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NSR database version of April 27, 2024.

Search: Author = N.Gharibyan

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2024TA04      Nucl.Data Sheets 193, 131 (2024)

A.S.Tamashiro, J.T.Harke, J.G.Duarte, Y.Mishnayot, S.Burcher, S.W.Padgett, P.Zhao, B.D.Pierson, N.Gharibyan, J.M.Goda, L.R.Greenwood, D.K.Hayes, J.Hutchinson, N.Harward, K.Roberts, G.Slavik, P.Yap-Chiongco, J.Walker, C.J.Palmer

²³⁷Np Fission Spectrum Cumulative Fission Product Yield Measurement Using Godiva IV Critical Assembly

NUCLEAR REACTIONS ²³⁷Np(n, F)⁸⁸Kr/⁹¹Sr/⁹²Sr/⁹³Y/⁹⁵Zr/⁹⁷Zr/⁹⁹Mo/¹⁰³Ru/¹⁰⁵Ru/¹⁰⁵Rh/¹²⁷Sn/¹²⁸Sn/¹²⁹Sb/¹³⁰Sb/^131mTe/¹³²Te/^133mTe/¹³⁴Te/¹³¹I/¹³³I/¹³⁵I/¹³⁹Ba/¹⁴⁰Ba/¹⁴¹La/¹⁴²La/¹⁴³Ce/¹⁵¹Pm, E<10 MeV; measured reaction products, Eγ, Iγ; deduced precise integral measurement of fast neutron-induced fission product yields. Comparison with England and Rider's evaluation. Godiva IV is a critical assembly composed of unreflected highly enriched uranium (HEU) metal fuel.

doi: 10.1016/j.nds.2024.01.006
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2024TA05      Nucl.Data Sheets 193, 153 (2024)

A.S.Tamashiro, J.T.Harke, J.G.Duarte, Y.Mishnayot, S.W.Padgett, G.Slavik, S.Burcher, N.Harward, N.Gharibyan, R.A.Henderson, L.R.Greenwood, B.D.Pierson, J.M.Goda, J.A.Bounds, D.K.Hayes, C.J.Palmer

²³⁹Pu Fission Spectrum Cumulative Fission Product Yield Measurement Using Godiva IV Critical Assembly

NUCLEAR REACTIONS ²³⁹Pu(n, F)^85mKr/⁸⁷Kr/⁸⁸Kr/⁸⁹Rb/⁹¹Sr/⁹²Sr/⁹³Y/⁹⁵Zr/⁹⁷Zr/⁹⁹Mo/¹⁰³Ru/¹⁰⁵Ru/¹⁰⁵Rh/¹²⁷Sn/¹²⁸Sn/¹²⁷Sb/¹²⁹Sb/¹³⁰Sb/¹³¹Sb/^131mTe/¹³²Te/^133mTe/¹³⁴Te/¹³¹I/¹³³I/¹³⁵I/¹³⁸Cs/¹³⁹Ba/¹⁴⁰Ba/¹⁴¹Ba/¹⁴¹La/¹⁴²La/¹⁴³Ce/¹⁴⁶Pr/¹⁴⁹Nd/¹⁵¹Pm, E<10 MeV; measured reaction products, Eγ, Iγ; deduced precise integral measurement of fast neutron-induced fission product yields, cumulative fission product yield . Comparison with England and Rider's evaluation. Godiva IV is a critical assembly composed of unreflected highly enriched uranium (HEU) metal fuel.

doi: 10.1016/j.nds.2024.01.007
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2021CH12      Appl.Radiat.Isot. 171, 109647 (2021)

R.K.Chapman, A.S.Voyles, N.Gharibyan, L.A.Bernstein, J.E.Bevins

Measurement of the ¹⁶⁰Gd(p, n)¹⁶⁰Tb excitation function from 4-18 MeV using stacked-target activation

NUCLEAR REACTIONS ¹⁶⁰Gd(p, n), E=4-18 MeV; measured reaction products, Eγ, Iγ; deduced σ and uncertainties. Comparison with EMPIRE-3.2.3, TALYS-1.9, CoH-3.5.3, ALICE-2017 calculations.

doi: 10.1016/j.apradiso.2021.109647
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2692.

2021QU03      Appl.Radiat.Isot. 173, 109711 (2021)

N.Quartemont, N.Gharibyan, K.Moody, J.E.Bevins

Uranium integral fission product yields for a spectrally-shaped 14.1 MeV neutron source at the National Ignition Facility

NUCLEAR REACTIONS ¹⁹⁷Au(n, 2n), (n, γ), ⁹⁰Zr, ⁵⁵Mn(n, 2n), ⁵⁵Mn(n, γ), ^113,115In(n, n'), ¹¹⁵In(n, γ), ²³⁸U, ¹⁸⁶W(n, γ), ⁵⁸Ni(n, 2n), (n, p), ²⁷Al(n, α), ²³⁵U(n, F), E=14.1 MeV; measured reaction products, Eγ, Iγ. ^85,87,88Kr, ^91,92Sr, ^92,93Y, ^95,97Zr, ⁹⁹Mo, ^103,105Ru, ¹⁰⁵Rh, ^109,112Pd, ^111,113Ag, ¹¹⁵Cd, ^127,129Sb, ^{131,132,133,135}I, ^131,132Te, ¹³⁵Xe, ¹³⁶Cs, ^139,140Ba, ^{141,142,143,144}Ce, ¹⁴²La, ¹⁴⁷Nd, ^149,151Pm, ^153,156Sm, ^156,157Eu, ¹⁵⁹Gd, ¹⁶¹Tb; deduced cumulative and independent fission product yields using the neutron spectrum modeled in MCNP5 using ENDF-B/VIII.0 and IRDFF-II nuclear data libraries.

doi: 10.1016/j.apradiso.2021.109711
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14720.

2021SH10      Phys.Rev. C 103, 024614 (2021)

J.A.Shusterman, N.D.Scielzo, E.P.Abel, H.K.Clause, N.D.Dronchi, W.D.Frey, N.Gharibyan, J.A.Hart, C.S.Loveless, S.R.McGuinness, L.T.Sutherlin, K.J.Thomas, S.E.Lapi, J.D.Robertson, M.A.Stoyer, E.B.Norman, G.F.Peaslee, G.W.Severin, D.A.Shaughnessy

Aqueous harvesting of ⁸⁸Zr at a radioactive-ion-beam facility for cross-section measurements

NUCLEAR REACTIONS ⁸⁸Zr, ⁸⁸Y(n, γ), E=thermal, [secondary ⁸⁸Zr beam from ⁹Be(⁹²Mo, X)⁸⁸Zr, E=140 MeV/nucleon, and deposited in a water cell]; measured capture σ and resonance integrals by irradiating ⁸⁸Zr deposited activity at the reactor facilities of the University of Missouri Research Reactor (MURR) and the McClellan Nuclear Research Center (MNRC) of UC-Davis. ⁹Be(⁹²Mo, X)⁸⁸Zr, E=140 MeV/nucleon; measured reaction fragments separated by A1900 separator, and detected by particle identification detector (PID) via energy-loss and time-of-flight measurements, finally deposited the secondary beam in the water target irradiation cell of an aqueous harvesting end station, and also deposited in a graphite puck at NSCL-MSU cyclotron facility. ^81,82,83,84Rb, ^81,84,85,86Sr, ^{84,85,86m,86,87m,87}Y, ^86,87,88,89Zr, ^89,90,91Nb; measured Eγ, Iγ; deduced production rates in PID detector, and in activity collected in a graphite puck, with dominant component of ⁸⁸Zr, and ⁸⁸Y as its decay product.

doi: 10.1103/PhysRevC.103.024614
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14697.

2020KH11      Phys.Rev. C 102, 064602 (2020)

J.Khuyagbaatar, A.Yakushev, Ch.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Asai, M.Block, R.A.Boll, H.Brand, D.M.Cox, M.Dasgupta, X.Derkx, A.Di Nitto, K.Eberhardt, J.Even, M.Evers, C.Fahlander, U.Forsberg, J.M.Gates, N.Gharibyan, P.Golubev, K.E.Gregorich, J.H.Hamilton, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.J.Hinde, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, M.Laatiaoui, S.Lahiri, R.Lang, B.Lommel, M.Maiti, K.Miernik, S.Minami, A.K.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, P.Papadakis, D.Renisch, J.B.Roberto, D.Rudolph, J.Runke, K.P.Rykaczewski, L.G.Sarmiento, M.Schadel, B.Schausten, A.Semchenkov, D.A.Shaughnessy, P.Steinegger, J.Steiner, E.E.Tereshatov, P.Thorle-Pospiech, K.Tinschert, T.Torres De Heidenreich, N.Trautmann, A.Turler, J.Uusitalo, M.Wegrzecki, N.Wiehl, S.M.Van Cleve, V.Yakusheva

Search for elements 119 and 120

NUCLEAR REACTIONS ²⁴⁹Bk, ²⁴⁹Cf(⁵⁰Ti, X)²⁹⁹119^*/²⁹⁹120^*, E(average)=281.5 MeV; measured evaporation residues (ERs), Eα, correlated ER-α and ER-α₁-α₂-SF events using UNILAC accelerator, TASCA separator, and Focal plane detector system (FPDS) consisting of double-sided silicon strip (DSSD) detectors, and Si-strip detectors for position and time correlations of events. ^295,296119, ^295,296120; deduced no evidence for non-random correlated events related to 3n- or 4n-channel deexcitations of the compound nuclei ²⁹⁹119 and ²⁹⁹120, within a sensitivity limit of one event corresponding to σ=65 fb for ²⁴⁹Bk+⁵⁰Ti reaction and σ=200 fb for ²⁴⁹Cf+⁵⁰Ti; discussed nonobservation of Z=119 and 120 superheavy elements within the context of the fusion-evaporation reaction mechanism.

doi: 10.1103/PhysRevC.102.064602
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD8036.

2020MO24      J.Phys.(London) G47, 045116 (2020)

K.J.Moody, N.Gharibyan, D.A.Shaughnessy, P.M.Grant, J.M.Gostic, C.J.Cerjan, C.B.Yeamans, J.D.Despotopulos, S.A.Faye

Nuclear spectrometry of 9.6h ¹⁹⁶Au^m2 and reaction of ¹⁹⁷Au with fast neutrons

RADIOACTIVITY ¹⁹⁶Au(IT); measured decay products, Eγ, Iγ; deduced T_1/2, γray energies and intensities, branching ratios.

NUCLEAR REACTIONS ¹⁹⁷Au(n, 2n), E=14.1 MeV; measured reaction products, Eγ, Iγ; deduced isomer ratio. The National Ignition Facility at Lawrence Livermore National Laboratory.

doi: 10.1088/1361-6471/ab67e9
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Data from this article have been entered in the XUNDL database. For more information, click here.

2019KH04      Phys.Rev. C 99, 054306 (2019)

J.Khuyagbaatar, A.Yakushev, Ch.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Asai, M.Block, R.A.Boll, H.Brand, D.M.Cox, M.Dasgupta, X.Derkx, A.Di Nitto, K.Eberhardt, J.Even, M.Evers, C.Fahlander, U.Forsberg, J.M.Gates, N.Gharibyan, P.Golubev, K.E.Gregorich, J.H.Hamilton, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.J.Hinde, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, M.Laatiaoui, S.Lahiri, R.Lang, B.Lommel, M.Maiti, K.Miernik, S.Minami, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, P.Papadakis, D.Renisch, J.Roberto, D.Rudolph, J.Runke, K.P.Rykaczewski, L.G.Sarmiento, M.Schadel, B.Schausten, A.Semchenkov, D.A.Shaughnessy, P.Steinegger, J.Steiner, E.E.Tereshatov, P.Thorle-Pospiech, K.Tinschert, T.Torres De Heidenreich, N.Trautmann, A.Turler, J.Uusitalo, D.E.Ward, M.Wegrzecki, N.Wiehl, S.M.Van Cleve, V.Yakusheva

Fusion reaction ⁴⁸Ca + ²⁴⁹Bk leading to formation of the element Ts (Z=117)

NUCLEAR REACTIONS ²⁴⁹Bk(⁴⁸Ca, 3n), (⁴⁸Ca, 4n)²⁹³Ts/²⁹⁴Ts, E=252.1, 254.0, 258.0 MeV; measured reaction products, evaporation residues (ER), Eα, Iα, (ER)α-correlated decay chains, and σ using double-sided silicon strip detectors for α detection, TASCA separator for evaporation residue, and multiwire proportional counter for detection of residues at UNILAC accelerator facility of GSI. Comparison with previous experimental data for (ER)α-correlated decay chains from DGFRS-Dubna facility.

RADIOACTIVITY ²⁹⁴Ts, ²⁹⁰Mc, ²⁸⁶Nh, ²⁸²Rg, ²⁷⁸Mt, ²⁷⁴Bh, ²⁷⁰Db(α); ²⁹³Ts, ²⁸⁹Mc, ²⁸⁵Nh, ²⁸¹Rg(α); ²⁶⁶Lr, ²⁷⁰Db, ²⁷⁷Mt, ²⁷⁷Hs(SF); measured Eα, Iα, SF events, half-lives. ²⁶⁶Lr, ²⁷⁰Db(α), (SF); measured half-lives and α/SF branching ratios. Comparison with previous experimental data for (ER)α-correlated decay chains from DGFRS-Dubna facility. A=200-240; A=240-260; systematics of α-decay half-lives of isotopes produced in ⁴⁸Ca+²⁴⁹Bk and ⁴⁸Ca+²⁴⁹Cf reactions.

doi: 10.1103/PhysRevC.99.054306
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0944. Data from this article have been entered in the XUNDL database. For more information, click here.

2019MO11      Phys.Rev. C 99, 034307 (2019)

K.J.Moody, N.Gharibyan, P.M.Grant, D.A.Shaughnessy, J.D.Despotopulos, S.J.Tumey, T.A.Brown

Decay of ⁵⁸Co

RADIOACTIVITY ^58mCo(IT), (EC)[from ⁵⁵Mn(α, n), E=27 MeV]; measured Eγ, Iγ, half-life of ^58mCo decay. ⁵⁸Fe; deduced levels, ϵ feeding to 2077 level, logft value, absolute intensity of 24.9-keV γ ray. Comparison with previous experimental and evaluated values. ^58mCo(β^-), (EC); discussed expected logft values and partial half-lives for decays to g.s. in ⁵⁸Ni, and g.s., 811, 1675, 2077 and 2134 levels in ⁵⁸Fe.

NUCLEAR REACTIONS ⁵⁵Mn(α, n)⁵⁸Co/^58mCo, ⁵⁵Mn(α, 2n)⁵⁷Co, E=27 MeV; measured yields of reaction products.

doi: 10.1103/PhysRevC.99.034307
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Data from this article have been entered in the XUNDL database. For more information, click here.

2018GH10      Radiochim.Acta 106, 627 (2018)

N.Gharibyan, K.Moody, S.Tumey, T.Brown, P.Grant, G.Bench, D.Shaughnessy

Development of a "fission-proxy" method for the measurement of 14-MeV neutron fission yields

NUCLEAR REACTIONS ²³²Th(α, F), E=25.6 MeV; measured reaction products, Eγ, Iγ; deduced relative fission yields for A=70-165.

doi: 10.1515/ract-2017-2889
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2596.

2015GH01      J.Radioanal.Nucl.Chem. 303, 1335 (2015)

N.Gharibyan, K.J.Moody, J.D.Despotopulos, P.M.Grant, D.A.Shaughnessy

First fission yield measurements at the National Ignition Facility: 14-MeV neutron fission of ²³⁸U

NUCLEAR REACTIONS ²³⁸U(n, F), E=14 MeV; measured reaction products; deduced fission yields. Comparison with available data.

doi: 10.1007/s10967-014-3474-6
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14414.

2014KH04      Phys.Rev.Lett. 112, 172501 (2014)

J.Khuyagbaatar, A.Yakushev, C.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Asai, M.Block, R.A.Boll, H.Brand, D.M.Cox, M.Dasgupta, X.Derkx, A.Di Nitto, K.Eberhardt, J.Even, M.Evers, C.Fahlander, U.Forsberg, J.M.Gates, N.Gharibyan, P.Golubev, K.E.Gregorich, J.H.Hamilton, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.J.Hinde, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, M.Laatiaoui, S.Lahiri, R.Lang, B.Lommel, M.Maiti, K.Miernik, S.Minami, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, P.Papadakis, D.Renisch, J.Roberto, D.Rudolph, J.Runke, K.P.Rykaczewski, L.G.Sarmiento, M.Schadel, B.Schausten, A.Semchenkov, D.A.Shaughnessy, P.Steinegger, J.Steiner, E.E.Tereshatov, P.Thorle-Pospiech, K.Tinschert, T.Torres De Heidenreich, N.Trautmann, A.Turler, J.Uusitalo, D.E.Ward, M.Wegrzecki, N.Wiehl, S.M.Van Cleve, V.Yakusheva

⁴⁸Ca + ²⁴⁹Bk Fusion Reaction Leading to Element Z=117: Long-Lived α-Decaying ²⁷⁰Db and Discovery of ²⁶⁶Lr

NUCLEAR REACTIONS ²⁴⁹Bk(⁴⁸Ca, X)²⁹⁴Ts, E=268.3, 270.2, 274.1 MeV; measured reaction products, Eα, Iα; deduced σ. Comparison with experimental data.

RADIOACTIVITY ²⁹⁴Ts, ²⁹⁰Mc, ²⁸⁶Nh, ²⁸²Rg, ²⁷⁸Mt, ²⁷⁴Bh, ²⁷⁰Db, ²⁶⁶Lr(α); measured decay products, Eα, Iα; deduced T_1/2. Comparison with experimental data.

doi: 10.1103/PhysRevLett.112.172501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0731. Data from this article have been entered in the XUNDL database. For more information, click here.