabghab "Atlas of Neutron Resonances" evaluation and TALYS calculations. Highly segmented γ-ray calorimeter Detector for Advanced Neutron Capture Experiments (DANCE) consisting of 160 BaF2 crystals the Los Alamos Neutron Science Center.
doi: 10.1103/PhysRevC.106.034607
2017MA15 Phys.Lett. B 768, 1 (2017) C.Massimi, S.Altstadt, J.Andrzejewski, L.Audouin, M.Barbagallo, V.Becares, F.Becvar, F.Belloni, E.Berthoumieux, J.Billowes, S.Bisterzo, D.Bosnar, M.Brugger, M.Calviani, F.Calvino, D.Cano-Ott, C.Carrapico, D.M.Castelluccio, F.Cerutti, E.Chiaveri, L.Cosentino, M.Chin, G.Clai, N.Colonna, G.Cortes, M.A.Cortes-Giraldo, S.Cristallo, M.Diakaki, C.Domingo-Pardo, I.Duran, R.Dressler, C.Eleftheriadis, A.Ferrari, P.Finocchiaro, K.Fraval, S.Ganesan, A.R.Garcia, G.Giubrone, I.F.Goncalves, E.Gonzalez-Romero, E.Griesmayer, C.Guerrero, F.Gunsing, A.Hernandez-Prieto, D.G.Jenkins, E.Jericha, Y.Kadi, F.Kappeler, D.Karadimos, N.Kivel, P.Koehler, M.Kokkoris, S.Kopecky, M.Krticka, J.Kroll, C.Lampoudis, C.Langer, E.Leal-Cidoncha, C.Lederer, H.Leeb, L.S.Leong, S.Lo Meo, R.Losito, A.Mallick, A.Manousos, J.Marganiec, T.Martinez, P.F.Mastinu, M.Mastromarco, E.Mendoza, A.Mengoni, P.M.Milazzo, F.Mingrone, M.Mirea, W.Mondelaers, A.Musumarra, C.Paradela, A.Pavlik, J.Perkowski, M.Pignatari, L.Piersanti, A.Plompen, J.Praena, J.M.Quesada, T.Rauscher, R.Reifarth, A.Riego, M.S.Robles, C.Rubbia, M.Sabate-Gilarte, R.Sarmento, A.Saxena, P.Schillebeeckx, S.Schmidt, D.Schumann, G.Tagliente, J.L.Tain, D.Tarrio, L.Tassan-Got, A.Tsinganis, S.Valenta, G.Vannini, I.Van Rijs, V.Variale, P.Vaz, A.Ventura, M.J.Vermeulen, V.Vlachoudis, R.Vlastou, A.Wallner, T.Ware, M.Weigand, C.Weiss, R.Wynants, T.Wright, P.Zugec Neutron spectroscopy of 26Mg states: Constraining the stellar neutron source 22Ne(α, n)25Mg NUCLEAR REACTIONS 25Mg(n, γ), (n, X), E<300 KeV; measured reaction products, En, In, Eγ, Iγ; deduced yields, σ, resonance parameters and corresponding excitation energies of the 26Mg compound nucleus, Maxwellian-averaged cross sections, reaction rates for inverse reactions. R-matrix analysis of the experimental data.
doi: 10.1016/j.physletb.2017.02.025
2017VA25 Phys.Rev. C 96, 054315 (2017) S.Valenta, B.Baramsai, T.A.Bredeweg, A.Couture, A.Chyzh, M.Jandel, J.Kroll, M.Krticka, G.E.Mitchell, J.M.O'Donnell, G.Rusev, J.L.Ullmann, C.L.Walker Examination of photon strength functions for 162, 164Dy from radiative capture of resonance neutrons NUCLEAR REACTIONS 161,163Dy(n, γ), E=10-40 s-wave neutrons; measured time-of-flight spectrum for neutrons, Eγ, Iγ using segmented γ-ray calorimeter Detector for Advanced Neutron Capture Experiments (DANCE), an array of BaF2 scintillators at Los Alamos Neutron Science Center (LANSCE) spallation neutron source; deduced neutron resonances, cluster multiplicities, multistep cascade (MSC) spectra, E1 and M1 photon strength functions (PSFs) as function of γ-ray energy, total radiation widths, scissors mode, nuclear level density. Comparison with other experimental data, and with statistical model calculations.
doi: 10.1103/PhysRevC.96.054315
2015VA20 Phys.Rev. C 92, 064321 (2015) S.Valenta, F.Becvar, J.Kroll, M.Krticka, I.Tomandl Two-step γ cascades following thermal neutron capture in 155, 157Gd NUCLEAR REACTIONS 155,157Gd(n, γ), E=thermal; measured γγ-coin using a pair of HPGe detectors at LVR-15, Rez research reactor; deduced two-step cascades (TSCs). 156,158Gd; deduced levels, J, π, photon strength functions as function of Eγ, comparison between experimental and simulated TSC spectra using DICEBOX analysis. Evidence for the scissors-mode (SM) enhancement of M1 transitions.
doi: 10.1103/PhysRevC.92.064321
2015WA18 Phys.Rev. C 92, 014324 (2015) C.L.Walker, M.Krticka, B.Baramsai, F.Becvar, T.A.Bredeweg, A.Chyzh, R.C.Haight, M.Jandel, J.Kroll, G.E.Mitchell, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, S.Valenta, J.B.Wilhelmy Measurement of the 97Mo(n, γ) reaction with the DANCE γ calorimeter array NUCLEAR REACTIONS 97Mo(n, γ), E<1.7 eV. Measured Eγ, Iγ, multistep gamma cascades (MSCs) with the DANCE array of 160 BaF2 detectors at the LANSCE-LANL facility. 98Mo; deduced neutron resonances, J, π, neutron widths, photon-strength functions (PSFs), simulated total radiation width of resonances for all considered model combinations. Analysis using DICEBOX statistical computer code. 93,95,99Mo, 94Nb, 100Ru; deduced photon-strength functions (PSFs) using averaged s-wave resonance spacings D0 from literature. Comparison with statistical model calculations.
doi: 10.1103/PhysRevC.92.014324
2014KR08 Nucl.Data Sheets 119, 158 (2014) J.Kroll, U.Agvaanluvsan, B.Baramsai, J.A.Becker, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, G.E.Mitchell, J.M.O'Donnell, W.Parker, R.S.Rundberg, J.L.Ullmann, S.Valenta, D.J.Vieira, C.L.Walker, J.B.Wilhelmy, J.M.Wouters, C.Y.Wu Systematics of Scissors Mode in Gd Nuclei from Experiments with the DANCE Detector NUCLEAR REACTIONS 152,154,155,156,157,158Gd(n, γ), E=subthermal-1 MeV; measured Eγ, Iγ using ToF LANSCE/DANCE array (BaF2); calculated γ emission, γ cascades using MSC code DICEBOX with fitted parameters and all models of RIPL-3; deduced M1 scissors mode vibrations; calculated scissors mode B(M1) vs deformation for (n, γ), (γ, γ') and 3He-induced reactions data.
doi: 10.1016/j.nds.2014.08.044
2014VA05 Nucl.Data Sheets 118, 243 (2014) S.Valenta, F.Becvar, J.Kroll, M.Krticka Recent Results on Studying Photon Strength Functions in Rare-earth Nuclei NUCLEAR STRUCTURE Gd, 160Gd; calculated γ-ray strength function for E1, M1 transitions using different Lorentzians. Compared with RIPL and ARC data.
doi: 10.1016/j.nds.2014.04.048
2013BA15 Phys.Rev. C 87, 044609 (2013) B.Baramsai, J.Kroll, G.E.Mitchell, U.Agvaanluvsan, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, C.L.Walker Photon strength functions of 156Gd from radiative capture of resonance neutrons NUCLEAR REACTIONS 155Gd(n, γ), E=7.8, 21.0 eV; measured Eγ, Iγ, sum energy spectra, cluster multiplicity of γ cascades using DANCE γ-ray calorimeter at LANSCE facility; deduced spectra of multistep γ cascades (MSCs) and those of gated MSCs, E1 and M1 photon strength functions, scissors mode. DICEBOX algorithm. Validity of various photon strength functions (PSF), and nuclear level density (NLD) models Comparison with previous experimental studies, and with theoretical calculations.
doi: 10.1103/PhysRevC.87.044609
2013KR07 Phys.Scr. T154, 014009 (2013) J.Kroll, F.Becvar, M.Krticka, S.Valenta, B.Baramsai, G.E.Mitchell, C.L.Walker, T.A.Bredeweg, A.Couture, R.C.Haight, M.Jandel, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters, J.A.Becker, A.Chyzh, D.Dashdorj, W.Parker, C.Y.Wu Scissors mode of Gd nuclei measured, with the DANCE detector NUCLEAR REACTIONS 152,154,155,156,157,158Gd(n, γ), E<1 MeV; measured reaction products, Eγ, Iγ; deduced photon strength, summed scissors-mode strength B(M1). Comparison with available data.
doi: 10.1088/0031-8949/2013/T154/014009
2013KR11 Phys.Rev. C 88, 034317 (2013) J.Kroll, B.Baramsai, G.E.Mitchell, U.Agvaanluvsan, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, J.M.O'Donnell, W.Parker, R.S.Rundberg, J.L.Ullmann, S.Valenta, D.J.Vieira, C.Walker, C.Y.Wu Strength of the scissors mode in odd-mass Gd isotopes from the radiative capture of resonance neutrons NUCLEAR REACTIONS 152,154,156,158Gd(n, γ), E<1 MeV white neutron spectrum; measured multistep cascade (MSC) γ spectra for different multiplicities and several resolved s-wave resonances using DANCE array at LANSCE, LANL facility; deduced E1 and M1 photon strength functions, level density. GEANT4-based simulations. Comparison with several model calculations of photon strength functions (PSF) and nuclear level densities (NLD) for deformed nuclei, and with experimental data from other reactions. Discussed scissors mode in odd-A Gd isotopes from summed reduced M1 strengths. Evidence of odd-even effect in strength of scissors mode.
doi: 10.1103/PhysRevC.88.034317
2011CH31 Phys.Rev. C 84, 014306 (2011) A.Chyzh, B.Baramsai, J.A.Becker, F.Becvar, T.A.Bredeweg, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, J.Kroll, M.Krticka, G.E.Mitchell, J.M.O'Donnell, W.Parker, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, C.L.Walker, J.B.Wilhelmy, J.M.Wouters, C.Y.Wu Measurement of the 157Gd(n, γ) reaction with the DANCE γ calorimeter array NUCLEAR REACTIONS 157Gd(n, γ), E=<300 eV; measured Eγ, Iγ using DANCE γ calorimeter. 158Gd; deduced E1, M1 and E1 photon strength distributions, resonances, multiplicity, spin distribution, multistep cascade (MSC) spectra. Statistical model calculations using DICEBOX code. Scissors mode.
doi: 10.1103/PhysRevC.84.014306
2011KR04 Int.J.Mod.Phys. E20, 526 (2011) J.Kroll, F.Becvar, M.Krticka, I.Tomandl Photon strength functions of 160Tb from the two-step gamma cascade measurement NUCLEAR REACTIONS 159Tb(n, γ), E=thermal; measured Eγ, Iγ, two-step γ cascades; deduced M1 scissor vibrational mode role in the γ-cascade decay, photon strength functions, level densities.
doi: 10.1142/S0218301311017958
1994KR15 Phys.Lett. 334B, 287 (1994) Electric Quadrupole Moments of the Decuplet and the Strangeness Content of the Proton
doi: 10.1016/0370-2693(94)90689-0
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