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NSR database version of April 11, 2024.

Search: Author = O.Iwamoto

Found 61 matches.

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2024EN01      Nucl.Sci.Eng. 198, 786 (2024)

Sh.Endo, A.Kimura, Sh.Nakamura, O.Iwamoto, N.Iwamoto, G.Rovira, Y.Toh, M.Segawa, M.Maeda

Measurements of the Neutron Total and Capture Cross Sections and Derivation of the Resonance Parameters of 181Ta

NUCLEAR REACTIONS 181Ta(n, X), (n, γ), E=0.2-150 eV; measured reaction products, En, In; deduced σ, yields, resonance parameters using the resonance analysis code REFIT. Comparison with JENDL-4 and ENDF/B-VIII.o libraries, experimental data. The Accurate Neutron-Nucleus Research Measurement Instrument of the Materials and Life Science Experimental Facility in the Japan Proton Accelerator Research Complex.

doi: 10.1080/00295639.2023.2227826
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2023EN02      Eur.Phys.J. A 59, 288 (2023)

Sh.Endo, Sh.Kawamura, T.Okudaira, H.Yoshikawa, G.Rovira, A.Kimura, Sh.Nakamura, O.Iwamoto, N.Iwamoto

Measurements of neutron total and capture cross sections of 139La and evaluation of resonance parameters

NUCLEAR REACTIONS 139La(n, X), (n, γ), E=0.5-1500 eV; measured reaction products, En, In, Eγ, Iγ, TOF; deduced yields, σ, resonance parameters. Comparison with JENDL-5, ENDF/B-VIII.0 and EXFOR libraries. The Accurate Ne-utron-Nucleus Reaction measurement Instrument (ANNRI) of the Materials and Life Science Experimental Facility (MLF) in the Japan Proton Accelerator Research Complex (J-PARC).

doi: 10.1140/epja/s10050-023-01203-4
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Data from this article have been entered in the XUNDL database. For more information, click here.


2023IW01      J.Nucl.Sci.Technol.(Tokyo) 60, 1 (2023)

O.Iwamoto, N.Iwamoto, S.Kunieda, F.Minato, S.Nakayama, Y.Abe, K.Tsubakihara, S.Okumura, C.Ishizuka, T.Yoshida, S.Chiba, N.Otuka, J.-C.Sublet, H.Iwamoto, K.Yamamoto, Y.Nagaya, K.Tada, C.Konno, N.Matsuda, K.Yokoyama, H.Taninaka, A.Oizumi, M.Fukushima, S.Okita, G.Chiba, S.Sato, M.Ohta, S.Kwon

Japanese evaluated nuclear data library version 5: JENDL-5

NUCLEAR REACTIONS 233,235,238U, 237Np, 238,239,240,242Pu, 241,243Am, 243,244,245,246Cm(n, F), (n, γ), E<20 MeV; analyzed available data; deduced σ, average energies of prompt fission neutrons, prompt neutron multiplicities. Neutron sublibrary for all of stable and unstable isotopes with the half-lives longer than 1 day for Z<101 except 257Es. Comparison with JENDL-4.0, ENDF/B-VIII.0 and EXFOR libraries.

doi: 10.1080/00223131.2022.2141903
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2023KU04      Eur.Phys.J. A 59, 2 (2023)

S.Kunieda, O.Iwamoto, T.Fukahori, S.Chiba

Collaboration with Dr. Efrem Sh. Soukhovitsukii: our fortuitous experiences on optical model analysis, his contribution to nuclear data activities of Japan and a posthumous study on light-nuclei

NUCLEAR REACTIONS 160Gd(p, p'), E=65 MeV; 6,7Li, 9Be, 10B, 12C, N, O(p, X), E<200 MeV; calculated energy levels, J, π, bands using SRM, σ(θ), σ using SRM-CC; deduced optical model parameters. Comparison with experimental data. 2 computer codes, SHEMMAN and OPTMAN.

doi: 10.1140/epja/s10050-022-00907-3
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2023MI06      Phys.Rev. C 107, 054314 (2023)

F.Minato, T.Naito, O.Iwamoto

Nuclear many-body effects on particle emission following muon capture on 28Si and 40Ca

NUCLEAR REACTIONS 28Si, 40Ca(μ-, X), (μ-, pX), (μ-, d), (μ-, tX), (μ-, αX), (μ-, nX), E*<100 MeV ; calculated muon capture rate, particle yields after the muon capture, multiplicities of the emitted particles. Tamm-Dancoff approximation combined with the two-component exciton model, describing particle emission from the pre-equilibrium state. Hauser-Feshbach statistical model used for particle evaporation from the compound state. Comparison to available experimental data.

doi: 10.1103/PhysRevC.107.054314
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2022NA13      Few-Body Systems 63, 4 (2022)

S.Nakayama, O.Iwamoto, Y.Watanabe, K.Ogata

Theoretical Study of Deuteron-Induced Reactions in the Nuclear Data Field

NUCLEAR REACTIONS 9Be, C, 58Ni(d, xn), E < 100 MeV; calculated σ(θ, E) using the DEUteron-induced Reaction Analysis Code System (DEURACS). Comparison with JENDL library.

doi: 10.1007/s00601-021-01712-2
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2022OT02      J.Nucl.Sci.Technol.(Tokyo) 59, 1004 (2022)

N.Otuka, O.Iwamoto

EXFOR-based simultaneous evaluation of neutron-induced uranium and plutonium fission cross sections for JENDL-5

NUCLEAR REACTIONS 233,235,238U, 239,240,241Pu(n, F), E<200 MeV; analyzed EXFOR library data; deduced recommended σ by least-square s fitting of Schmittroth's roof function to the logarithms of the experimental cross sections and cross section ratios in the EXFOR library. Comparison with the evaluated cross sections in the JENDL-4.0 library and the IAEA Neutron Data Standards 2017, and 252Cf spontaneous fission neutron spectrum averaged cross sections.

doi: 10.1080/00223131.2022.2030259
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2020SH14      J.Radioanal.Nucl.Chem. 325, 155 (2020)

Y.Shibahara, S.Nakamura, A.Uehara, T.Fujii, S.Fukutani, A.Kimura, O.Iwamoto

Measurement of cesium isotopic ratio by thermal ionization mass spectrometry for neutron capture reaction studies on 135Cs

NUCLEAR REACTIONS 135Cs(n, γ), E thermal; measured reaction products, Eγ, Iγ; deduced σ, 135Cs/137Cs ratio.

doi: 10.1007/s10967-020-07198-2
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2019FU04      J.Nucl.Sci.Technol.(Tokyo) 56, 412 (2019)

N.Furutachi, F.Minato, O.Iwamoto

Phenomenological level density model with hybrid parameterization of deformed and spherical state densities

doi: 10.1080/00223131.2019.1588801
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2019FU05      Phys.Rev. C 100, 014610 (2019)

N.Furutachi, F.Minato, O.Iwamoto

Statistical properties of thermal neutron capture cross sections calculated with randomly generated resonance parameters

NUCLEAR REACTIONS 119,120Sn, 152Eu, 154Gd, 192Ir(n, γ), E=thermal; calculated resonance parameters, probability distribution of thermal neutron capture cross sections deduced stochastically with the resonance parameters randomly sampled from Wigner and Porter-Thomas distributions, distribution of average s-wave resonance spacing D0 and Γγ0 for 193 nuclei. Comparison with experimental data.

doi: 10.1103/PhysRevC.100.014610
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2019NA22      Phys.Rev. C 100, 044603 (2019)

S.Nakayama, O.Iwamoto, Y.Watanabe

Consistent description of light composite particle emission in deuteron-induced reactions

NUCLEAR REACTIONS 27Al, 58Ni(d, tX), (d, 3HeX), (d, αX), E=80 MeV; 90Zr(d, tX), 90Zr(d, 3HeX), 90Zr(d, αX), E=70 MeV; analyzed angle integrated σ(E) experimental data of the emitted particles using the deuteron-induced reaction analysis code system (DEURACS); investigated the role of the breakup and pre-equilibrium cluster emission processes in the light composite particle (LCP) emission in deuteron-induced reactions. Comparison with evaluated data in TENDL-2017 library.

doi: 10.1103/PhysRevC.100.044603
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2019NA34      J.Nucl.Sci.Technol.(Tokyo) 56, 123 (2019)

S.Nakamura, K.Terada, A.Kimura, T.Nakao, O.Iwamoto, H.Harada, A.Uehara, K.Takamiya, T.Fujii

Measurements of gamma-ray emission probabilities in the decay of americium-244g

RADIOACTIVITY 244Am(β-) [from 243Am(n, γ), E thermal]; measured decay products, Eγ, Iγ; deduced γ-ray energies and emission probabilities, ICC. Comparison with available data.

doi: 10.1080/00223131.2018.1539353
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2018CH12      Nucl.Data Sheets 148, 189 (2018)

M.B.Chadwick, R.Capote, A.Trkov, M.W.Herman, D.A.Brown, G.M.Hale, A.C.Kahler, P.Talou, A.J.Plompen, P.Schillebeeckx, M.T.Pigni, L.Leal, Y.Danon, A.D.Carlson, P.Romain, B.Morillon, E.Bauge, F.-J.Hambsch, S.Kopecky, G.Giorginis, T.Kawano, J.Lestone, D.Neudecker, M.Rising, M.Paris, G.P.A.Nobre, R.Arcilla, O.Cabellos, I.Hill, E.Dupont, A.J.Koning, D.Cano-Ott, E.Mendoza, J.Balibrea, C.Paradela, I.Duran, J.Qian, Z.Ge, T.Liu, L.Hanlin, X.Ruan, W.Haicheng, M.Sin, G.Noguere, D.Bernard, R.Jacqmin, O.Bouland, C.De Saint Jean, V.G.Pronyaev, A.V.Ignatyuk, K.Yokoyama, M.Ishikawa, T.Fukahori, N.Iwamoto, O.Iwamoto, S.Kunieda, C.R.Lubitz, M.Salvatores, G.Palmiotti, I.Kodeli, B.Kiedrowski, D.Roubtsov, I.Thompson, S.Quaglioni, H.I.Kim, Y.O.Lee, U.Fischer, S.Simakov, M.Dunn, K.Guber, J.I.Marquez Damian, F.Cantargi, I.Sirakov, N.Otuka, A.Daskalakis, B.J.McDermott, S.C.van der Marck

CIELO Collaboration Summary Results: International Evaluations of Neutron Reactions on Uranium, Plutonium, Iron, Oxygen and Hydrogen

NUCLEAR REACTIONS 1H, 16O, 56Fe, 235,238U, 239Pu(n, X), E<20 MeV; analyzed available data; calculated σ, σ(θ), σ(θ, E).

doi: 10.1016/j.nds.2018.02.003
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2018NA24      Phys.Rev. C 98, 044606 (2018)

S.Nakayama, N.Furutachi, O.Iwamoto, Y.Watanabe

Role of breakup processes in deuteron-induced spallation reactions at 100-200 MeV/nucleon

NUCLEAR REACTIONS 93Zr, 107Pd(d, X), E=100-200 MeV/nucleon; calculated total isotopic production σ(E) for Z=36-47 nuclei, and component neutron and proton absorption σ(E) using DEURACS and CCONE codes for deuteron-induced spallation reactions on long-lived fission products (LLFPs). Discussed role of breakup processes. Comparison with experimental data.

doi: 10.1103/PhysRevC.98.044606
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2016IW01      Nucl.Data Sheets 131, 259 (2016)

O.Iwamoto, N.Iwamoto, S.Kunieda, F.Minato, K.Shibata

The CCONE Code System and its Application to Nuclear Data Evaluation for Fission and Other Reactions

doi: 10.1016/j.nds.2015.12.004
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2016NA23      Phys.Rev. C 94, 014618 (2016)

S.Nakayama, H.Kouno, Y.Watanabe, O.Iwamoto, K.Ogata

Theoretical model analysis of (d, xn) reactions on 9Be and 12C at incident energies up to 50 MeV

NUCLEAR REACTIONS 9Be(d, n)10B, E=7-25 MeV; 12C(d, n)13N, E=7-18 MeV; analyzed σ(θ, E*), spectroscopic factors. 12C(d, xn), (d, xp), E=50 MeV; calculated double differential σ(q). 9Be, 12C(d, xn), E=7-50 MeV; calculated double-differential thick target neutron yields (TTNYs), and yields as function of angle. Deuteron-induced reaction analysis code system (DEURACS). Comparison with experimental data. Relevance to design of deuteron accelerator neutron sources.

doi: 10.1103/PhysRevC.94.014618
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2015KI13      Eur.Phys.J. A 51, 180 (2015)

A.Kimura, H.Harada, S.Nakamura, O.Iwamoto, Y.Toh, M.Koizumi, F.Kitatani, K.Furutaka, M.Igashira, T.Katabuchi, M.Mizumoto, J.-ic.Hori, K.Kino, Y.Kiyanagi

Current activities and future plans for nuclear data measurements at J-PARC

doi: 10.1140/epja/i2015-15180-2
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2014CH24      Nucl.Data Sheets 118, 1 (2014)

M.B.Chadwick, E.Dupont, E.Bauge, A.Blokhin, O.Bouland, D.A.Brown, R.Capote, A.Carlson, Y.Danon, C.De Saint Jean, M.Dunn, U.Fischer, R.A.Forrest, S.C.Frankle, T.Fukahori, Z.Ge, S.M.Grimes, G.M.Hale, M.Herman, A.Ignatyuk, M.Ishikawa, N.Iwamoto, O.Iwamoto, M.Jandel, R.Jacqmin, T.Kawano, S.Kunieda, A.Kahler, B.Kiedrowski, I.Kodeli, A.J.Koning, L.Leal, Y.O.Lee, J.P.Lestone, C.Lubitz, M.MacInnes, D.McNabb, R.McKnight, M.Moxon, S.Mughabghab, G.Noguere, G.Palmiotti, A.Plompen, B.Pritychenko, V.Pronyaev, D.Rochman, P.Romain, D.Roubtsov, P.Schillebeeckx, M.Salvatores, S.Simakov, E.Sh.Soukhovitskii, J.C.Sublet, P.Talou, I.Thompson, A.Trkov, R.Vogt, S.van der Marck

The CIELO Collaboration: Neutron Reactions on 1H, 16O, 56Fe, 235, 238U, and 239Pu

COMPILATION 1H, 16O, 56Fe, 235,238U, 239Pu(n, x), E≈0-20 MeV; analyzed available data on σ, neutron multiplicity, criticality using ENDF/B-VII.1, JENDL-4.0, JEFF-3.1, ROSFOND 2010, CENDL-3.1, EAF-2010 evaluated nuclear libraries, Atlas of Neutron Resonances, Neutron Cross Section Standards evaluations; deduced recommendations for CIELO library, parameters, Maxwellian-averaged, thermal, californium σ, Westcott factors, resonance integrals. Compared with available data.

doi: 10.1016/j.nds.2014.04.002
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2014DU08      Nucl.Data Sheets 120, 264 (2014)

E.Dupont, M.B.Chadwick, Y.Danon, C.De Saint Jean, M.Dunn, U.Fischer, R.A.Forrest, T.Fukahori, Z.Ge, H.Harada, M.Herman, M.Igashira, A.Ignatyuk, M.Ishikawa, O.Iwamoto, R.Jacqmin, A.C.Kahler, T.Kawano, A.J.Koning, L.Leal, Y.O.Lee, R.McKnight, D.McNabb, R.W.Mills, G.Palmiotti, A.Plompen, M.Salvatores, P.Schillebeeckx

Working Party on International Nuclear Data Evaluation Cooperation (WPEC)

doi: 10.1016/j.nds.2014.07.063
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2014HA21      Nucl.Data Sheets 118, 258 (2014)

S.Hashimoto, O.Iwamoto, Y.Iwamoto, T.Sato, K.Niita

New Approach for Nuclear Reaction Model in the Combination of Intra-nuclear Cascade and DWBA

NUCLEAR REACTIONS 7Li(p, n), E=45 MeV;9Be(p, n), E=50 MeV; calculated σ(θ). Compared with data. 7Li(p, xn), E=39, 43 MeV;9Be(p, xn), E-35, 39 MeV;calculated σ(En, θ=00). Compared with data and other calculations. Intranuclear cascade plus DWBA.

doi: 10.1016/j.nds.2014.04.052
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2014IW02      Nucl.Data Sheets 118, 204 (2014)

O.Iwamoto

Progress in Developing Nuclear Reaction Calculation Code CCONE for High Energy Nuclear Data Evaluation

NUCLEAR REACTIONS 27Al(n, αx), (n, px), (n, dx), (n, tx), E=28.5, 41, 62.7 MeV; calculated emitted σ(Eparticle) using CCONE code. Compared to data.

doi: 10.1016/j.nds.2014.04.037
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2014NA19      Nucl.Data Sheets 118, 305 (2014)

S.Nakayama, S.Araki, Y.Watanabe, O.Iwamoto, T.Ye, K.Ogata

Cross Section Calculations of Deuteron-induced Reactions Using the Extended CCONE Code

NUCLEAR REACTIONS 27Al, 58Ni(d, xp), E=56, 100 MeV; calculated σ(Ep, θ). Compared to data. 27Al(d, d), E=11.2, 63 MeV;58Ni(d, d), E=12, 27.5, 56, 79 MeV; calculated σ(θ). Compared to data. Extended CCONE code with elastic breakup and stripping calculated using CDCC and Glauber model.

doi: 10.1016/j.nds.2014.04.065
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2014SA38      J.Phys.Soc.Jpn. 83, 073201 (2014)

N.Sato, K.Tsukada, S.Watanabe, N.S.Ishioka, M.Kawabata, H.Saeki, Y.Nagai, T.Kin, F.Minato, N.Iwamoto, O.Iwamoto

First Measurement of the Radionuclide Purity of the Therapeutic Isotope 67Cu Produced by 68Zn(n, x) Reaction Using natC(d, n) Neutrons

NUCLEAR REACTIONS 68Zn(n, X)64Cu/67Cu/69Zn/65Zn/65Ni/66Ni, E<40 MeV; measured reaction products, Eγ, Iγ; deduced yields. Comparison with CCONE nuclear model code calculations.

doi: 10.7566/JPSJ.83.073201
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2013KI03      J.Phys.Soc.Jpn. 82, 034201 (2013)

T.Kin, Y.Nagai, N.Iwamoto, F.Minato, O.Iwamoto, Y.Hatsukawa, M.Segawa, H.Harada, C.Konno, K.Ochiai, K.Takakura

New Production Routes for Medical Isotopes 64Cu and 67Cu Using Accelerator Neutrons

NUCLEAR REACTIONS Zn(n, X)64Cu/67Cu, E=14 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with experimental data.

NUCLEAR REACTIONS Cu(d, n)64Cu/67Cu, E=40 MeV; estimated production yields. 67Zn(n, p)67Cu, 68Zn(n, X)67Cu, E=14.7 MeV; calculated yields. comparison with available data.

doi: 10.7566/JPSJ.82.034201
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2013NA16      J.Phys.Soc.Jpn. 82, 064201 (2013)

Y.Nagai, K.Hashimoto, Y.Hatsukawa, H.Saeki, S.Motoishi, N.Sato, M.Kawabata, H.Harada, T.Kin, K.Tsukada, T.K.Sato, F.Minato, O.Iwamoto, N.Iwamoto, Y.Seki, K.Yokoyama, T.Shiina, A.Ohta, N.Takeuchi, Y.Kawauchi, N.Sato, H.Yamabayashi, Y.Adachi, Y.Kikuchi, T.Mitsumoto, T.Igarashi

Generation of Radioisotopes with Accelerator Neutrons by Deuterons

NUCLEAR REACTIONS 100Mo(n, 2n), E<20 MeV; measured reaction products, Eγ, Iγ; deduced yields. Comparison with available data.

doi: 10.7566/JPSJ.82.064201
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2011CH55      Phys.Rev. C 84, 054602 (2011)

S.Chiba, O.Iwamoto, Y.Aritomo

Spin-dependent observables in surrogate reactions

NUCLEAR REACTIONS 237,239U(n, γ)238U*/240U*, E=0-5 MeV; calculated spectra of evaporated neutrons, multiplicity of γ rays, spectra of cascading γ rays, fission fragment mass distribution as function of the spin of the compound nucleus. Hauser-Feshbach theory , and Fluctuation-dissipation theorem. Surrogate ratio methods.

doi: 10.1103/PhysRevC.84.054602
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2011IW04      J.Korean Phys.Soc. 59, 1224s (2011)

O.Iwamoto, T.Nakagawa, S.Chiba, N.Otuka

Covariance Evaluation for Actinide Nuclear Data in JENDL-4

COMPILATION 233,235,238U(n, F), E=0.01-20 eV;239Pu(n, F), E=0.01 eV-20 MeV;235U, 237Np, 241Am(n, γ), E=0.01-20 eV; evaluated σ, σ covariances. 237Np(n, γ), E=0.001-20 MeV; calculated σ using different models and parameters; evaluated σ covariance. 233U(n, X), E=0.001-20 MeV; evaluated σ, σ uncertainty, covariance. 232Th, 232,233,234,235,236,238U, 237Np, 239,240,241,242Pu, 241,242m,243Am, 242,244,245Cm(n, F), (n, γ), E=thermal; evaluated σ uncertainty, covariance. 242,244,245Cm(n, F), E=0.1-20 MeV; evaluated σ uncertainty, covariance. 233U(n, F), E=0.01-20 MeV; evaluated prompt, delayed neutron multiplicity. Comparison with data.

doi: 10.3938/jkps.59.1224
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2011SH01      J.Nucl.Sci.Technol.(Tokyo) 48, 1 (2011)

K.Shibata, O.Iwamoto, T.Nakagawa, N.Iwamoto, A.Ichihara, s.Kunieda, S.Chiba, K.Furutaka, N.Otuka, T.Ohsawa, T.Murata, H.Matsunobu, A.Zukeran, S.Kamada, J.-i.Katakura

JENDL-4.0: A New Library for Nuclear Science and Engineering

doi: 10.3327/jnst.48.1
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2011SH34      J.Korean Phys.Soc. 59, 1046s (2011)

K.Shibata, O.Iwamoto, T.Nakagawa, N.Iwamoto, A.Ichihara, S.Kunieda, S.Chiba, J.Katakura, N.Otuka

JENDL-4.0: A New Library for Innovative Nuclear Energy Systems

COMPILATION Z=89-100(n, f), (n, 2n), E=thermal-2.25 keV; compiled, evaluated σ, fission products σ for (n, 2n), (n, γ). 1,2H, 9Be, 10B, C, 14N, 16O, Si, Ca, Ti, 50,51V, Cr, 55Mn, 56,57,59Fe, 59Ni, 169Tm, Yb, 174,176,177,178,179,180,181,182Hf, 180,182,183,184,186W, Os, 197Au, Pb, 209Bi(n, X), E not given; compiled, evaluated σ; deduced resolved resonance parameters, coupled channel optical model parameters. DWBA, statistical model codes POD, CCONE.

doi: 10.3938/jkps.59.1046
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2011YA20      J.Korean Phys.Soc. 59, 1298s (2011)

N.Yamano, T.Yoshida, K.Nakajima, M.Ishikawa, K.Shibata, K.Suyama, K.Okumura, O.Iwamoto, M.Uematsu, Y.Tahara

Quality Management System Proposed to JENDL Evaluation Project

doi: 10.3938/jkps.59.1298
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2010CH08      Phys.Rev. C 81, 044604 (2010)

S.Chiba, O.Iwamoto

Verification of the surrogate ratio method

NUCLEAR REACTIONS 197Au, 193Ir, 236,238U(n, γ), E<5 MeV; calculated fission and capture probabilities for positive and negative parity states in final nuclei. Verification of surrogate ratio method.

doi: 10.1103/PhysRevC.81.044604
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2009IW02      J.Nucl.Sci.Technol.(Tokyo) 46, 510 (2009)

O.Iwamoto, T.Nakagawa, N.Otuka, S.Chiba, K.Okumura, G.Chiba, T.Ohsawa, K.Furutaka

JENDL Actinoid File 2008

doi: 10.3327/jnst.46.510
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2009KU13      J.Nucl.Sci.Technol.(Tokyo) 46, 914 (2009)

S.Kunieda, S.Chiba, K.Shibata, A.Ichihara, O.Iwamoto, N.Iwamoto, T.Fukahori, E.Sh.Sukhovitskii

Extensive Study of the Soft-Rotator Model Hamiltonian Parameters for Medium and Heavy Even-Even Nuclei

NUCLEAR STRUCTURE 56,58Fe, 60,62,64Ni, 64,66,68,70Zn, 70,72,74,76Ge, 74,76,78,80,82Se, 86Sr, 96,98,100Mo, 102Ru, 104,106,108,110Pd, 106,108,110,112,114,116Cd, 116,118,120,122,124Sn, 122,124,126,128,130Te, 144,150Nd, 148,150,152,154Sm, 160Gd, 164Dy, 166,168Er, 174,176Yb, 178,180Hf, 182,184W, 192Os, 194Pt, 232Th, 238U; calculated excitation energy levels, J, π, quadrupole deformation parameters, B(E2), B(E3); deduced shell structure effects, agreement with mass-model results. Comparison with experimental results, SRM-CC analysis.

NUCLEAR REACTIONS 56,58Fe, 60,62,64Ni, 64,66,68,70Zn, 70,72,74,76Ge, 74,76,78,80,82Se, 86Sr, 96,98,100Mo, 102Ru, 104,106,108,110Pd, 106,108,110,112,114,116Cd, 116,118,120,122,124Sn, 122,124,126,128,130Te, 144,150Nd, 148,150,152,154Sm, 160Gd, 164Dy, 166,168Er, 174,176Yb, 178,180Hf, 182,184W, 192Os, 194Pt, 232Th, 238U(p, p'), E = 22.3, 65 MeV; calculated inelastic proton σ(θ). Coupled-channel optical model analysis.

doi: 10.3327/jnst.46.914
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2009NA27      J.Phys.Soc.Jpn. 78, 113201 (2009)

Y.Nagai, O.Iwamoto, N.Iwamoto, T.Kin, M.Segawa, Y.Hatsukawa, H.Harada

Production of an Isomeric State of 90Y by Fast Neutrons for Nuclear Diagnostics

NUCLEAR REACTIONS 90Zr(n, p), 93Nb(n, α), E=14 MeV; calculated σ for production of isomeric states.

doi: 10.1143/JPSJ.78.113201
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2008IW05      Nucl.Data Sheets 109, 2885 (2008)

O.Iwamoto, T.Nakagawa, N.Otuka, S.Chiba, K.Okumura, G.Chiba

JENDL Actinoid File 2008 and Plan of Covariance Evaluation

NUCLEAR REACTIONS 242Am(n, f), E < 50 MeV; analyzed cross sections.

doi: 10.1016/j.nds.2008.11.028
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2007IW01      J.Nucl.Sci.Technol.(Tokyo) 44, 687 (2007)

O.Iwamoto

Development of a Comprehensive Code for Nuclear Data Evaluation, CCONE, and Validation Using Neutron-Induced Cross Sections for Uranium Isotopes

NUCLEAR REACTIONS 232,233,234,235,236,237,238U(n, X), E=10-20 MeV; analyzed data using CCONE code for nuclear data evaluation.

doi: 10.1080/18811248.2007.9711857
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2004SU12      J.Phys.(London) G30, 905 (2004)

E.Sh.Sukhovitskii, S.Chiba, J.-Y.Lee, O.Iwamoto, T.Fukahori

Global coupled-channel optical potential for nucleon-actinide interaction from 1 keV to 200 MeV

NUCLEAR REACTIONS 232Th, 233,235,238U, 239,240,242Pu(n, X), E=0.1-200 MeV; calculated total σ, resonance parameters. 232Th, 238U(n, n), (n, n'), E=3.4-15 MeV; 232Th, 238U(p, p), (p, p'), E=20-65 MeV; calculated σ(θ). 232Th, 233,235,238U, 239,240,242Pu deduced deformation parameters. Global coupled-channel optical potential, comparison with data.

doi: 10.1088/0954-3899/30/7/007
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2003SU31      J.Nucl.Sci.Technol.(Tokyo) 40, 635 (2003)

W.Sun, Y.Watanabe, E.Sh.Sukhovitskii, O.Iwamoto, S.Chiba

Coupled-Channels Analysis of Nucleon Interaction Data of 28, 30Si up to 200 MeV Based on the Soft Rotator Model

NUCLEAR REACTIONS 28Si(n, n), (n, n'), (p, p), (p, p'), E=14-180 MeV; 30Si(p, p'), E=52 MeV; calculated σ(θ). 28Si(p, X), E=5-200 MeV; calculated reaction σ. Soft rotator model, coupled-channels approach, comparison with data.

NUCLEAR STRUCTURE 28,30Si; calculated levels, J, π. Soft rotator model.

doi: 10.1080/18811248.2003.9715401
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2002SH40      J.Nucl.Sci.Technol.(Tokyo) 39, 1125 (2002)

K.Shibata, T.Kawano, T.Nakagawa, O.Iwamoto, J.Katakura, T.Fukahori, S.Chiba, A.Hasegawa, T.Murata, H.Matsunobu, T.Ohsawa, Y.Nakajima, T.Yoshida, A.Zukeran, M.Kawai, M.Baba, M.Ishikawa, T.Asami, T.Watanabe, Y.Watanabe, M.Igashira, N.Yamamuro, H.Kitazawa, N.Yamano, H.Takano

Japanese Evaluated Nuclear Data Library Version 3 Revision-3: JENDL-3.3

doi: 10.1080/18811248.2002.9715303
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2002SU21      J.Nucl.Sci.Technol.(Tokyo) 39, 816 (2002)

E.S.Sukhovitsky, S.Chiba, J.-Y.Lee, Y.-O.Lee, J.Chang, T.Maruyama, O.Iwamoto

Nuclear Level Structure, B(E2) Gamma-Transitions and Nucleon Interaction Data for 56Fe by a Unified Soft-Rotator Model and Couple-Channels Framework

NUCLEAR STRUCTURE 56Fe; calculated levels, J, π, B(E2). Soft-rotator model, comparison with data.

NUCLEAR REACTIONS 56Fe(n, X), E < 160 MeV; calculated total neutron σ. 56Fe(n, n), E=8-75 MeV; 56Fe(n, n'), E=8-26 MeV; 56Fe(p, p), E=7-156 MeV; 56Fe(p, p'), E=7-62 MeV; calculated σ(θ). Coupled-channels approach, comparison with data.


2001LE24      J.Korean Phys.Soc. 38, 88 (2001)

J.-Y.Lee, E.S.Sukhovitsky, Y.-O.Lee, J.Chang, S.Chiba, O.Iwamoto

Analyses of the Nuclear Level Structure and Nucleon Interaction Data for 56Fe Based on the Soft-Rotator Model

NUCLEAR STRUCTURE 56Fe; calculated levels, J, π, configurations. Soft-rotator model.

NUCLEAR REACTIONS 56Fe(n, X), E=0-160 MeV; calculated total σ. 56Fe(n, n), (n, n'), (p, p), (p, p'), E=8-75 MeV; calculated σ(θ). Soft-rotator model, coupled-channels approach. Comparisons with data.


2000CH31      J.Nucl.Sci.Technol.(Tokyo) 37, 498 (2000)

S.Chiba, O.Iwamoto, E.S.Sukhovitsky, Y.Watanabe, T.Fukahori

Coupled-Channels Optical Potential for Interaction of Nucleons with 12C Up to 150 MeV in the Soft-Rotator Model

NUCLEAR REACTIONS 12C(n, n), (n, n'), (p, p), (p, p'), E=20-150 MeV; calculated σ(θ), σ(E, θ), B(E2); deduced parameters. Soft-rotator nuclear model, coupled-channels method. Comparisons with data.

doi: 10.1080/18811248.2000.9714923
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2000IB01      Nucl.Instrum.Methods Phys.Res. A446, 536 (2000)

M.Ibaraki, M.Baba, T.Miura, Y.Hirasawa, Y.Nauchi, H.Nakashima, S.-I.Meigo, O.Iwamoto, S.Tanaka

Experimental Method for Neutron Elastic Scattering Cross-Section Measurement in 40-90 MeV Region at TIARA

NUCLEAR REACTIONS C, Fe, Pb(n, n), E=40-90 MeV; measured elastic σ(θ).

doi: 10.1016/S0168-9002(99)01274-7
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22480.


2000KA20      J.Nucl.Sci.Technol.(Tokyo) 37, 327 (2000)

T.Kawano, H.Matsunobu, T.Murata, A.Zukeran, Y.Nakajima, M.Kawai, O.Iwamoto, K.Shibata, T.Nakagawa, T.Ohsawa, M.Baba, T.Yoshida

Simultaneous Evaluation of Fission Cross Sections of Uranium and Plutonium Isotopes for JENDL-3.3

NUCLEAR REACTIONS 233,235,238U, 239,240,241Pu(n, F), E < 20 MeV; analyzed fission σ. Simultaneous evaluation.

doi: 10.1080/18811248.2000.9714902
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2000SU09      J.Nucl.Sci.Technol.(Tokyo) 37, 120 (2000)

E.S.Sukhovitsky, O.Iwamoto, S.Chiba, T.Fukahori

Nucleon Optical Potential of Uranium-238 up to 150 MeV

NUCLEAR REACTIONS 238U(n, X), E < 150 MeV; calculated total σ. 238U(n, n), (n, n'), E=3.4-14 MeV; 238U(p, p), (p, p'), E=20-65 MeV; calculated σ(θ). Optical model, comparisons with data.


2000SU19      Phys.Rev. C62, 044605 (2000)

E.Sh.Sukhovitsky, Y.-O.Lee, J.Chang, S.Chiba, O.Iwamoto

Nucleon Interaction with 58Ni up to 150 MeV Studied in the Coupled-Channels Approach Based on the Soft-Rotator Nuclear Structure Model

NUCLEAR STRUCTURE 58Ni; calculated levels, J, π. Soft-rotator model. Comparison with data.

NUCLEAR REACTIONS 58Ni(n, n), E < 150 MeV; calculated σ. 58Ni(n, n), (n, n'), (p, p), (p, p'), E=5-65 MeV; calculated σ(E, θ). Coupled channels method. Comparisons with data.

doi: 10.1103/PhysRevC.62.044605
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1999HA27      J.Nucl.Sci.Technol.(Tokyo) 36, 313 (1999)

M.Harada, Y.Watanabe, A.Yamamoto, S.Yoshioka, K.Sato, T.Nakashima, H.Ijiri, H.Yoshida, Y.Uozumi, N.Koori, S.-I.Meigo, O.Iwamoto, T.Fukahori, S.Chiba

The 12C(p, p'3α) Breakup Reaction Induced by 14, 18 and 26 MeV Protons

NUCLEAR REACTIONS 12C(p, xp), (p, xα), (p, p'α), (p, p3α), E=14, 18, 26 MeV; measured proton spectra, Eα, σ(E, θ); deduced role of three-body simultaneous breakup. Comparison with Monte Carlo calculations.

doi: 10.1080/18811248.1999.9726214
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1761.


1999SU01      Nucl.Phys. A646, 19 (1999)

E.Sh.Sukhovitsky, S.Chiba, O.Iwamoto

Coupled-Channels Optical Model Calculations with Account of Nuclear Volume Conservation

NUCLEAR REACTIONS 12C(n, n'), E=20-40 MeV; calculated σ(θ); deduced optical model parameters, volume conservation role. Coupled-channels, soft-rotator model.

doi: 10.1016/S0375-9474(98)00630-7
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1998CH33      Phys.Rev. C58, 2205 (1998); Erratum Phys.Rev. C59, 558 (1999)

S.Chiba, K.Togasaki, M.Ibaraki, M.Baba, S.Matsuyama, N.Hirakawa, K.Shibata, O.Iwamoto, A.J.Koning, G.M.Hale, M.B.Chadwick

Measurement and Theoretical Analysis of Neutron Elastic Scattering and Inelastic Reactions Leading to a Three-Body Final State for 6Li at 10 to 20 MeV

NUCLEAR REACTIONS 6Li(n, n), (n, n'), E=11.5, 14.1, 18.0 MeV; measured neutron spectra, σ(E, θ); deduced optical model parameters, breakup channel final state interaction features.

doi: 10.1103/PhysRevC.58.2205
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22439.


1998SU23      Nucl.Phys. A640, 147 (1998)

E.Sh.Sukhovitsky, S.Chiba, O.Iwamoto, Y.V.Porodzinsky

Nucleon Interaction with 12C Studied by the Soft-Rotator Model and a Limit on the Charge-Symmetry Breaking in the Nuclear Mean Field

NUCLEAR REACTIONS 12C(n, n), (n, n'), (p, p), (p, p'), E=20-50 MeV; calculated σ(θ); deduced optical model parameters, limit on charge-symmetry breaking. Soft-rotator model, coupled channels model.

doi: 10.1016/S0375-9474(98)00440-0
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1997CH39      Nucl.Phys. A624, 305 (1997)

S.Chiba, O.Iwamoto, Y.Yamanouti, M.Sugimoto, M.Mizumoto, K.Hasegawa, E.S.Sukhovitsky, Y.V.Porodzinsky, Y.Watanabe

Consistent Description of Collective Level Structure and Neutron Interation Data for 12C in the Framework of the Soft-Rotator Model

NUCLEAR REACTIONS 12C(n, n), (n, n'), E=28.2 MeV; measured σ(θ); deduced optical model parameters. 12C levels deduced quadrupole deformation parameter, B(E2). Soft-rotor model, coupled-channels analysis.

doi: 10.1016/S0375-9474(97)00474-0
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22160.


1997MA28      Phys.Rev. C55, 3152 (1997)

M.Matoba, K.Yamaguchi, K.Kurohmaru, O.Iwamoto, S.Widodo, A.Nohtomi, Y.Uozumi, T.Sakae, N.Koori, T.Maki, M.Nakano

Depletion of the 2f7/2 Neutron Hole State in 207Pb

NUCLEAR REACTIONS 208Pb(polarized p, d), E=65 MeV; measured σ(E, θ), A(y)(E, θ). 207Pb levels deduced J, π, spectroscopic factors. Enriched targets. DWBA analysis, shell model.

doi: 10.1103/PhysRevC.55.3152
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1665.


1996CH15      Phys.Rev. C54, 285 (1996)

S.Chiba, O.Iwamoto, T.Fukahori, K.Niita, T.Maruyama, T.Maruyama, A.Iwamoto

Analysis of Proton-Induced Fragment Production Cross Sections by the Quantum Molecular Dynamics Plus Statistical Decay Model

NUCLEAR REACTIONS, ICPND 56Fe(p, n), (p, 3n2p), (p, 3n3p), (p, 5n4p), (p, 3n6p), (p, 4n6p), (p, 5n6p), (p, 6n8p), E=threshold-5 GeV; 27Al(p, n3p), (p, 3n3p), (p, 5n5p), (p, 11n10p), E ≤ 6 GeV; analyzed residuals production σ(E). Quantum molecular dynamics plus statistical decay models.

doi: 10.1103/PhysRevC.54.285
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1996CH39      Phys.Rev. C54, 3302 (1996); Erratum Phys.Rev. C56, 1191 (1997)

S.Chiba, K.Niita, O.Iwamoto

Time Scale of the Preequilibrium Process in Intermediate-Energy Nucleon-Induced Reactions

NUCLEAR REACTIONS 56Fe(p, X), E=0.1-1.5 GeV; calculated two colliding nucleons average kinetic energy over average time bin of 5fm/c; deduced thermal equilibrium attainment time scale related features. Quantum molecular dynamics approach.

doi: 10.1103/PhysRevC.54.3302
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1996MA11      Phys.Rev. C53, 1792 (1996)

M.Matoba, K.Kurohmaru, O.Iwamoto, A.Nohtomi, Y.Uozumi, T.Sakae, N.Koori, H.Ohgaki, H.Ijiri, T.Maki, M.Nakano, H.M.Sen Gupta

(p, d) Reaction on 62Ni at 65 MeV

NUCLEAR REACTIONS 62Ni(polarized p, d), E=65 MeV; measured σ(Ed, θ), analyzing power vs Ed, θ. 61Ni deduced levels, J, π. DWBA analyses. Enriched target. Other data discussed, analyzed.

doi: 10.1103/PhysRevC.53.1792
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1685.


1995MA06      Nucl.Phys. A581, 21 (1995)

M.Matoba, O.Iwamoto, Y.Uozumi, T.Sakae, N.Koori, H.Ohgaki, H.Kugimiya, H.Ijiri, T.Maki, M.Nakano

Fragmentation of Neutron-Hole Strengths in 59Ni Observed in the 60Ni(p, d)59Ni Reaction at 65 MeV

NUCLEAR REACTIONS 60Ni(polarized p, d), E=65 MeV; measured σ(E, θ), A(y)(E, θ). 59Ni deduced levels, L, J, spectroscopic factors. DWBA analysis. Enriched target.

doi: 10.1016/0375-9474(94)00295-X
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1568.


1994IW01      Nucl.Phys. A576, 387 (1994)

O.Iwamoto, A.Nohtomi, Y.Uozumi, T.Sakae, M.Matoba, M.Nakano, T.Maki, N.Koori

Single-Particle States in 59Ni with 58Ni(d(pol), p)59Ni Reaction at 56 MeV and Neutron-Bound-State Complex Potentials

NUCLEAR REACTIONS 58Ni(polarized d, p), E=56 MeV; measured σ(θ), analyzing power. 59Ni levels deduced, spectroscopic factor, spreading width, neutron-bound-state complex potential.

doi: 10.1016/0375-9474(94)90250-X
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1586.


1994UO02      Nucl.Phys. A576, 123 (1994)

Y.Uozumi, O.Iwamoto, S.Widodo, A.Nohtomi, T.Sakae, M.Matoba, M.Nakano, T.Maki, N.Koori

Single-Particle Strengths Measured with 48Ca(d(pol), p)49Ca Reaction at 56 MeV

NUCLEAR REACTIONS 48Ca(polarized d, p), E=56 MeV; measured σ(θ), A(y)(θ). 49Ca deduced levels, L, J, C2S, occupation probability. DWBA analysis.

doi: 10.1016/0375-9474(94)90740-4
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1993HI12      Nucl.Phys. A564, 227 (1993)

K.Hisamochi, O.Iwamoto, A.Kisanuki, S.Budihardjo, S.Widodo, A.Nohtomi, Y.Uozumi, T.Sakae, M.Matoba, M.Nakano, T.Maki, S.Matsuki, N.Koori

Hole Strengths and Spreading Widths Observed in 92Mo(p(pol), d)91Mo Reaction at 65 MeV

NUCLEAR REACTIONS 92Mo(polarized p, d), E=65 MeV; measured σ(θ), A(y)(θ). 91Mo deduced levels, L, J, C2S, spreading widths, average energies. DWBA analysis.

doi: 10.1016/0375-9474(93)90519-4
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1523.


1993MA22      Phys.Rev. C48, 95 (1993)

M.Matoba, O.Iwamoto, Y.Uozumi, T.Sakae, N.Koori, T.Fujiki, H.Ohgaki, H.Ijiri, T.Maki, M.Nakano

40Ca(p, d)39Ca Reaction at 65 MeV

NUCLEAR REACTIONS 40Ca(polarized p, d), E=65 MeV; measured σ(θ), analyzed power vs θ. 39Ca deduced levels, J, π, C2S. DWBA analysis.

doi: 10.1103/PhysRevC.48.95
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1556.


1992MA61      J.Phys.Soc.Jpn. 61, 3827 (1992)

M.Matoba, T.Sakae, Y.Uozumi, O.Iwamoto, K.Hisamochi, H.Ijiri, Y.Watanabe, N.Koori, T.Maki, M.Nakano

Spreading Widths of Deeply Bound Hole States in Medium Weight Nuclei

NUCLEAR REACTIONS 40Ca, 58,60,62,64Ni(p, d), E=65 MeV; measured σ(θ). 57,59,61,63Ni deduced deeply bound hole states spreading widths. Spectroscopic factors strength function second moment, DWBA analyses, data on other nuclei included in analysis.

doi: 10.1143/JPSJ.61.3827
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