NSR Query Results


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NSR database version of April 11, 2024.

Search: Author = I.Companis

Found 11 matches.

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2018MA12      Phys.Scr. 93, 039701 (2018)

G.Maquart, A.Astier, C.Ducoin, D.Guinet, O.Stezowski, L.Augey, L.Chaix, I.Companis, J.Dudouet, G.Lehaut, C.Mancuso, N.Redon, A.Vancraeyenest

Retraction: Backbending in the 22390Th nucleus: presentation of the consistency of two different experiments

NUCLEAR REACTIONS 208Pb(18O, 3n)223Th, E=85 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, yrast bands, sharp backbending occuring at the highest spins. Please see 2017MA12 and 2017MA24.

doi: 10.1088/1402-4896/aaa84f
Citations: PlumX Metrics


2017MA12      Phys.Rev. C 95, 034304 (2017); Erratum Phys.Rev. C 98, 019902 (2018)

G.Maquart, L.Augey, L.Chaix, I.Companis, C.Ducoin, J.Dudouet, D.Guinet, G.Lehaut, C.Mancuso, N.Redon, O.Stezowski, A.Vancraeyenest, A.Astier, F.Azaiez, S.Courtin, D.Curien, I.Deloncle, O.Dorvaux, G.Duchene, B.Gall, T.Grahn, P.Greenlees, A.Herzan, K.Hauschild, U.Jakobsson, P.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, A.Lopez-Martens, P.Nieminen, P.Petkov, P.Peura, M.-G.Porquet, P.Rahkila, S.Rinta-Antila, M.Rousseau, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, S.Stolze, J.Uusitalo

Backbending in the pear-shaped 22390Th nucleus: Evidence of a high-spin octupole to quadrupole shape transition in the actinides

NUCLEAR REACTIONS 208Pb(18O, 3n), E=85 MeV; measured Eγ, Iγ, γγ-coin, angular distribution ADO ratios using EUROBALL IV array at IReS-Strasbourg Vivitron facility. 223Th; deduced high-spin levels, J, π, multipolarity, alternating-parity reflection-symmetric bands classified in terms of simplex quantum numbers, backbending, alignments, high-spin octupole to quadrupole shape transition. Systematics of splitting between states with opposite parity within the same rotational band in 221,223,225Th.

doi: 10.1103/PhysRevC.95.034304
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


2017MA24      Phys.Scr. 92, 064004 (2017) see keynumber 2018MA12

G.Maquart, A.Astier, C.Ducoin, D.Guinet, O.Stezowski, L.Augey, L.Chaix, I.Companis, J.Dudouet, G.Lehaut, C.Mancuso, N.Redon, A.Vancraeyenest

Backbending in the 22390Th nucleus: presentation of the consistency of two different experiments

NUCLEAR REACTIONS 208Pb(18O, 3n), E=85 MeV; measured reaction products, Eγ, Iγ, γ-γ-γ-coin.; deduced energy levels, J, π, kinematic moment of inertia for both positive and negative parity states.

doi: 10.1088/1402-4896/aa6e8b
Citations: PlumX Metrics


2014DU11      Nucl.Data Sheets 119, 233 (2014)

Q.Ducasse, B.Jurado, M.Aiche, L.Mathieu, T.Tornyi, A.Gorgen, J.N.Wilson, G.Barreau, I.Companis, S.Czajkowski, F.Giacoppo, F.Gunsing, M.Guttormsen, A.C.Larsen, M.Lebois, J.Matarranz, T.Renstrom, S.Rose, S.Siem, I.Tsekhanovich, G.M.Tveten, T.W.Hagen, M.Wiedeking, O.Serot, G.Boutoux, P.Chau, V.Meot, O.Roig

Neutron-induced Cross Sections of Actinides via the Surrogate-reaction Method

NUCLEAR REACTIONS 238U(d, p), E=15 MeV;238U(3He, t), (3He, α), E=24 MeV; measured ejectiles, fission fragments, coincidences using SiRi detector and PPAC fission detectors, Eγ, Iγ using NaI CACTUS detectors. 238U(n, F), E*=5.55-7.25 MeV; deduced fission probability. 238U(n, γ), E*=4.65-5.9 MeV; deduced γ-decay probability using surrogate method. 238U(n, F), E*=4.8-7.25 MeV; calculated fission probability using TALYS. Preliminary. Fission probability compared with results of Cramer and Britt. Further analysis in progress.

doi: 10.1016/j.nds.2014.08.064
Citations: PlumX Metrics


2014MA63      Nucl.Data Sheets 119, 368 (2014)

L.Mathieu, I.Companis, M.Aiche, P.Schillebeeckx, J.Heyse, G.Barreau, G.Boutoux, S.Czajkowski, F.Gunsing, B.Jurado, G.Kessedjian, A.J.M.Plompen, I.Tsekhanovitch

Development of Ionisation Chambers for the Simultaneous Measurement of the Neutron-induced Capture and Fission Cross Section of 233U

doi: 10.1016/j.nds.2014.08.101
Citations: PlumX Metrics


2012AS02      Acta Phys.Pol. B43, 261 (2012)

P.Ascher, N.Adimi, L.Audirac, B.Blank, F.Delalee, C.-E.Demonchy, J.Giovinazzo, T.Kurtukian-Nieto, S.Leblanc, J.-L.Pedroza, J.Pibernat, L.Serani, F.de Oliveira Santos, S.Grevy, J.-C.Thomas, L.Perrot, P.Srivastava, C.Borcea, I.Companis, L.V.Grigorenko, B.A.Brown

Two Proton Radioactivity Studies with a Time Projection Chamber

RADIOACTIVITY 45Fe, 54Zn(2p) [from Ni(58Ni, X), E=74.5 MeV/nucleon]; measured decay products, Ep, Ip; deduced angular and energy distributions between two protons. Comparison with MSU experiment.

doi: 10.5506/APhysPolB.43.261
Citations: PlumX Metrics


2012BO08      Phys.Lett. B 712, 319 (2012)

G.Boutoux, B.Jurado, V.Meot, O.Roig, L.Mathieu, M.Aiche, G.Barreau, N.Capellan, I.Companis, S.Czajkowski, K.-H.Schmidt, J.T.Burke, A.Bail, J.M.Daugas, T.Faul, P.Morel, N.Pillet, C.Theroine, X.Derkx, O.Serot, I.Matea, L.Tassan-Got

Study of the surrogate-reaction method applied to neutron-induced capture cross sections

NUCLEAR REACTIONS 174Yb(3He, αγ), (3He, pγ), E=24 MeV; measured reaction products, Eγ, Iγ; deduced σ, J, π. TALYS nuclear reaction model code calculations, comparison with available data.

doi: 10.1016/j.physletb.2012.05.012
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1986.


2011AS08      Phys.Rev.Lett. 107, 102502 (2011)

P.Ascher, L.Audirac, N.Adimi, B.Blank, C.Borcea, B.A.Brown, I.Companis, F.Delalee, C.E.Demonchy, F.de Oliveira Santos, J.Giovinazzo, S.Grevy, L.V.Grigorenko, T.Kurtukian-Nieto, S.Leblanc, J.-L.Pedroza, L.Perrot, J.Pibernat, L.Serani, P.C.Srivastava, J.-C.Thomas

Direct Observation of Two Protons in the Decay of 54Zn

RADIOACTIVITY 54Zn(2p) [from Ni(58Ni, X), E=75.5 MeV/nucleon]; measured decay products, proton spectra; deduced branching ratio, total decay energy, angular and energy correlations, T1/2. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.107.102502
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


2011BO30      J.Korean Phys.Soc. 59, 1924s (2011)

G.Boutoux, B.Jurado, V.Meot, M.Aiche, A.Bail, G.Barreau, E.Bauge, J.T.Burke, N.Capellan, I.Companis, S.Czajkowski, J.M.Daugas, D.Dassie, X.Derkx, T.Faul, B.Haas, L.Gaudefroy, F.Gunsing, I.Matea, L.Mathieu, P.Morel, N.Pillet, M.G.Porquet, O.Roig, P.Romain, O.Serot, J.Taieb, L.Tassan-Got, C.Theroine

Neutron-Induced Capture Cross Sections via the Surrogate Reaction Method

NUCLEAR REACTIONS 174Yb(3He, pγ), E=24 MeV; measured Ep, Ip(θ) using Si(Li), Eγ, Iγ using C6D6, pγ-coin, γγ-coin. 176Lu deduced γ emission probability, 175Lu(n, γ) σ using surrogate reaction; calculated 176Lu γ emission probability, 175Lu(n, γ) σ using TALYS.

doi: 10.3938/jkps.59.1924
Citations: PlumX Metrics


2011BU11      J.Korean Phys.Soc. 59, 1892s (2011)

J.T.Burke, J.J.Ressler, J.E.Escher, N.D.Scielzo, I.J.Thompson, R.Henderson, J.Gostic, L.Bernstein, D.Bluel, M.Weideking, V.Meot, O.Roig, L.W.Phair, R.Hatarik, J.Munson, C.Angell, B.Goldblum, C.W.Beausang, T.Ross, R.Hughes, M.Aiche, G.Barreau, N.Cappelan, S.Czajkowski, B.Hass, B.Jurado, L.Mathieu, I.Companis

Experimental Approaches to Studying the Fission Process Using the Surrogate Reaction Technique

NUCLEAR REACTIONS 235,236U, 239Pu(α, α'), E=55 MeV; measured E(charged particle), I(charged particle), Eγ, Iγ(θ), γγ-coin, fission products using STARS (Silicon Telescope Array for Reaction Studies), LIBERACE, HYDRA; deduced σ 238Pu(n, F) below 20 MeV using surrogate reactions. Comparison with other data.

doi: 10.3938/jkps.59.1892
Citations: PlumX Metrics


2011CO03      Rom.J.Phys. 56, 63 (2011)

I.Companis, M.Mirea, A.Isbasescu

Scission Configurations for the 236Np Fission

NUCLEAR REACTIONS 236Np(n, F), E not given; calculated minimal values of the deformation energy, fission shapes, height of the fission barrier. Woods-Saxon two-center shell model.


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