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NSR database version of April 11, 2024.

Search: Author = D.Kaji

Found 42 matches.

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2023NI04      Phys.Rev.Lett. 130, 132502 (2023)

T.Niwase, Y.X.Watanabe, Y.Hirayama, M.Mukai, P.Schury, A.N.Andreyev, T.Hashimoto, S.Iimura, H.Ishiyama, Y.Ito, S.C.Jeong, D.Kaji, S.Kimura, H.Miyatake, K.Morimoto, J.-Y.Moon, M.Oyaizu, M.Rosenbusch, A.Taniguchi, M.Wada

Discovery of New Isotope 241U and Systematic High-Precision Atomic Mass Measurements of Neutron-Rich Pa-Pu Nuclei Produced via Multinucleon Transfer Reactions

NUCLEAR REACTIONS 198Pt(238U, X)235U/236U/237U/238U/239U/240U/241U/242U/235Pa/236Pa/237Pa/239Np/240Np/241Np/239Pu/240Pu/241Pu/242Pu, E=10.75 MeV/nucleon; measured reaction products, TOF. 241U; deduced new isotope production. The KEK Isotope Separation System (KISS) for the nuclear spectroscopy of nuclides produced via MNT reactions, installed at the RIKEN Nishina Center.

ATOMIC MASSES 235,236,237,238,239,240,241,242U, 235,236,237Pa, 239,240,241Np, 239,240,241,242Pu; measured frequencies (the first excitation step laser wavelength), TOF; deduced mass excesses. Comparison with AME2020 evaluation.

doi: 10.1103/PhysRevLett.130.132502
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2021NI08      Phys.Rev. C 104, 044617 (2021)

T.Niwase, M.Wada, P.Schury, P.Brionnet, S.D.Chen, T.Hashimoto, H.Haba, Y.Hirayama, D.S.Hou, S.Iimura, H.Ishiyama, S.Ishizawa, Y.Ito, D.Kaji, S.Kimura, J.Liu, H.Miyatake, J.Y.Moon, K.Morimoto, K.Morita, D.Nagae, M.Rosenbusch, A.Takamine, T.Tanaka, Y.X.Watanabe, H.Wollnik, W.Xian, S.X.Yan

α-decay-correlated mass measurement of 206, 207g, mRa using an α-TOF detector equipped multireflection time-of-flight mass spectrograph system

ATOMIC MASSES 206,207,207mRa; measured time-of-flight spectra by α-decay-correlated mass spectroscopy using multireflection time-of-flight mass spectrograph (MRTOF-MS) system, with an α-TOF detector at SHE-Mass-II facility of RIBF-RIKEN; deduced mass excesses, and compared with evaluated data in AME2020. 207mRa; deduced excitation energy of the isomer, J, π. 206,207,207mRa isotopes produced in 159Tb(51V, X), E=306 MeV, followed by separation of evaporation residues using recoil ion separator GARIS-II at RIKEN.

RADIOACTIVITY 206,207mRa(α)[from 159Tb(51V, X), E=306 MeV at RIBF-RIKEN]; measured Eα, Iα, T1/2 of decays of 206Ra and 207mRa, excitation energy of the isomer; deduced α-reduced width, configuration. Systematics of spins, parities, Eα, T1/2, α-branching ratios, reduced α widths for 203,203m,205,205m,207,207mRa. 198,199Po, 202,203At, 202,203Rn, 206,207Fr, 207Ra; observed α spectra from decays.

doi: 10.1103/PhysRevC.104.044617
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Data from this article have been entered in the XUNDL database. For more information, click here.


2021SC14      Phys.Rev. C 104, L021304 (2021)

P.Schury, T.Niwase, M.Wada, P.Brionnet, S.Chen, T.Hashimoto, H.Haba, Y.Hirayama, D.S.Hou, S.Iimura, H.Ishiyama, S.Ishizawa, Y.Ito, D.Kaji, S.Kimura, H.Koura, J.J.Liu, H.Miyatake, J.-Y.Moon, K.Morimoto, K.Morita, D.Nagae, M.Rosenbusch, A.Takamine, Y.X.Watanabe, H.Wollnik, W.Xian, S.X.Yan

First high-precision direct determination of the atomic mass of a superheavy nuclide

ATOMIC MASSES 257Db; measured Eα, time-of flight, distribution of time-of-flight (ToF)-correlated α-decay events using multireflection time-of-flight mass spectrograph (MRTOF-MS) at RIKEN Ring Cyclotron facility; deduced A/q and mass excess for each of the 11 observed correlated events assigned to 257Db. Comparison with AME2016 evaluated data. 257Db isotope produced in 208Pb(51V, 2n), E=306 MeV reaction, followed by separation of fragments using GARIS-II separator.

doi: 10.1103/PhysRevC.104.L021304
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2020HA27      Phys.Rev. C 102, 024625 (2020)

H.Haba, F.Fan, D.Kaji, Y.Kasamatsu, H.Kikunaga, Y.Komori, N.Kondo, H.Kudo, K.Morimoto, K.Morita, M.Murakami, K.Nishio, J.P.Omtvedt, K.Ooe, Z.Qin, D.Sato, N.Sato, T.K.Sato, Y.Shigekawa, A.Shinohara, M.Takeyama, T.Tanaka, A.Toyoshima, K.Tsukada, Y.Wakabayashi, Y.Wang, S.Wulff, S.Yamaki, S.Yano, Y.Yasuda, T.Yokokita

Production of 266Bh in the 248Cm(23Na, 5n)266Bh reaction and its decay properties

RADIOACTIVITY 266,267Bh(α)[from 248Cm(23Na, 5n), (23Na, 4n), E=125.9, 130.6, 135.3 MeV]; 262Db(α), (SF)[from 266Bh α decay]; 263Db(EC), (α), (SF)[from 267Bh α decay]; 263Rf(SF)[from 263Db EC decay]; 258Lr(α), (EC)[from 262Db α decay]; 259Lr(α), (SF)[from 263Db α decay]; 258No(SF)[from 258Lr(EC); measured Eα, αα-, ααα- and α(SF)-correlations for 32 observed events using rotating wheel apparatus MANON and gas-jet transport system coupled to gas-filled recoil ion separator GARIS at RIKEN; deduced decay times, half-lives, decay branching ratios, production cross sections for 266Bh and 267Bh. Comparison with previous experimental results for half-lives and branching ratios for decay modes.

NUCLEAR REACTIONS 248Cm(23Na, 5n), (23Na, 4n), E=125.9, 130.6, 135.3 MeV; measured reaction products, σ(E) at RIKEN. Comparison with HIVAP calculations, and with previous experimental results.

doi: 10.1103/PhysRevC.102.024625
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2676. Data from this article have been entered in the XUNDL database. For more information, click here.


2020TA02      Phys.Rev.Lett. 124, 052502 (2020)

T.Tanaka, K.Morita, K.Morimoto, D.Kaji, H.Haba, R.A.Boll, N.T.Brewer, S.Van Cleve, D.J.Dean, S.Ishizawa, Y.Ito, Y.Komori, K.Nishio, T.Niwase, B.C.Rasco, J.B.Roberto, K.P.Rykaczewski, H.Sakai, D.W.Stracener, K.Hagino

Study of Quasielastic Barrier Distributions as a Step towards the Synthesis of Superheavy Elements with Hot Fusion Reactions

NUCLEAR REACTIONS 248Cm(22Ne, X), (26Mg, X), 238U(48Ca, X), E(cm)=165.1, 203.7 MeV; measured reaction products; deduced σ. Comparison with available data.

doi: 10.1103/PhysRevLett.124.052502
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2018IT04      Phys.Rev.Lett. 120, 152501 (2018)

Y.Ito, P.Schury, M.Wada, F.Arai, H.Haba, Y.Hirayama, S.Ishizawa, D.Kaji, S.Kimura, H.Koura, M.MacCormick, H.Miyatake, J.Y.Moon, K.Morimoto, K.Morita, M.Mukai, I.Murray, T.Niwase, K.Okada, A.Ozawa, M.Rosenbusch, A.Takamine, T.Tanaka, Y.X.Watanabe, H.Wollnik, S.Yamaki

First Direct Mass Measurements of Nuclides around Z=100 with a Multireflection Time-of-Flight Mass Spectrograph

NUCLEAR REACTIONS 232Th(19F, 5n)246Es, E=99.6, 103 MeV;238U(18O, 5n)251Fm, E=93.9 MeV; 203Tl(48Ca, 2n)249Md, E=215 MeV; 205Tl(48Ca, 3n)250Md, E=223 MeV; 205Tl(48Ca, 2n)251Md, E=215 MeV; 238U(19F, 5n)252md, E=98.6 MeV; 208Pb(48Ca, 2n)254No, E=219 MeV; measured reaction products, TOF; deduced mass excesses. Comparison with available data.

ATOMIC MASSES 253,254Lr, 257,258Db, 261,262Bh, 266Mt; analyzed available data; deduced mass excesses.

doi: 10.1103/PhysRevLett.120.152501
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2018KI21      Int.J. Mass Spectrom. 430, 134 (2018)

S.Kimura, Y.Ito, D.Kaji, P.Schury, M.Wada, H.Haba, T.Hashimoto, Y.Hirayama, M.MacCormick, H.Miyatake, J.Y.Moon, K.Morimoto, M.Mukai, I.Murray, A.Ozawa, M.Rosenbusch, H.Schatz, A.Takamine, T.Tanaka, Y.X.Watanabe, H.Wollnik

Atomic masses of intermediate-mass neutron-deficient nuclei with relative uncertainty down to 35-ppb via multireflection time-of-flight mass spectrograph

ATOMIC MASSES 63Cu, 64,65,66Zn, 65Ga, 65,66,67Ge, 67As, 78,81Br, 80Rb, 79Sr; measured frequencies, TOF; deduced masses, new mass excess values. Comparison with AME16 evaluations.

NUCLEAR REACTIONS S(36Ar, X)63Cu/64Zn/65Zn/66Zn/65Ga/65Ge/66Ge/67Ge/67As/78Br/81Br/80Rb/79Sr, E=3.30 MeV/nucleon; measured reaction products; deduced σ. Comparison with theoretical calculations of fusion-evaporation reactions.

doi: 10.1016/j.ijms.2018.05.001
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2018RO14      Phys.Rev. C 97, 064306 (2018)

M.Rosenbusch, Y.Ito, P.Schury, M.Wada, D.Kaji, K.Morimoto, H.Haba, S.Kimura, H.Koura, M.MacCormick, H.Miyatake, J.Y.Moon, K.Morita, I.Murray, T.Niwase, A.Ozawa, M.Reponen, A.Takamine, T.Tanaka, H.Wollnik

New mass anchor points for neutron-deficient heavy nuclei from direct mass measurements of radium and actinium isotopes

ATOMIC MASSES 210,211,212,214Ra, 210,211,212,213,214Ac; measured time of flight, and mass excess using multireflection time-of-flight mass spectrograph (MRTOF-MS) at superheavy element (SHE) mass facility of RIKEN-KEK, and using gas-filled recoil ion separator GARIS-II at RIKEN. Comparison with values from AME-2016. Ra and Ac isotopes produced in 169Tm(48Ca, X), E=5, 6 MeV/nucleon reaction at RIKEN. Z=82-92, N=121-129; systematics of S(2n) values.

doi: 10.1103/PhysRevC.97.064306
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2017KA31      J.Phys.Soc.Jpn. 86, 085001 (2017)

D.Kaji, K.Morimoto, H.Haba, Y.Wakabayashi, M.Takeyama, S.Yamaki, Y.Komori, S.Yanou, S.-i.Goto, K.Morita

Decay Measurement of 283Cn Produced in the 238U(48Ca, 3n) Reaction Using GARIS-II

NUCLEAR REACTIONS 238U(48Ca, 3n), E=251.8 MeV; measured reaction products; deduced σ. Comparison with available data.

RADIOACTIVITY 283Cn(α), (SF), 279Ds(SF); measured decay products, Eα, Iα; deduced T1/2. Comparison with available data.

doi: 10.7566/JPSJ.86.085001
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2542.


2017KA66      J.Phys.Soc.Jpn. 86, 034201 (2017)

D.Kaji, K.Morita, K.Morimoto, H.Haba, M.Asai, K.Fujita, Z.Gan, H.Geissel, H.Hasebe, S.Hofmann, M.H.Huang, Y.Komori, L.Ma, J.Maurer, M.Murakami, M.Takeyama, F.Tokanai, T.Tanaka, Y.Wakabayashi, T.Yamaguchi, S.Yamaki, A.Yoshida

Study of the Reaction 48Ca + 248Cm → 296Lv* at RIKEN-GARIS

RADIOACTIVITY 292Lv, 288Fl, 284Cn, 293Lv, 289Fl, 285Cn, 294Lv, 290Fl(α) [from 248Cm(48Ca, X)296Lv, E=261.6, 258.0 MeV]; measured decay products, Eα, Iα; deduced decay branches and ratios.

NUCLEAR REACTIONS 248Cm(48Ca, X)296Lv, E=261.6, 258.0 MeV; measured reaction products; deduced σ. Comparison with available data.

doi: 10.7566/jpsj.86.034201
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2538.


2017SC02      Phys.Rev. C 95, 011305 (2017)

P.Schury, M.Wada, Y.Ito, D.Kaji, F.Arai, M.MacCormick, I.Murray, H.Haba, S.Jeong, S.Kimura, H.Koura, H.Miyatake, K.Morimoto, K.Morita, A.Ozawa, M.Rosenbusch, M.Reponen, P.-A.Soderstrom, A.Takamine, T.Tanaka, H.Wollnik

First online multireflection time-of-flight mass measurements of isobar chains produced by fusion-evaporation reactions: Toward identification of superheavy elements via mass spectroscopy

ATOMIC MASSES 204,205,206Fr, 204,205,206Rn, 204,205,206At, 204,205Po, 205Bi; measured time-of-flight spectra, precise atomic masses with reference to that of 205Fr using GARIS-II recoil ion separator GARIS-II and multireflection time-of-flight mass spectrographs (MRTOF-MS) at RILAC-RIKEN facility. Isotopes produced in 165Ho, 169Tm(40Ar, X), E=4.825, 5.16 MeV/nucleon. Comparison with AME-2012 values, and previous experimental values.

doi: 10.1103/PhysRevC.95.011305
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2017WI13      Phys.Rev. C 96, 044315 (2017)

G.L.Wilson, M.Takeyama, A.N.Andreyev, B.Andel, S.Antalic, W.N.Catford, L.Ghys, H.Haba, F.P.Hessberger, M.Huang, D.Kaji, Z.Kalaninova, K.Morimoto, K.Morita, M.Murakami, K.Nishio, R.Orlandi, A.G.Smith, K.Tanaka, Y.Wakabayashi, S.Yamaki

β-delayed fission of 230Am

RADIOACTIVITY 230Am(β+F)[from 207Pb(27Al, 4n), E=145 MeV]; measured fission fragments, double-fold fission fragment coincidences, total energy spectrum, α-α correlations using the GARIS recoil-ion separator at RIKEN. Analyzed TKE(230Pu); deduced T1/2 for 230Am, lower limit of β-delayed fission probability of 230Am. Systematics of β+-delayed fission probabilities for 230,232,234Am, 240,242,244,246,248Es, 236,238,240Bk nuclei. 230Am found to have the highest lower limit for β+-delayed fission probability so far among all the known nuclei decaying by this mode.

doi: 10.1103/PhysRevC.96.044315
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016KA13      J.Phys.Soc.Jpn. 85, 015002 (2016)

D.Kaji, K.Morimoto, H.Haba, E.Ideguchi, H.Koura, K.Morita

Decay Properties of New Isotopes 234Bk and 230Am, and Even-Even Nuclides 234Cm and 230Pu

RADIOACTIVITY 234Bk(α), (EC) [from 197Au(40Ar, 3n)234Bk, E=89.5 MeV]; measured decay products, Eα, Iα; deduced T1/2. Comparison with available data.

doi: 10.7566/JPSJ.85.015002
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Data from this article have been entered in the XUNDL database. For more information, click here.


2014HA04      Phys.Rev. C 89, 024618 (2014)

H.Haba, M.Huang, D.Kaji, J.Kanaya, Y.Kudou, K.Morimoto, K.Morita, M.Murakami, K.Ozeki, R.Sakai, T.Sumita, Y.Wakabayashi, A.Yoneda, Y.Kasamatsu, Y.Kikutani, Y.Komori, K.Nakamura, A.Shinohara, H.Kikunaga, H.Kudo, K.Nishio, A.Toyoshima, K.Tsukada

Production of 262Db in the 248Cm(19F, 5n)262Db reaction and decay properties of 262Db and 258Lr

NUCLEAR REACTIONS 248Cm(19F, 5n)262Db, E=97.4, 103.1 MeV; measured production σ of 262Db, correlated α-α and α-SF decay chains using rotating wheel apparatus MANON for α and SF spectrometry at RIKEN facility. Comparison with HIVAP model calculations, and with previous experimental and theoretical results. No observation of 263Db and 259Lr correlated chains through possible 248Cm(19F, 4n) reaction channel.

RADIOACTIVITY 262Db(α), (SF)[from 248Cm(19F, 5n), E=97.4, 103.1 MeV]; 258Lr(α), (EC)[from 262Db α decay]; measured Eα, Iα, half-lives, α-α, α-SF correlations, branching ratios for α, SF and EC modes. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.89.024618
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2450. Data from this article have been entered in the XUNDL database. For more information, click here.


2013MU08      Phys.Rev. C 88, 024618 (2013)

M.Murakami, S.Goto, H.Murayama, T.Kojima, H.Kudo, D.Kaji, K.Morimoto, H.Haba, Y.Kudou, T.Sumita, R.Sakai, A.Yoneda, K.Morita, Y.Kasamatsu, H.Kikunaga, T.K.Sato

Excitation functions for production of Rf isotopes in the 248Cm + 18O reaction

NUCLEAR REACTIONS 248Cm(18O, xn)260Rf/261Rf/261mRf/262Rf, E=88.2, 90.2, 94.8, 101.3 MeV; measured reaction products, Eα, Iα, production σ(E), half-lives using GARIS separator at RIKEN Heavy-Ion Linear Accelerator facility. Beam on-off method. Comparison with previous experimental data, and with theoretical predictions using HIVAP computer code.

RADIOACTIVITY 260,261,261m,262Rf(α), (SF)[from 248Cm(18O, xn), E=88.2, 90.2, 94.8, 101.3 MeV]; 257No(α)[from 261Rf α decay]; measured Eα, Iα, α-α correlations, SF-events, half-lives; deduced excitation functions.

doi: 10.1103/PhysRevC.88.024618
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2438. Data from this article have been entered in the XUNDL database. For more information, click here.


2013SU04      J.Phys.Soc.Jpn. 82, 024202 (2013)

T.Sumita, K.Morimoto, D.Kaji, H.Haba, K.Ozeki, R.Sakai, A.Yoneda, A.Yoshida, H.Hasebe, K.Katori, N.Sato, Y.Wakabayashi, S.-i.Mitsuoka, S.-i.Goto, M.Murakami, Y.Kariya, F.Tokanai, K.Mayama, M.Takeyama, T.Moriya, E.Ideguchi, T.Yamaguchi, H.Kikunaga, J.Chiba, K.Morita

New Result on the Production of 277Cn by the 208Pb + 70Zn Reaction

NUCLEAR REACTIONS 208Pb(70Zn, n)277Cn, E=347.5, 351.5, 355.5 MeV; 209Bi(70Zn, n)278Nh, E=347.5, 351.5, 355.5 MeV; measured reaction products, Eα, Iα; deduced σ. Comparison with similar nuclei.

RADIOACTIVITY 277Cn, 273Ds, 269Hs, 265Sg, 261Rf, 257No(α); measured decay products, Eα, Iα; deduced T1/2. Comparison with available data.

doi: 10.7566/JPSJ.82.024202
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2406.


2012HA05      Phys.Rev. C 85, 024611 (2012)

H.Haba, D.Kaji, Y.Kudou, K.Morimoto, K.Morita, K.Ozeki, R.Sakai, T.Sumita, A.Yoneda, Y.Kasamatsu, Y.Komori, A.Shinohara, H.Kikunaga, H.Kudo, K.Nishio, K.Ooe, N.Sato, K.Tsukada

Production of 265Sg in the 248Cm(22Ne, 5n)265Sg reaction and decay properties of two isomeric states in 265Sg

NUCLEAR REACTIONS 248Cm(22Ne, 5n)265Sg, E=228.8 MeV; measured evaporation residues, excitation function, production cross sections for isomers, αα, ααα and α(SF) correlations using RIKEN gas-filled recoil-ion separator GARIS. Comparison of cross sections with other 5n evaporation channel reactions, and HIVAP calculations.

RADIOACTIVITY 265,265mSg[from 248Cm(22Ne, 5n), E=228.8 MeV]; 261Rf, 261mRf(α), (SF)[from 265Sg α decay]; measured E(α), E(SF), I(α), T1/2, αα-coin, α(fragment) coin; deduced α and SF decay branching ratios from data for 79 α-α decay chains. 214Po, 252,253,254,255Fm, 257No(α); measured Eα.

doi: 10.1103/PhysRevC.85.024611
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2371.


2012MO25      J.Phys.Soc.Jpn. 81, 103201 (2012)

K.Morita, K.Morimoto, D.Kaji, H.Haba, K.Ozeki, Y.Kudou, T.Sumita, Y.Wakabayashi, A.Yoneda, K.Tanaka, S.Yamaki, R.Sakai, T.Akiyama, S.-i.Goto, H.Hasebe, M.Huang, T.Huang, E.Ideguchi, Y.Kasamatsu, K.Katori, Y.Kariya, H.Kikunaga, H.Koura, H.Kudo, A.Mashiko, K.Mayama, S.-ic.Mitsuoka, T.Moriya, M.Murakami, H.Murayama, S.Namai, A.Ozawa, N.Sato, K.Sueki, M.Takeyama, F.Tokanai, T.Yamaguchi, A.Yoshida

New Result in the Production and Decay of an Isotope, 278113, of the 113th Element

NUCLEAR REACTIONS 209Bi(70Zn, X)278Nh, E=349 MeV; measured reaction products, Eα, Iα. 274Rg, 270Mt, 266Bh, 262Db, 258Lr; deduced T1/2. Comparison with available data.

doi: 10.1143/JPSJ.81.103201
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2388.


2011BE57      J.Phys.:Conf.Ser. 312, 092017 (2011)

J.S.Berryman, R.M.Clark, K.E.Gregorich, J.M.Allmond, D.L.Bleuel, R.J.Cooper, M.Cromaz, M.A.Deleplanque, I.Dragojevic, J.Dvorak, P.A.Ellison, P.Fallon, M.A.Garcia, J.M.Gates, S.Gros, O.Gothe, H.B.Jeppesen, D.Kaji, I.Y.Lee, A.O.Macchiavelli, K.Morimoto, H.Nitsche, S.Paschalis, M.Petri, J.Qian, L.Stavsetra, F.S.Stephens, M.A.Stoyer, T.J.Ross, H.Watanabe, M.Wiedeking

Nuclear spectroscopy of the heaviest elements: studies of 254No, 257Rf, and 261Sg

NUCLEAR REACTIONS 208Pb(48Ca, 2n), E=221 MeV;208Pb(50Ti, n), E=238 MeV;208Pb(54Cr, n), E=261 MeV; measured Eγ, Iγ using HPGe, recoils using MWPC, Eα, Iα, E(e), I(e), eγ-coin. 254No, 257Rf deduced levels, J, π, γ transitions, isomeric transition T1/2, bands, 257Rf α-decay T1/2, 254No g-factor.

doi: 10.1088/1742-6596/312/9/092017
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2011HA13      Phys.Rev. C 83, 034602 (2011)

H.Haba, D.Kaji, H.Kikunaga, Y.Kudou, K.Morimoto, K.Morita, K.Ozeki, T.Sumita, A.Yoneda, Y.Kasamatsu, Y.Komori, K.Ooe, A.Shinohara

Production and decay properties of the 1.9-s isomeric state in 261Rf

RADIOACTIVITY 261Rf, 261mRf(α), (SF)[from 248Cm(18O, 5n), E=93.1, 95.1 MeV]; measured Eα, Iα, α-α correlations, SF-events, α and SF branching ratios, half-lives, σ of 261Rf g.s. and 261Rf isomer. 257No(α); measured Eα, half-life. 214Po, 254Fm, 255,259Rf; measured Eα.

NUCLEAR REACTIONS 248Cm(18O, 5n)261Rf, E=93.1, 95.1 MeV; measured σ, isomer σ ratio, half-lives.

doi: 10.1103/PhysRevC.83.034602
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2324. Data from this article have been entered in the XUNDL database. For more information, click here.


2011SA41      J.Phys.Soc.Jpn. 80, 094201 (2011)

N.Sato, H.Haba, T.Ichikawa, D.Kaji, Y.Kudou, K.Morimoto, K.Morita, K.Ozeki, T.Sumita, A.Yoneda, E.Ideguchi, H.Koura, A.Ozawa, T.Shinozuka, T.Yamaguchi, A.Yoshida

Production and Decay Properties of 264Hs and 265Hs

NUCLEAR REACTIONS 208Pb(58Fe, 2n), 207,208Pb(58Fe, n), E(cm)=200-227 MeV; measured reaction products; deduced σ.

RADIOACTIVITY 264,265Hs(α), (SF) [from 208Pb(58Fe, 2n), 207,208Pb(58Fe, n), E(cm)=200-227 MeV]; measured Eα, Iα; deduced α-particle energies, α and spontaneous fission branches, Q-values, T1/2.

doi: 10.1143/JPSJ.80.094201
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2360.


2010CL01      Phys.Lett. B 690, 19 (2010)

R.M.Clark, K.E.Gregorich, J.S.Berryman, M.N.Ali, J.M.Allmond, C.W.Beausang, M.Cromaz, M.A.Deleplanque, I.Dragojevic, J.Dvorak, P.A.Ellison, P.Fallon, M.A.Garcia, J.M.Gates, S.Gros, H.B.Jeppesen, D.Kaji, I.Y.Lee, A.O.Macchiavelli, K.Morimoto, H.Nitsche, S.Paschalis, M.Petri, L.Stavsetra, F.S.Stephens, H.Watanabe, M.Wiedeking

High-K multi-quasiparticle states in 254No

RADIOACTIVITY 254No(IT) [from 208Pb(48Ca, 2n), E=221 MeV]; measured Eγ, Iγ, γ-particle-coin.; deduced J, π, level energies, rotational bands, decay of isomer state.

doi: 10.1016/j.physletb.2010.04.079
Citations: PlumX Metrics

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


2009HA49      Chem.Lett. 38, 426 (2009)

H.Haba, D.Kaji, Y.Komori, Y.Kudou, K.Morimoto, K.Morita, K.Ooe, K.Ozeki, N.Sato, A.Shinohara, A.Yoneda

RIKEN Gas-filled Recoil Ion Separator (GARIS) as a Promising Interface for Superheavy Element Chemistry-Production of Element 104, 261Rf, Using the GARIS/Gas-jet System

RADIOACTIVITY 261Rf, 257No(α) [from 248Cm(18O, 5n)261Rf, E=95.5 MeV]; measured decay products, Eα, Iα; deduced 261Rf for chemical studies in the 248Cm-based hot fusion reaction using the gas-jet transport system coupled to gas-filled recoil ion separator GARIS.

doi: 10.1246/cl.2009.426
Citations: PlumX Metrics


2009MO12      J.Phys.Soc.Jpn. 78, 064201 (2009)

K.Morita, K.Morimoto, D.Kaji, H.Haba, K.Ozeki, Y.Kudou, N.Sato, T.Sumita, A.Yoneda, T.Ichikawa, Y.Fujimori, S.Goto, E.Ideguchi, Y.Kasamatsu, K.Katori, Y.Komori, H.Koura, H.Kudo, K.Ooe, A.Ozawa, F.Tokanai, K.Tsukada, T.Yamaguchi, A.Yoshida

Decay Properties of 266Bh and 262Db Produced in the 248Cm + 23Na Reaction

NUCLEAR REACTIONS 248Cm(23Na, 4n), (23Na, 5n), E=126, 130, 132 MeV; measured yields.

RADIOACTIVITY 266Bh(α); measured Eα, Iα.

doi: 10.1143/JPSJ.78.064201
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2176.


2008HA41      J.Nucl.Radiochem.Sci. 9, 27 (2008)

H.Haba, H.Kikunaga, D.Kaji, T.Akiyama, K.Morimoto, K.Morita, T.Nanri, K.Ooe, N.Sato, A.Shinohara, D.Suzki, T.Takabe, I.Yamazaki, A.Yokoyama, A.Yoneda

Performance of the Gas-jet Transport System Coupled to the RIKEN Gas-filled Recoil Ion Separator GARIS for the 238U(22Ne, 5n)255No Reaction

RADIOACTIVITY 255No(α), (EC), 255Md(EC) [from 238U(22Ne, 5n)255No, E=113.8 MeV]; measured decay products, Eα, Iα; deduced α-particle energies, T1/2. Comparison with available data. The gas-jet transport system coupled to the RIKEN gas-filled recoil ion separator GARIS.

doi: 10.14494/jnrs.9.27
Citations: PlumX Metrics


2007HA29      Eur.Phys.J. D 45, 81 (2007)

H.Haba, T.Akiyama, D.Kaji, H.Kikunaga, T.Kuribayashi, K.Morimoto, K.Morita, K.Ooe, N.Sato, A.Shinohara, T.Takabe, Y.Tashiro, A.Toyoshima, A.Yoneda, T.Yoshimura

Startup of superheavy element chemistry at RIKEN

NUCLEAR REACTIONS 169Tm(40Ar, 3n), E=170 MeV; 208Pb(40Ar, 3n), E=199 MeV; 238U(22Ne, 5n), E=105.9-120.9 MeV; 248Cm(18O, 5n), E=94.4 MeV; measured Eα, Iα, superheavy element production yields using a gas filled recoil separator.

doi: 10.1140/epjd/e2007-00135-4
Citations: PlumX Metrics


2007HA58      J.Nucl.Radiochem.Sci. 8, 55 (2007)

H.Haba, D.Kaji, H.Kikunaga, T.Akiyama, N.Sato, K.Morimoto, A.Yoneda, K.Morita, T.Takabe, A.Shinohara

Development of Gas-jet Transport System Coupled to the RIKEN Gas-filled Recoil Ion Separator GARIS for Superheavy Element Chemistry

RADIOACTIVITY 206Fr, 245Fm [from 169Tm, 208Pb(40Ar, 3n), E not given]; measured decay products, Eα, Iα; deduced α-particle energies, T1/2. Comparison with available data. The gas-filled recoil ion separator GARIS at the RIKEN Linear Accelerator.

doi: 10.14494/jnrs2000.8.55
Citations: PlumX Metrics


2007MO09      J.Phys.Soc.Jpn. 76, 043201 (2007)

K.Morita, K.Morimoto, D.Kaji, T.Akiyama, S.Goto, H.Haba, E.Ideguchi, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, T.Suda, K.Sueki, F.Tokanai, T.Yamaguchi, A.Yoneda, A.Yoshida

Experiment on Synthesis of an Isotope 277112 by 208Pb + 70Zn Reaction

NUCLEAR REACTIONS 208Pb(70Zn, n), E=349.5 MeV; measured delayed Eα, αα-, (recoil)α-coin; deduced production σ. Gas-filled separator.

RADIOACTIVITY 277Cn, 273Ds, 269Hs, 265Sg(α) [from 208Pb(70Zn, n) and subsequent decay]; measured Eα, T1/2. Gas-filled separator.

doi: 10.1143/JPSJ.76.043201
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2054.


2007MO43      J.Phys.Soc.Jpn. 76, 045001 (2007)

K.Morita, K.Morimoto, D.Kaji, T.Akiyama, S.-i.Goto, H.Haba, E.Ideguchi, K.Katori, H.Koura, H.Kikunaga, H.Kudo, T.Ohnishi, A.Ozawa, N.Sato, T.Suda, K.Sueki, F.Tokanai, T.Yamaguchi, A.Yoneda, A.Yoshida

Observation of Second Decay Chain from 278113

RADIOACTIVITY 278Nh, 274Rg, 270Mt, 266Bh, 262Db(α) [from 209Bi(70Zn, n)278Nh, E=353 MeV]; measured decay products, Eα, Iα; deduced T1/2, σ.

doi: 10.1143/JPSJ.76.045001
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2055.


2004MO14      Nucl.Phys. A734, 101 (2004)

K.Morita, K.Morimoto, D.Kaji, S.Goto, H.Haba, E.Ideguchi, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, J.C.Peter, T.Suda, K.Sueki, I.Tanihata, F.Tokanai, H.Xu, A.V.Yeremin, A.Yoneda, A.Yoshida, Y.-L.Zhao, T.Zheng

Status of heavy element research using GARIS at RIKEN

NUCLEAR REACTIONS 208Pb(64Ni, n), E=310, 313, 316, 320 MeV; 209Bi(64Ni, n), E=320, 323, 326 MeV; measured σ.

RADIOACTIVITY 272Rg, 271Ds, 268Mt, 267Hs, 264Bh, 263Sg, 260Db, 259Rf, 256Lr, 255No, 252Md(α) [from 208Pb, 209Bi(64Ni, n) and subsequent decay]; measured Eα, T1/2.

doi: 10.1016/j.nuclphysa.2004.01.019
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1918.


2004MO26      J.Phys.Soc.Jpn. 73, 1738 (2004)

K.Morita, K.Morimoto, D.Kaji, H.Haba, E.Ideguchi, J.C.Peter, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, T.Suda, K.Sueki, I.Tanihata, H.Xu, A.V.Yeremin, A.Yoneda, A.Yoshida, Y.-L.Zhao, T.Zheng, S.Goto, F.Tokanai

Production and Decay Properties of 272Rg and its Daughter Nuclei

NUCLEAR REACTIONS 209Bi(64Ni, n), E=320, 323, 326 MeV; measured σ.

RADIOACTIVITY 272Rg, 268Mt, 264Bh, 260Db, 256Lr(α) [from 209Bi(64Ni, n) and subsequent decay]; measured Eα, T1/2.

doi: 10.1143/JPSJ.73.1738
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1919.


2004MO27      Nucl.Phys. A738, 129 (2004)

K.Morimoto, K.Morita, D.Kaji, S.Goto, H.Haba, E.Ideguchi, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, J.C.Peter, T.Suda, K.Sueki, I.Tanihata, F.Tokanai, H.Xu, A.V.Yeremin, A.Yoneda, A.Yoshida, T.-L.Zhao, T.Zheng

Status of super heavy element research using GARIS at RIKEN

NUCLEAR REACTIONS 208Pb, 209Bi(64Ni, n), E=310-326 MeV; measured excitation functions.

RADIOACTIVITY 271Ds, 267Hs, 263Sg, 259Rf, 255No(α) [from 208Pb(64Ni, n) and subsequent decay]; 272Rg, 268Mt, 264Bh, 260Db, 256Lr(α) [from 209Bi(64Ni, n) and subsequent decay]; measured Eα, T1/2.

doi: 10.1016/j.nuclphysa.2004.04.021
Citations: PlumX Metrics

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


2004MO40      Eur.Phys.J. A 21, 257 (2004)

K.Morita, K.Morimoto, D.Kaji, H.Haba, E.Ideguchi, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, T.Suda, K.Sueki, I.Tanihata, H.Xu, A.V.Yeremin, A.Yoneda, A.Yoshida, Y.-L.Zhao, T.Zheng

Production and decay of the isotope 271Ds (Z = 110)

NUCLEAR REACTIONS 208Pb(64Ni, n), E=308, 311, 314, 318 MeV; measured excitation function.

RADIOACTIVITY 271Ds, 267Hs, 263Sg, 259Rf, 255No(α) [from 208Pb(64Ni, n) and subsequent decay]; measured Eα, T1/2. 271Ds, 267Hs deduced isomeric states.

doi: 10.1140/epja/i2003-10205-1
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1918. Data from this article have been entered in the XUNDL database. For more information, click here.


2004MO42      J.Phys.Soc.Jpn. 73, 2593 (2004)

K.Morita, K.Morimoto, D.Kaji, T.Akiyama, S.Goto, H.Haba, E.Ideguchi, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, T.Suda, K.Sueki, H.Xu, T.Yamaguchi, A.Yoneda, A.Yoshida, Y.Zhao

Experiment on the Synthesis of Element 113 in the Reaction 209Bi(70Zn, n)278113

NUCLEAR REACTIONS 209Bi(70Zn, n), E=349 MeV; measured delayed (recoil)α-, αα-coin; deduced production σ. Gas-filled recoil separator.

RADIOACTIVITY 278Nh, 274Rg, 270Mt, 266Bh(α) [from 209Bi(70Zn, n) and subsequent decay]; measured Eα, T1/2. Gas-filled recoil separator.

doi: 10.1143/JPSJ.73.2593
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1920.


2004MO43      Acta Phys.Hung.N.S. 19, 53 (2004)

K.Morita, K.Morimoto, D.Kaji, Yu.L.Zhao, A.Yoshida, T.Suda, A.Yoneda, T.Ohnishi, H.Haba, E.Ideguchi, H.S.Xu, T.Zheng, H.Kudo, K.Sueki, K.Katori, I.Tanihata

Status of Heavy Element Research Using a Gas-Filled Recoil Separator at RIKEN

NUCLEAR REACTIONS 208Pb(64Ni, n), E=311.2, 314.2; measured σ. Gas-filled recoil separator.

RADIOACTIVITY 271Ds, 267Hs, 263Sg, 259Rf, 255No(α) [from 208Pb(64Ni, n) and subsequent decay]; measured Eα, T1/2. Gas-filled recoil separator.

doi: 10.1556/APH.19.2004.1-2.8
Citations: PlumX Metrics


2003FU10      Nucl.Phys. A718, 688c (2003)

Zs.Fulop, L.Bartha, Gy.Gyurky, E.Somorjai, S.Kubono, H.Kudo, D.Kaji

The half-life of 148Gd

RADIOACTIVITY 148Gd(α); measured T1/2.

doi: 10.1016/S0375-9474(03)00889-3
Citations: PlumX Metrics


2003GO01      J.Radioanal.Nucl.Chem. 255, 73 (2003)

S.Goto, D.Kaji, I.Nishinaka, Y.L.Nagame, S.Ichikawa, K.Tsukada, M.Asai, H.Haba, S.Mitsuoka, K.Nishio, M.Sakama, Y.Zhao, K.Sueki, K.Tanikawa, K.Takamiya, H.Kudo, H.Nakahara

Characteristics of the asymmetric mass distribution in proton-induced fission of actinides

NUCLEAR REACTIONS 232Th, 233,235,238U(p, F), E=13, 15 MeV; measured fission fragment mass distributions; deduced fragment shell structure effects.

doi: 10.1023/A:1022271529219
Citations: PlumX Metrics


2003KA06      J.Radioanal.Nucl.Chem. 255, 77 (2003)

D.Kaji, K.Morita, K.Morimoto, Y.L.Zhao, A.Yoneda, T.Suda, A.Yoshida, H.Kudo, K.Katori, I.Tanihata

Status of heavy element synthesis in RIKEN

doi: 10.1023/A:1022223613289
Citations: PlumX Metrics


2002GO43      J.Nucl.Radiochem.Sci. 3, No 1, 63 (2002)

S.Goto, D.Kaji, I.Nishinaka, Y.Nagame, S.Ichikawa, K.Tsukada, M.Asai, H.Haba, S.Mitsuoka, K.Nishio, M.Sakama, Y.L.Zhao, K.Sueki, M.Tanikawa, K.Takamiya, H.Kudo, H.Nakahara

Systematic Studies of Asymmetric Mass Distributions in Proton-induced Fission of Actinides

NUCLEAR REACTIONS 239,242,244Pu(p, F), E=13 MeV; measured fission fragment kinetic energy and mass distributions; deduced shell effects.


2002KA81      J.Nucl.Radiochem.Sci. 3, No 2, 7 (2002)

D.Kaji, S.Goto, M.Fujita, T.Shinozuka, M.Fujioka, H.Kudo

Most Probable Charge of Fission Products in Proton-Induced Fission of 238U and 232Th

NUCLEAR REACTIONS 238U, 232Th(p, F), E=13-24 MeV; measured fission fragment charge distributions.


2001NA46      Radiochim.Acta 89, 681 (2001)

Y.Nagame, Y.L.Zhao, I.Nishinaka, S.Goto, D.Kaji, M.Tanikawa, K.Tsukada, M.Asai, H.Haba, M.Sakama, S.Ichikawa, K.Sueki, H.Kudo, H.Nakahara

Characteristics of Two Fission Modes

NUCLEAR REACTIONS 232Th, 238U, 244Pu, 248Cm(p, F), E=11-16 MeV; measured fission fragments total kinetic energies, mass yield distributions; deduced two fission modes, deformation effects.


1999GO06      J.Radioanal.Nucl.Chem. 239, 109 (1999)

S.Goto, D.Kaji, H.Kudo, M.Fujita, T.Shinozuka, M.Fujioka

Isomeric Yield Ratios of Fission Products in Proton-Induced Fission of 232Th

NUCLEAR REACTIONS 232Th(p, F)84Br/99Nb/116Ag/121Cd/132Sb/132I/134I/135Xe/136I/138Cs/148Pr, E=13-26 MeV; measured fission fragments isomeric yield ratios; deduced shell effects. On-line isotope separator.

doi: 10.1007/BF02349539
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO0830.


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