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Search: Author = Y.Ohkubo

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2013OH03      Phys.Rev. C 87, 044324 (2013)

Y.Ohkubo, A.Taniguchi, Q.Xu, M.Tanigaki, N.Shimizu, T.Otsuka

Magnetic moment of the 2083 keV level of 140Ce

RADIOACTIVITY 140La(β-)[from U(n, F)140Cs, E=thermal, followed by 140Cs --> 140Ba --> 140La β- decay chain]; measured time-differential perturbed angular correlation (TDPAC), Larmor frequencies. 140Ce; deduced magnetic moment of first 4+ level at 2083 keV.

NUCLEAR MOMENTS 140Ce; measured magnetic dipole moment of first 4+ level at 2083 keV using the time-differential perturbed angular correlation (TDPAC) technique, using the known value of hyperfine field at 141Ce in Fe. Comparison with previous studies, and with shell-model calculations. Systematics of magnetic dipole moments of first 2+ and 4+ states in 136Xe, 138Ba, 140Ce and 142Nd.

doi: 10.1103/PhysRevC.87.044324
Citations: PlumX Metrics

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

2009TA23      Phys.Rev. C 80, 034304 (2009)

M.Tanigaki, S.Izumi, H.Ouchi, A.Sasaki, Y.Miyashita, N.Sato, S.Hoshino, K.Shimada, T.Wakui, T.Shinozuka, Y.Ohkubo

Half-life and magnetic moment of the first excited state in 132I

RADIOACTIVITY 132Te(β-)[from U(p, X)132Sb, E=50 MeV]; measured Eγ, Iγ, half-life. 131Sb, 131Te, 131,133I, 131,132I(β-); measured Eγ. 132I; deduced level, J, π and magnetic moment.

NUCLEAR MOMENTS 132I; measured magnetic moment of the first excited state using time-differential perturbed angular correlation technique.

doi: 10.1103/PhysRevC.80.034304
Citations: PlumX Metrics

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

2008YO06      Hyperfine Interactions 181, 69 (2008)

A.Yokoyama, T.Hashimoto, K.Ihara, H.Kikunaga, N.Kinoshita, I.Yamazaki, K.Kataoka, M.Yanase, M.Takata, Y.Murakami, K.Takamiya, M.Tanigaki, Y.Ohkubo

Measurement of electric field gradient at 117In on the Cu-site in mavicyanin by perturbed angular correlation of γ-rays

doi: 10.1007/s10751-008-9691-z
Citations: PlumX Metrics

2007SA25      J.Radioanal.Nucl.Chem. 272, 665 (2007)

W.Sato, H.Ueno, A.Taniguchi, Y.Itsuki, Y.Kasamatsu, A.Shinohara, K.Asahi, Y.Ohkubo

Time-dependent quadrupole interactions for 140Ce ions implanted in highly oriented pyrolytic graphite

RADIOACTIVITY 140Ce(β-); measured Eγ, Iγ, angular anisotropy for source implanted in highly oriented pyrolytic graphite. Time-differential perturbed angular correlation.

doi: 10.1007/s10967-007-0643-x
Citations: PlumX Metrics

2005KA58      Radiochim.Acta 93, 511 (2005)

Y.Kasamatsu, H.Kikunaga, K.Takamiya, T.Mitsugashira, T.Nakanishi, Y.Ohkubo, T.Ohtsuki, W.Sato, A.Shinohara

Search for the decay of 229mTh by photon detection

RADIOACTIVITY 229mTh(IT) [from 233U(α)]; measured Eγ, Iγ; deduced T1/2 limits for isomer decay.

doi: 10.1524/ract.2005.93.9-10.511
Citations: PlumX Metrics

2004NI13      Phys.Rev. B 70, 132405 (2004)

K.Nishimura, S.Ohya, T.Ohtsubo, I.Sato, J.Goto, T.Izumikawa, M.Tanigaki, A.Taniguchi, Y.Ohkubo, Y.Kawase, S.Muto

Large hyperfine anomaly between 91Y and 91mY in Fe

NUCLEAR MOMENTS 91,91mY; measured NMR spectra; deduced hyperfine anomaly. Oriented nuclei in iron.

doi: 10.1103/PhysRevB.70.132405
Citations: PlumX Metrics

2004NI21      Hyperfine Interactions 159, 239 (2004)

K.Nishimura, S.Ohya, T.Ohtsubo, T.Izumikawa, M.Sasaki, I.Sato, M.Suzuki, J.Goto, M.Tanigaki, A.Taniguchi, Y.Ohkubo, Y.Kawase, S.Muto

Hyperfine Fields of Sr and Y in Ferromagnetic Hosts, and Magnetic Moment of 93Y

NUCLEAR MOMENTS 93Y; measured radio-frequency of oscillating field, Eγ, Iγ; deduced ground state nuclear magnetic moment. NMRON technique.

doi: 10.1007/s10751-005-9106-3
Citations: PlumX Metrics

2004SA69      Hyperfine Interactions 159, 251 (2004)

T.Sasanuma, A.Taniguchi, M.Tanigaki, Y.Ohkubo, Y.Kawase

Measurement of the Magnetic Moment of the First Excited State in 93Sr Using on-line TDPAC technique

NUCLEAR MOMENTS 93Sr; measured Eγ, Iγ, Larmor frequency; deduced T1/2 of first excited state, g-factor, μ of 213 keV state in 93Sr. TDPAC technique.

doi: 10.1007/s10751-005-9114-3
Citations: PlumX Metrics

2003SA67      J.Nucl.Radiochem.Sci. 4, No 1, 15 (2003)

W.Sato, Y.Kasamatsu, Y.Ohkubo, A.Taniguchi, A.Shinohara

Time-Differential Perturbed Angular Correlation of 140Ce Implanted in Highly Oriented Pyrolytic Graphite

2002TA01      Phys.Rev. C65, 017301 (2002)

A.Taniguchi, Y.Kawase, Y.Ohkubo, J.Goto, T.Ohtsubo, S.Ohya

Nuclear Magnetic Moment of the 143Ce Ground State

RADIOACTIVITY 143Ce(β-) [from 235U(n, F)]; measured Eγ, Iγ(θ, H, t), NMR on oriented nuclei. 143Ce deduced ground-state μ. Isotope separator, systematics in neighboring isotones discussed.

doi: 10.1103/PhysRevC.65.017301
Citations: PlumX Metrics

2001YO13      Radiochim.Acta 89, 703 (2001)

A.Yokoyama, S.Morimoto, H.Araki, J.Sanada, H.Baba, A.Shinohara, S.Shibata, T.Saito, Y.Ohkubo

Radiochemical Study on the Mechanism of Target Fragmentation of Cu, Nb, Pr and Au Targets Induced by 12C and 40Ar Projectiles

NUCLEAR REACTIONS Cu, Nb, Pr, Au(12C, X), (40Ar, X), E=180, 290, 400, 690 MeV/nucleon; measured fragments mass distributions, recoil momenta; deduced reaction mechanism features. Activation technique.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2074.

2000LI11      Eur.Phys.J. A 7, 397 (2000)

W.Li, Z.Qin, L.Zhao, W.Wen, Q.Lou, T.Sun, S.Ambe, Y.Ohkubo, M.Iwamoto, Y.Kobayashi, H.Maeda, F.Ambe

Mass Yield Distributions of Target Fragments from the Reactions of Iron with 135 MeV/nucleon 12C and 80 MeV/nucleon 16O Ions

NUCLEAR REACTIONS Fe(12C, X), E=135 MeV/nucleon; Fe(16O, X), E=80 MeV/nucleon; measured target-like fragment isotopic production σ. Comparison with theoretical calculations.

doi: 10.1007/PL00013623
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0438.

1999YO03      J.Radioanal.Nucl.Chem. 239, 143 (1999)

A.Yokoyama, S.Morimoto, T.Inoue, J.Sanada, H.Araki, T.Saito, H.Baba, S.Shibata, A.Shinohara, T.Muroyama, Y.Ohkubo

Reaction Mechanism for Target-Like Products from 197Au Target Bombarded with 12C Ions of Energies Above 100 MeV/u

NUCLEAR REACTIONS 197Au(12C, X), E=180, 230, 400 MeV/nucleon; measured Z=77-79 products production σ; deduced reaction mechanism features. Activation technique.

doi: 10.1007/BF02349546
Citations: PlumX Metrics

1996QI01      Z.Phys. A355, 315 (1996)

Z.Qin, A.Ono, W.Li, L.Zhao, T.Sun, S.Ambe, Y.Ohkubo, M.Iwamoto, Y.Kobayashi, H.Maeda, F.Ambe

The Mass Yield Distribution of Fragments Studied with Improved Antisymmetrized Molecular Dynamics

NUCLEAR REACTIONS Fe(12C, X), E=135 MeV/nucleon; calculated fragment production σ mass distributions. Improved antisymmetrized molecular dynamics.

doi: 10.1007/s002180050113
Citations: PlumX Metrics

1996YO09      J.Radioanal.Nucl.Chem. 212, 451 (1996)

A.Yokoyama, K.Takesako, T.Saito, H.Baba, Y.Ohkubo, A.Shinohara, M.Furukawa

Limiting Behavior of Target Fragmentation in the Reactions of Lanthanide Nuclei Induced by Heavy Projectiles

NUCLEAR REACTIONS 165Ho(15N, X), E=1 GeV; 165Ho(14N, X), E=1.8 GeV; 141Pr(40Ar, X), E=2.3, 3.8 GeV; measured fragment mass yield distribution; deduced target fragmentation limiting behavior related features. Off-line γ spectrometry.

doi: 10.1007/BF02163290
Citations: PlumX Metrics

1995AM09      J.Radioanal.Nucl.Chem. 190, 215 (1995)

F.Ambe, Y.Ohkubo, S.Ambe, Y.Kobayashi, T.Okada, Y.Yanagida, J.Nakamura, K.Asai, Y.Kawase, S.Uehara

Local Structure and Valence of Impurity Ions in Oxides by TDPAC and Mossbauer Emission Spectroscopy

RADIOACTIVITY 99Rh(EC), (β+); 117Cd(β-); measured γγ(θ, H, t); deduced local structure, impurity ions valence in α-FeO3, YBa2Cu3O(7-δ), Mo(M=Mn, Co, Ni), BaRu(2/3)Cd(1/3)O3. Mossbauer emission spectroscopy data also used.

doi: 10.1007/BF02039996
Citations: PlumX Metrics

1995KU36      Radiochim.Acta 69, 65 (1995)

H.Kusawake, T.Saito, A.Yokoyama, K.Takesako, N.Takahashi, H.Baba, Y.Ohkubo, A.Shinohara

Angular-Momentum Effect in the Fusion Reaction of 141Pr with 40Ar Projectiles

NUCLEAR REACTIONS, ICPND 141Pr(40Ar, X), (40Ar, F), E=7-94 MeV/nucleon; measured residuals production σ, cumulative yields for Zn to Ta isotopes, mass 65-173, fission product mass, charge distribution.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1910.

1994AS04      J.Phys.Soc.Jpn. 63, 1677 (1994); Erratum J.Phys.Soc.Jpn. 63, 4268 (1994)

K.Asai, Y.Ohkubo, T.Okada, Y.Yanagida, Y.Kawase, S.-I.Uehara, S.Ambe, F.Ambe

A Study of Hyperfine Magnetic Field at 117In(<-117Cd) in Fe3O4 by γ-γ Time-Differential Perturbed Angular Correlation

RADIOACTIVITY 117Cd(β-); measured γγ(θ, H, t); deduced hyperfine magnetic field at 117In.

doi: 10.1143/JPSJ.63.1677
Citations: PlumX Metrics

1994KI16      Nucl.Phys. A578, 621 (1994)

Y.K.Kim, J.C.Kim, C.-B.Moon, S.Y.Cho, Y.H.Chung, Y.Ohkubo

Heavy-Ion Reactions of Cu with 135 MeV/Nucleon 12C

NUCLEAR REACTIONS Cu(12C, X), E=135 MeV/nucleon; measured residues production σ, ranges; deduced mass-yield distribution, momentum transfer, excitation energy.

doi: 10.1016/0375-9474(94)90764-1
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0354.

1994OH05      Hyperfine Interactions 84, 83 (1994)

Y.Ohkubo, Y.Kobayashi, K.Harasawa, S.Ambe, T.Okada, K.Asai, S.Shibata, M.Takeda, F.Ambe

TDPAC and Emission Mossbauer Spectroscopy of 99Ru in YBa2Cu3O(7-x)

RADIOACTIVITY 99Rh(EC), (β+) [from 99Ru(p, n), E=13 MeV]; measured γγ(θ, H, t); deduced 99Ru hyperfine interactions in YBa2Cu3O(7-x).

doi: 10.1007/BF02060646
Citations: PlumX Metrics

1994OK03      Phys.Lett. 335B, 29 (1994)

H.Okuno, K.Asahi, H.Sato, H.Ueno, J.Kura, M.Adachi, T.Nakamura, T.Kubo, N.Inabe, A.Yoshida, T.Ichihara, Y.Kobayashi, Y.Ohkubo, M.Iwamoto, F.Ambe, T.Shimoda, H.Miyatake, N.Takahashi, J.Nakamura, D.Beaumel, D.J.Morrissey, W.-D.Schmidt-Ott, M.Ishihara

Systematic Behavior of Ejectile Spin Polarization in the Projectile Fragmentation Reaction

NUCLEAR REACTIONS 197Au, 93Nb, 27Al(15N, X), E=70-112 MeV/nucleon; 197Au(14N, X), E=39.4 MeV/nucleon; measured ejectile(12,13B) spin polarization; deduced role of new reaction mechanism.

doi: 10.1016/0370-2693(94)91553-9
Citations: PlumX Metrics

1994UE04      Hyperfine Interactions 84, 371 (1994)

H.Ueno, H.Okuno, K.Asahi, H.Sato, T.Kubo, T.Nakamura, N.Inabe, A.Yoshida, Y.Ohkubo, M.Adachi, T.Ichihara, M.Ishihara, T.Shimoda, H.Miyatake, N.Takahashi, W.-D.Schmidt-Ott

Spin-Polarized Radioactive Beams and β-NMR Experiments

RADIOACTIVITY 14,15B, 21F(β-) [from 197Au(14N, X), E=40.6 MeV/nucleon; 197Au(15N, X), E=69.5, 111 MeV/nucleon; 27Al, 93Nb(15N, X), E=69.5 MeV/nucleon]; measured β NMR, polarized sources; deduced μ. Model comparison.

doi: 10.1007/BF02060685
Citations: PlumX Metrics

1993OH10      Hyperfine Interactions 78, 535 (1993)

Y.Ohkubo, Y.Kobayashi, K.Asai, T.Okada, F.Ambe

TDPAC and Emission Mossbauer Studies of Fe3O4(99Ru)

RADIOACTIVITY 99Rh(EC), (β+); measured γγ(θ, H, t); deduced 99Ru hyperfine interactions in Fe3O4.

doi: 10.1007/BF00568188
Citations: PlumX Metrics

1993OK02      Hyperfine Interactions 78, 97 (1993)

H.Okuno, K.Asahi, H.Ueno, H.Sato, M.Adachi, T.Kubo, T.Nakamura, N.Inabe, A.Yoshida, Y.Ohkubo, T.Ichihara, M.Ishihara, T.Shimoda, H.Miyatake, N.Takahashi

Polarization in Projectile Fragmentation and g-Factor Measurements for Neutron-Rich Nuclei

NUCLEAR REACTIONS 159Tb, 27Al, 93Nb, 197Au(15N, 12B), (15N, 13B), 93Nb(18O, 12B), (18O, 14B), E=70 MeV/nucleon; 197Au(14N, 12B), E=40 MeV/nucleon; 197Au(15N, 12B), (15N, 13B), E=112 MeV/nucleon; measured projectile fragment polarization.

RADIOACTIVITY 14,15B(β-n) [from 93Nb(18O, X), E=70 MeV/nucleon]; 21F(β-n) [from 93Nb(22Ne, X), E=70 MeV/nucleon]; measured NMR spectra; deduced g factor.

doi: 10.1007/BF00568122
Citations: PlumX Metrics

1993TA29      Radiochim.Acta 62, 163 (1993)

E.Taniguchi, A.Shinohara, M.Narita, J.Kurachi, M.Furukawa, S.Kojima, Y.Ohkubo, F.Ambe, K.Takesako, H.Kusawake, T.Saito, S.Shibata

Yields and Recoil Properties of Products from the Interaction of Natural Copper with Intermediate-Energy 14N, 15N and 40Ar Ions

NUCLEAR REACTIONS Cu(14N, X), (15N, X), (40Ar, X), E=26-135 MeV/nucleon; measured fragment production σ vs mass; deduced mass yield distribution, longitudinal momentum transfer. Nondestructive γ-spectrometry.

1992AS01      Hyperfine Interactions 75, 101 (1992)

K.Asahi, H.Okuno, H.Ueno, H.Sato, J.Kura, T.Kubo, T.Nakamura, N.Inabe, A.Yoshida, Y.Ohkubo, M.Adachi, T.Ichihara, M.Ishihara, T.Shimoda, H.Miyatake, N.Takahashi, D.Beaumel, D.J.Morrissey, W.-D.Schmidt-Ott

Spin-Oriented Projectile Fragments: The first application to g-factor measurements

NUCLEAR REACTIONS 197Au(14N, 12B), E=40.6 MeV/nucleon; 27Al(15N, 13B), E=69.5 MeV/nucleon; measured fragment spin polarization, yield.

RADIOACTIVITY 14,15B(β-) [from 93Nb(18O, X), E=70 MeV/nucleon]; measured g-factor, preliminary results.

doi: 10.1007/BF02398968
Citations: PlumX Metrics

1985OH02      Phys.Rev. C31, 510 (1985)

Y.Ohkubo, C.J.Orth, D.J.Vieira, L.C.Liu

(π, πN) Reactions in 48Ca

NUCLEAR REACTIONS 48Ca(π+, π+p), (π+, π+n), (π-, π-p), (π-, π-n), E=100, 180, 300 MeV; 45Sc(π-, π0p), E=180 MeV; measured residuals production σ, deduced σ(π+)/σ(π-), final-state effects.

doi: 10.1103/PhysRevC.31.510
Citations: PlumX Metrics

1984OH04      Phys.Rev. C30, 254 (1984)

Y.Ohkubo, L.C.Liu

Interference Effects in (π, πN) Reactions

NUCLEAR REACTIONS 12C(π+, π+n), (π-, π-n), (π+, π0p), E=100-300 MeV; calculated σ(E), σ(π-)/σ(π+) vs E; deduced quasifree, nonquasifree reactions interference.

doi: 10.1103/PhysRevC.30.254
Citations: PlumX Metrics

1983OH01      Phys.Rev. C27, 1146 (1983)

Y.Ohkubo, N.T.Porile, C.J.Orth, L.C.Liu

Excitation Functions of the 127I(π, πxn) Reactions in the Region of the (3, 3) Resonance

NUCLEAR REACTIONS 127I(π+, xnπ+), (π-, xnπ-)117I/118I/119I/120I/121I/122I/123I/124I/125I/126I, E=60-350 MeV; 127I(p, np), (p, 2np), (p, 3np), (p, 3np), (p, 5np), (p, 6np), (p, 7np), (p, 8np), (p, 9np), (p, 10np), (p, n), (p, 3n), (p, 5n), (p, 6n), (p, 7n), E=500 MeV; measured residuals production σ(E); deduced reaction mechanism. Monte Carlo cascade evaporation calculations.

doi: 10.1103/PhysRevC.27.1146
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2370.

1982OH06      Phys.Rev. C25, 2638 (1982)

Y.Ohkubo, N.T.Porile

Nucleon Charge Exchange in the (π, πN) Reaction at Resonance Energies

NUCLEAR REACTIONS 12C, 25Mg, 197Au(π+, π+n), (π-, π-n), 25Mg(π+, π+p), (π-, π-p), E=100-300 MeV; calculated σ(E), nucleon charge exchange probability.

doi: 10.1103/PhysRevC.25.2638
Citations: PlumX Metrics

1982OH07      Phys.Rev. C26, 198 (1982)

Y.Ohkubo, N.T.Porile, C.J.Orth

Excitation Functions of the 127I(π±, πN)126I Reactions in the Vicinity of the (3, 3) Resonance

NUCLEAR REACTIONS 127I(π+, π+n), (π-, π-n), (π+, π0p), (π-, π-p), (π+, π+p), E=60-350 MeV; measured production σ(E) for 126I. Activation technique, KI target. Semiclassical, nucleon charge exchange, cascade evaporation models.

doi: 10.1103/PhysRevC.26.198
Citations: PlumX Metrics

1979SA34      Nucl.Phys. A330, 443 (1979)

T.Saito, Y.Ohkubo, A.Shinohara, R.Arakawa, K.Otozai

Electroexcitation of the Isomer in 103Rh

NUCLEAR REACTIONS 103Rh(e, e'), E=350-800 keV; measured σ(E).

doi: 10.1016/0375-9474(79)90065-4
Citations: PlumX Metrics

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