NSR Query Results


Output year order : Descending
Format : Normal

NSR database version of April 11, 2024.

Search: Author = M.Wada

Found 59 matches.

Back to query form



2024XI06      Phys.Rev. C 109, 035804 (2024)

W.Xian, S.Chen, S.Nikas, M.Rosenbusch, M.Wada, H.Ishiyama, D.Hou, S.Iimura, S.Nishimura, P.Schury, A.Takamine, S.Yan, F.Browne, P.Doornenbal, F.Flavigny, Y.Hirayama, Y.Ito, S.Kimura, T.M.Kojima, J.Lee, J.Liu, H.Miyatake, S.Michimasa, J.Y.Moon, S.Naimi, T.Niwase, T.Sonoda, D.Suzuki, Y.X.Watanabe, V.Werner, K.Wimmer, H.Wollnik

Mass measurements of neutron-rich A ≈ 90 nuclei constrain element abundances

doi: 10.1103/PhysRevC.109.035804
Citations: PlumX Metrics


2023HO11      Phys.Rev. C 108, 054312 (2023)

D.S.Hou, A.Takamine, M.Rosenbusch, W.D.Xian, S.Iimura, S.D.Chen, M.Wada, H.Ishiyama, P.Schury, Z.M.Niu, H.Z.Liang, S.X.Yan, P.Doornenbal, Y.Hirayama, Y.Ito, S.Kimura, T.M.Kojima, W.Korten, J.Lee, J.J.Liu, Z.Liu, S.Michimasa, H.Miyatake, J.Y.Moon, S.Naimi, S.Nishimura, T.Niwase, T.Sonoda, D.Suzuki, Y.X.Watanabe, K.Wimmer, H.Wollnik

First direct mass measurement for neutron-rich 112Mo with the new ZD-MRTOF mass spectrograph system

doi: 10.1103/PhysRevC.108.054312
Citations: PlumX Metrics


2023II01      Phys.Rev.Lett. 130, 012501 (2023)

S.Iimura, M.Rosenbusch, A.Takamine, Y.Tsunoda, M.Wada, S.Chen, D.S.Hou, W.Xian, H.Ishiyama, S.Yan, P.Schury, H.Crawford, P.Doornenbal, Y.Hirayama, Y.Ito, S.Kimura, T.Koiwai, T.M.Kojima, H.Koura, J.Lee, J.Liu, S.Michimasa, H.Miyatake, J.Y.Moon, S.Naimi, S.Nishimura, T.Niwase, A.Odahara, T.Otsuka, S.Paschalis, M.Petri, N.Shimizu, T.Sonoda, D.Suzuki, Y.X.Watanabe, K.Wimmer, H.Wollnik

Study of the N=32 and N=34 Shell Gap for Ti and V by the First High-Precision Multireflection Time-of-Flight Mass Measurements at BigRIPS-SLOWRI

ATOMIC MASSES 55Sc, 56,58Ti, 56,57,58,59V; measured TOF; deduced masses, nonexistence of the N=34 empirical two-neutron shell gaps for Ti and V, and the enhanced energy gap in Ca. Comparison with new Monte Carlo shell model calculations. RIKEN's Radioactive Isotope Beam Factory (RIBF).

doi: 10.1103/PhysRevLett.130.012501
Citations: PlumX Metrics


2023NI02      J.Nucl.Radiochem.Sci. 23, 1 (2023)

T.Niwase, P.Schury, M.Wada, for the SHE-Mass Collaboration

Accurate event assignment from the decay-correlated mass measurement of the superheavy nuclide 257Db

RADIOACTIVITY 257Db, 253Lr, 249Md, 245Es, 211Po(α); measured decay products, Eα, Iα, TOF; deduced α-decay-correlated masses, certainty of each decay-correlated event. The SHE-Mass-II facility, jointly operated under the auspices of RIKEN Nishina Center and KEK Wako Nuclear Science Center, the RIKEN RI Beam Factory.


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
Citations: PlumX Metrics


2022AU03      Eur.Phys.J. A 58, 88 (2022)

T.Aumann, W.Bartmann, O.Boine-Frankenheim, A.Bouvard, A.Broche, F.Butin, D.Calvet, J.Carbonell, P.Chiggiato, H.De Gersem, R.De Oliveira, T.Dobers, F.Ehm, J.Ferreira Somoza, J.Fischer, M.Fraser, E.Friedrich, A.Frotscher, M.Gomez-Ramos, J.-L.Grenard, A.Hobl, G.Hupin, A.Husson, P.Indelicato, K.Johnston, C.Klink, Y.Kubota, R.Lazauskas, S.Malbrunot-Ettenauer, N.Marsic, W.F.O Muller, S.Naimi, N.Nakatsuka, R.Necca, D.Neidherr, G.Neyens, A.Obertelli, Y.Ono, S.Pasinelli, N.Paul, E.C.Pollacco, D.Rossi, H.Scheit, M.Schlaich, A.Schmidt, L.Schweikhard, R.Seki, S.Sels, E.Siesling, T.Uesaka, M.Vilen, M.Wada, F.Wienholtz, S.Wycech, S.Zacarias

PUMA, antiProton unstable matter annihilation

doi: 10.1140/epja/s10050-022-00713-x
Citations: PlumX Metrics


2022HI07      Phys.Rev. C 106, 034326 (2022)

Y.Hirayama, M.Mukai, Y.X.Watanabe, P.Schury, H.Nakada, J.Y.Moon, T.Hashimoto, S.Iimura, S.C.Jeong, M.Rosenbusch, M.Oyaizu, T.Niwase, M.Tajima, A.Taniguchi, M.Wada, H.Miyatake

In-gas-cell laser resonance ionization spectroscopy of 200, 201Pt

NUCLEAR MOMENTS 198,200,201Pt; measured time-of-flight (TOF) spectra for ions with mass-to-charge-ratios, laser resonance ionization spectra using Multireflection time-of-flight mass spectrograph (MRTOF-MS) at KEK Isotope Separation System (KISS) of RIKEN facility. 200,201Pt; deduced differential mean-square charge radii and isotope shifts relative to those of 198Pt, magnetic dipole and electric quadrupole moments of 201Pt, β2 deformation parameters Comparison with theoretical calculations using symmetry-conserving configuration-mixing (SCCM) with Gogny D1S energy density functionals (SCCM+Gogny D1S), finite-range droplet model (FRDM), and constrained-Hartree-Fock-Bogoliubov (CHFB) theory with five-dimensional collective Hamiltonian (5DCH) based on the Gogny D1 interaction. 201Pt; deduced most likely spin-parity of 5/2-. 198,200,201Pt produced in 198Pt(136Xe, X), E=10.75 MeV/nucleon multi-nucleon transfer reactions.

doi: 10.1103/PhysRevC.106.034326
Citations: PlumX Metrics

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


2022MU10      Phys.Rev. C 105, 034331 (2022)

M.Mukai, Y.Hirayama, Y.X.Watanabe, H.Watanabe, H.Koura, S.C.Jeong, H.Miyatake, M.Brunet, S.Ishizawa, F.G.Kondev, G.J.Lane, Yu.A.Litvinov, T.Niwase, M.Oyaizu, Zs.Podolyak, M.Rosenbusch, P.Schury, M.Wada, P.M.Walker

Ground-state β-decay spectroscopy of 187Ta

RADIOACTIVITY 187Ta(β-)[from W(136Xe, X), E=7.2 MeV/nucleon]; measured Eγ, Iγ, βγ-coin; deduced Iβ feedings, T1/2, logft, Iγ/β-decay. 187W; deduced Eγ, multipolarities, total conversion coefficients (BrIcc calculations). Comparison to KTUY+gross theory, FRDM+QRPA and RHB+pn-RQRPAKEK calculations. Isotope Separation System (KISS) at RIKEN, an argon-gas-cell-based laser ion source combined with an on-line isotope separator.

doi: 10.1103/PhysRevC.105.034331
Citations: PlumX Metrics

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


2021AH02      Phys.Rev. C 103, 054312 (2021)

M.Ahmed, Y.X.Watanabe, Y.Hirayama, M.Mukai, J.H.Park, P.Schury, Y.Kakiguchi, A.Ozawa, M.Oyaizu, M.Wada, H.Miyatake

β-γ spectroscopy of the 195Os nucleus

RADIOACTIVITY 195Os(β-)[ionized 195Os using laser system from 198Pt(136Xe, X), E=9.4 MeV/nucleon at the KEK isotope separation system (KISS) at RIKEN RIBF facility]; measured Eβ, Iβ, Eγ, Iγ, x rays, βγ- and γγ-coin, half-life of 195Os decay using a multisegmented proportional gas counter (MSPGC) for β radiation, and four clover HPGe detectors for γ rays. 195Ir; deduced levels, J, π, Iβ feedings, logft. 195Os; deduced spin and parity of the ground state. Systematics of half-lives of 195,196,197,198,199,200,201,202,203,204,205,206Os, and comparison with theoretical predictions.

doi: 10.1103/PhysRevC.103.054312
Citations: PlumX Metrics

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


2021HI05      Nucl.Instrum.Methods Phys.Res. A997, 165152 (2021)

Y.Hirayama, P.Schury, M.Mukai, H.Choi, S.Iimura, Y.X.Watanabe, M.Wada, H.Watanabe, H.Miyatake

Three-dimensional tracking multi-segmented proportional gas counter for β-decay spectroscopy of unstable nuclei

RADIOACTIVITY 196Ir(β-); measured decay products, Eβ, Iβ; deduced T1/2 and uncertainties.

doi: 10.1016/j.nima.2021.165152
Citations: PlumX Metrics

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


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
Citations: PlumX Metrics

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
Citations: PlumX Metrics


2021WA15      Phys.Lett. B 814, 136088 (2021)

H.Watanabe, Y.X.Watanabe, Y.Hirayama, A.N.Andreyev, T.Hashimoto, F.G.Kondev, G.J.Lane, Yu.A.Litvinov, J.J.Liu, H.Miyatake, J.Y.Moon, A.I.Morales, M.Mukai, S.Nishimura, T.Niwase, M.Rosenbusch, P.Schury, Y.Shi, M.Wada, P.M.Walker

Beta decay of the axially asymmetric ground state of 192Re

RADIOACTIVITY 192Re(β-) [from Pt(136Xe, X)192Re, E=10.75 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, level scheme, J, π. Comparison with single-particle structure using the nuclear Skyrme-Hartree-Fock model. KEK Isotope Separation System (KISS) in RIKEN Nishina Center.

doi: 10.1016/j.physletb.2021.136088
Citations: PlumX Metrics

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


2021WA39      Phys.Rev. C 104, 024330 (2021)

Y.X.Watanabe, P.M.Walker, Y.Hirayama, M.Mukai, H.Watanabe, G.J.Lane, M.Ahmed, M.Brunet, T.Hashimoto, S.Ishizawa, S.Kimura, F.G.Kondev, Yu.A.Litvinov, H.Miyatake, J.Y.Moon, T.Niwase, M.Oyaizu, J.H.Park, Zs.Podolyak, M.Rosenbusch, P.Schury, M.Wada

First direct observation of isomeric decay in neutron-rich odd-odd 186Ta

RADIOACTIVITY 186Ta(β-), 186mTa(IT)[from W(136Xe, X), E=7.2 MeV/nucleon, followed by laser ionization and mass separation at the KEK Isotope Separation System (KISS) of RIBF-RIKEN facility]; measured Eγ, Iγ, (particle)γ-coin, half-lives of decays of 186Ta and neutral 186mTa from γ-decay curves. 186Ta; deduced levels, J, π, E3 multipolarity of the 161-keV isomeric transition from a comparison of measured half-life of the neutral isomer with previous measurements of the ionized isomeric state of 186Ta using the Experimental Storage Ring at GSI Darmstadt, no evidence found for the β decay mode of the 186Ta isomer.

doi: 10.1103/PhysRevC.104.024330
Citations: PlumX Metrics

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


2020CH33      Phys.Rev. C 102, 034309 (2020)

H.Choi, Y.Hirayama, S.Choi, T.Hashimoto, S.C.Jeong, H.Miyatake, J.Y.Moon, M.Mukai, T.Niwase, M.Oyaizu, M.Rosenbusch, P.Schury, A.Taniguchi, Y.X.Watanabe, M.Wada

In-gas-cell laser ionization spectroscopy of 194, 196Os isotopes by using a multireflection time-of-flight mass spectrograph

NUCLEAR MOMENTS 194,196Os; measured laser resonance spectra, time-of-flight spectra using the in-gas-cell laser ionization method and multireflection time-of-flight mass spectrograph (MRTOF-MS); deduced isotope shifts, change in mean-square charge radii and quadrupole deformation parameters. 194,196Os produced in 198Pt(136Xe, X), E=10.75 MeV/nucleon reaction at the KEK Isotope Separation System (KISS). 188,189,190,192,194,196Os; systematics of the change in mean-square charge radii and quadrupole deformation parameters, and their comparison with theoretical calculations.

doi: 10.1103/PhysRevC.102.034309
Citations: PlumX Metrics

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


2020HI01      Nucl.Instrum.Methods Phys.Res. B463, 425 (2020)

Y.Hirayama, Y.X.Watanabe, M.Mukai, P.Schury, M.Ahmed, H.Ishiyama, S.C.Jeong, Y.Kakiguchi, S.Kimura, J.Y.Moon, M.Oyaizu, J.H.Park, M.Wada, H.Miyatake

Nuclear spectroscopy of r-process nuclei using KEK Isotope Separation System

NUCLEAR REACTIONS 198Pt(136Xe, X)196Os/197Os/198Os/198Pt/199Pt, E=10.75 MeV/nucleon; measured reaction products, Eβ, Iβ, Eγ, Iγ; deduced T1/2 for osmium, HFS spectra for platinum.

doi: 10.1016/j.nimb.2019.04.035
Citations: PlumX Metrics

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


2020MU16      Phys.Rev. C 102, 054307 (2020)

M.Mukai, Y.Hirayama, Y.X.Watanabe, S.Schiffmann, J.Ekman, M.Godefroid, P.Schury, Y.Kakiguchi, M.Oyaizu, M.Wada, S.C.Jeong, J.Y.Moon, J.H.Park, H.Ishiyama, S.Kimura, H.Ueno, M.Ahmed, A.Ozawa, H.Watanabe, S.Kanaya, H.Miyatake

In-gas-cell laser resonance ionization spectroscopy of 196, 197, 198Ir

NUCLEAR MOMENTS 196,197,198Ir; measured hyperfine structure (HFS) spectra using in-gas-cell laser resonance ionization spectroscopy at the KEK Isotope Separation System at RIBF-RIKEN facility; deduced spins for the ground states, magnetic dipole moments, mean-square charge radii, isotope shifts, β2 deformation parameters. Comparison with theoretical calculations based on the strong coupling model. Comparison with previous experimental results. Systematics of quadrupole moments, magnetic dipole moments, mean-square charge radii and β2 deformation parameters for 189,191,193,196,197,198Ir.

NUCLEAR REACTIONS 198Pt(136Xe, X)196Ir/197Ir/198Ir, E=10.75 MeV/nucleon; measured extraction yields, Eβ, half-lives of the decays of 196Ir, 197Ir and 198Ir. The Ir isotopes produced in multi-nucleon transfer reaction. Comparison with previous experimental half-lives.

doi: 10.1103/PhysRevC.102.054307
Citations: PlumX Metrics

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


2020WA12      Phys.Rev. C 101, 041305 (2020), Erratum Phys.Rev. C 103, 019902 (2021)

Y.X.Watanabe, M.Ahmed, Y.Hirayama, M.Mukai, J.H.Park, P.Schury, Y.Kakiguchi, S.Kimura, A.Ozawa, M.Oyaizu, M.Wada, H.Miyatake

Deexcitation γ-ray transitions from the long-lived Iπ = 13/2+ metastable state in 195Os

RADIOACTIVITY 195mOs(IT)[from 198Pt(136Xe, X), E=9.4 MeV/nucleon, followed by separation of fragments using KEK Isotope Separation System (KISS) at RIBF-RIKEN facility, and laser excitation of 195Os isomer]; measured Eγ, Iγ, ce, γγ- and (ce)γ-coin, neutral atom T1/2 of the 47-s, (13/2+) isomer from x-ray and γ-ray decay curves using multi-segmented proportional gas counter (MSPGC) for β, x-rays and conversion electrons, and four HPGe clover detectors for γ radiation. 195Os; deduced levels, J, π; discussed multipolarity of the low-energy γ transition from the isomer. Comparison with previous measurement of the 195mOs isomer and half-life of the fully-stripped isomer using the ESR at GSI. Comparison with experimental results for level schemes from the decays of the 13/2+ isomers in 197Pt and 199Hg.

doi: 10.1103/PhysRevC.101.041305
Citations: PlumX Metrics

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


2020WA29      Phys.Rev.Lett. 125, 192505 (2020)

P.M.Walker, Y.Hirayama, G.J.Lane, H.Watanabe, G.D.Dracoulis, M.Ahmed, M.Brunet, T.Hashimoto, S.Ishizawa, F.G.Kondev, Y.A.Litvinov, H.Miyatake, J.Y.Moon, M.Mukai, T.Niwase, J.H.Park, Z.Podolyak, M.Rosenbusch, P.Schury, M.Wada, X.Y.Watanabe, W.Y.Liang, F.R.Xu

Properties of 187Ta Revealed through Isomeric Decay

RADIOACTIVITY 187Ta(IT) [from W(136Xe, X), E=7.2 MeV/nucleon]; measured decay products, Eγ, Iγ, Eβ, Iβ, γ-γ-, β-γ-coin.; deduced level energies, J, π, T1/2. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.125.192505
Citations: PlumX Metrics

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


2018HI07      Phys.Rev. C 98, 014321 (2018), Erratum Phys.Rev. C 106, 069902 (2022)

Y.Hirayama, Y.X.Watanabe, M.Mukai, M.Ahmed, S.C.Jeong, Y.Kakiguchi, S.Kimura, M.Oyaizu, J.H.Park, P.Schury, M.Wada, H.Watanabe, H.Miyatake

β- and γ-decay spectroscopy of 197, 198Os

RADIOACTIVITY 196,197,198Os, 198Ir(β-)[from 198Pt(136Xe, X), E=10.75 MeV/nucleon using KEK Isotope Separation System (KISS) at RIKEN, an argon-gas-cell-based laser ion source combined with an on-line isotope separator]; measured β- radiation using multisegmented proportional gas counter (MSPGC), Eγ, Iγ, γγ- and βγ-coin with particle selection condition of Os and Ir, half-lives of decays of 196,197,198Os and 198Ir. 197,198Ir, 198Pt; deduced levels, Iβ feedings, logft, configurations of parent and daughter states. 197mTl(IT); measured Eγ, Iγ, T1/2; deduced conversion coefficients and compared with previous results. Comparison with previous experimental data. A=195-206, Z=76; comparison of measured β-decay half-lives with theoretical results from DF3, FRDM, and KUTY models.

doi: 10.1103/PhysRevC.98.014321
Citations: PlumX Metrics

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


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


2018MU19      Nucl.Instrum.Methods Phys.Res. A884, 1 (2018)

M.Mukai, Y.Hirayama, Y.X.Watanabe, P.Schury, H.S.Jung, M.Ahmed, H.Haba, H.Ishiyama, S.C.Jeong, Y.Kakiguchi, S.Kimura, J.Y.Moon, M.Oyaizu, A.Ozawa, J.H.Park, H.Ueno, M.Wada, H.Miyatake

High-efficiency and low-background multi-segmented proportional gas counter for β-decay spectroscopy

RADIOACTIVITY 198Ir(β-), 199Pt(IT), (β-) [from 198Pt(136Xe, X), E=9.6 MeV/nucleon]; measured decay products, Eγ, Iγ, Eβ, Iβ, β-γ-coin.; deduced T1/2 and uncertainties. Comparison with available data.

doi: 10.1016/j.nima.2017.12.013
Citations: PlumX Metrics

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


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
Citations: PlumX Metrics


2017HI05      Phys.Rev. C 96, 014307 (2017)

Y.Hirayama, M.Mukai, Y.X.Watanabe, M.Ahmed, S.C.Jeong, H.S.Jung, Y.Kakiguchi, S.Kanaya, S.Kimura, J.Y.Moon, T.Nakatsukasa, M.Oyaizu, J.H.Park, P.Schury, A.Taniguchi, M.Wada, K.Washiyama, H.Watanabe, H.Miyatake

In-gas-cell laser spectroscopy of the magnetic dipole moment of the N ≈ 126 isotope 199Pt

NUCLEAR MOMENTS 199Pt, 199mPt; measured magnetic dipole and electric quadrupole moments, isotope shifts, mean-square charge radii by hyperfine splitting of the 48.792-nm transition using the in-gas-cell laser ionization spectroscopy (IGLIS), and the half-lives of the ground state and the isomer; discussed configurations. 192,196,198Pt; measured mean-square charge radii relative to that of 194Pt by hyperfine structure. Pt isotopes produced in 198Pt(136Xe, X), E=10.75 MeV/nucleon reaction using the on-line KEK Isotope Separation System (KISS) at RIKEN. Comparison with previous experimental results, and with self-consistent Bogoliubov (HFB) model calculations. Systematics of magnetic dipole moments of 5/2- and 13/2+ states in 193,195,197,199Pt and 197,199Hg. Systematics of mean square charge radius and quadrupole deformation in A=178-199 Pt isotopes.

doi: 10.1103/PhysRevC.96.014307
Citations: PlumX Metrics

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


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
Citations: PlumX Metrics


2016HI09      Nuovo Cim. C 39, 359 (2016)

Y.Hirayama, Y.X.Watanabe, H.Miyatake, P.Schury, M.Wada, M.Oyaizu, Y.Kakiguchi, M.Mukai, S.Kimura, M.Ahmed, S.C.Jeong, J.Y.Moon, J.H.Park

Nuclear spectroscopy of r-process nuclei around N=126 using KISS

RADIOACTIVITY 199Pt, 196Ir(β-); measured decay products; deduced T1/2 and their uncertainties. Laser resonance ionization technique in the gas cell.

doi: 10.1393/ncc/i2016-16359-9
Citations: PlumX Metrics


2014TA10      Phys.Rev.Lett. 112, 162502 (2014)

A.Takamine, M.Wada, K.Okada, T.Sonoda, P.Schury, T.Nakamura, Y.Kanai, T.Kubo, I.Katayama, S.Ohtani, H.Wollnik, H.A.Schuessler

Hyperfine Structure Constant of the Neutron Halo Nucleus 11Be+

NUCLEAR MOMENTS 11Be; measured laser-microwave double resonance spectra; deduced hyperfine structure constants, nuclear magnetic moment. Comparison with available data.

doi: 10.1103/PhysRevLett.112.162502
Citations: PlumX Metrics

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


2014YA28      Phys.Rev. A 90, 052516 (2014)

X.Yang, T.Furukawa, T.Wakui, T.Fujita, K.Imamura, Y.Mitsuya, M.Hayasaka, Y.Ichikawa, Y.Ishibashi, H.Shirai, T.Suzuki, Y.Ebara, A.Hatakeyama, M.Wada, T.Sonoda, Y.Ito, T.Kobayashi, S.Nishimura, Mizuki Kurata-Nishimura, Y.Kondo, K.-I.Yoneda, S.Kubono, Y.Ohshiro, H.Ueno, T.Shinozuka, T.Shimoda, K.Asahi, Y.Matsuo

Laser-radio-frequency double-resonance spectroscopy of 84-87Rb isotopes trapped in superfluid helium

NUCLEAR MOMENTS 84,85,86,87Rb; measured laser-radio-frequency double-resonance spectra; deduced nuclear spin values with reasonable accuracy.

doi: 10.1103/PhysRevA.90.052516
Citations: PlumX Metrics


2013IT01      Phys.Rev. C 88, 011306 (2013)

Y.Ito, P.Schury, M.Wada, S.Naimi, T.Sonoda, H.Mita, F.Arai, A.Takamine, K.Okada, A.Ozawa, H.Wollnik

Single-reference high-precision mass measurement with a multireflection time-of-flight mass spectrograph

ATOMIC MASSES 7,8Li, 9Be, 12C; measured time-of-flight (TOF) using a multireflection TOF mass spectrograph (MRTOF) at RIKEN facility. 8Li beam produced in 9Be(13C, X), E=100 MeV/nucleon. 7,8Li, 9Be; deduced mass excesses using 12C as a reference. Comparison with AME-12 values.

doi: 10.1103/PhysRevC.88.011306
Citations: PlumX Metrics


2013SO02      Nucl.Instrum.Methods Phys.Res. B295, 1 (2013)

T.Sonoda, M.Wada, H.Tomita, C.Sakamoto, T.Takatsuka, T.Furukawa, H.Iimura, Y.Ito, T.Kubo, Y.Matsuo, H.Mita, S.Naimi, S.Nakamura, T.Noto, P.Schury, T.Shinozuka, T.Wakui, H.Miyatake, S.Jeong, H.Ishiyama, Y.X.Watanabe, Y.Hirayama, K.Okada, A.Takamine

Development of a resonant laser ionization gas cell for high-energy, short-lived nuclei

ATOMIC PHYSICS Fe, Co, Nb, Cu; measured laser wavelength for resonance ionization, transport efficiency. Comparison with calculations.

doi: 10.1016/j.nimb.2012.10.009
Citations: PlumX Metrics


2013WA17      Nucl.Phys. A904-905, 1019c (2013)

M.Wada, for the STAR Collaboration

φ(1020) and ω(782) Mesons from Dielectron Decays at STAR

doi: 10.1016/j.nuclphysa.2013.02.188
Citations: PlumX Metrics


2011WA20      Hyperfine Interactions 199, 269 (2011)

M.Wada, A.Takamine, T.Sonoda, K.Okada, P.Schury

Developments at the SLOWRI facility at RIKEN: precision optical spectroscopy of 7, 9, 10, 11Be+ ions

NUCLEAR MOMENTS 7,9,10,11Be; measured microwave resonance and transition spectra; deduced the ground state hyperfine constants.

doi: 10.1007/s10751-011-0322-8
Citations: PlumX Metrics


2010AK05      Nucl.Phys. A835, 67c (2010)

Y.Akaishi, T.Yamazaki, M.Obu, M.Wada

Single-pole nature of Λ(1405) and structure of K-pp

doi: 10.1016/j.nuclphysa.2010.01.176
Citations: PlumX Metrics


2009SC30      Eur.Phys.J. A 42, 343 (2009)

P.Schury, K.Okada, S.Shchepunov, T.Sonoda, A.Takamine, M.Wada, H.Wollnik, Y.Yamazaki

Multi-reflection time-of-flight mass spectrograph for short-lived radioactive ions

doi: 10.1140/epja/i2009-10882-6
Citations: PlumX Metrics


2009TA35      Eur.Phys.J. A 42, 369 (2009)

A.Takamine, M.Wada, K.Okada, T.Nakamura, P.Schury, T.Sonoda, V.Lioubimov, H.Iimura, Y.Yamazaki, Y.Kanai, T.M.Kojima, A.Yoshida, T.Kubo, I.Katayama, S.Ohtani, H.Wollnik, H.A.Schuessler

Isotope shift measurements of 11, 9, 7Be+

ATOMIC PHYSICS 7,9,11Be; measured optical transition energy, hyperfine constant; deduced microwave resonance and optical-optical double-resonance spectra, ground-state hyperfine splittings. Cryogenic linear Paul trap.

doi: 10.1140/epja/i2009-10883-5
Citations: PlumX Metrics


2008OK01      Phys.Rev.Lett. 101, 212502 (2008)

K.Okada, M.Wada, T.Nakamura, A.Takamine, V.Lioubimov, P.Schury, Y.Ishida, T.Sonoda, M.Ogawa, Y.Yamazaki, Y.Kanai, T.M.Kojima, A.Yoshida, T.Kubo, I.Katayama, S.Ohtani, H.Wollnik, H.A.Schuessler

Precision Measurement of the Hyperfine Structure of Laser-Cooled Radioactive 7Be+ Ions Produced by Projectile Fragmentation

NUCLEAR MOMENTS 7Be; measured hyperfine splitting using laser-microwave double-resonance spectroscopy. Deduced nuclear magnetic moment.

doi: 10.1103/PhysRevLett.101.212502
Citations: PlumX Metrics

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


2007SA30      J.Nucl.Sci.Technol.(Tokyo) 44, 657 (2007)

S.Sato, Y.Verzilov, K.Ochiai, M.Wada, C.Kutsukake, S.Tanaka, Y.Abe, M.Seki, Y.Oginuma, M.Kawabe, T.Nishitani, C.Konno

Neutronics Experimental Study on Tritium Production in Solid Breeder Blanket Mockup with Neutron Reflector

doi: 10.1080/18811248.2007.9711854
Citations: PlumX Metrics


2007WA24      Hyperfine Interactions 173, 153 (2007)

M.Wada, Y.Ishida, T.Nakamura, Y.Kanai, T.M.Kojima, A.Takamine, Y.Yamazaki, K.Okada, A.Yoshida, T.Kubo, I.Katayama, S.Ohtani, V.Varentsov, H.Wollnik, V.Lioubimov, H.A.Schuessler

Laser spectroscopy of trapped 7Be and 10Be at a prototype slow RI-beam facility of RIKEN

doi: 10.1007/s10751-007-9552-1
Citations: PlumX Metrics


2004WA02      Nucl.Instrum.Methods Phys.Res. B214, 196 (2004)

M.Wada, Y.Yamazaki

Technical developments toward antiprotonic atoms for nuclear structure studies of radioactive nuclei

doi: 10.1016/j.nimb.2003.08.019
Citations: PlumX Metrics


2002IS05      Nucl.Phys. A701, 58c (2002)

H.Ishiyama, H.Miyatake, N.Yoshikawa, S.C.Jeong, M.Wada, Y.Ishida, M.H.Tanaka, S.Takaku, Y.Fuchi, H.Kawashima, I.Katayama, T.Nomura, T.Teranishi, M.Michimasa, N.Imai, Y.Yanagisawa, S.Kubono, P.Strasser, S.Kato

A Recoil Mass Separator for Nuclear Astrophysics Experiments

doi: 10.1016/S0375-9474(01)01548-2
Citations: PlumX Metrics


2002JE08      Nucl.Phys. A701, 461c (2002)

S.C.Jeong, H.Ishiyama, H.Kawakami, H.Miyatake, Y.Ishida, E.Tojyo, M.Oyaizu, S.Mizutani, N.Yoshikawa, M.H.Tanaka, H.Kawashima, Y.Fuchi, M.Wada, I.Katayama, T.Nomura

Target-Ion-Source System for RNB Facility at KEK Tanashi

doi: 10.1016/S0375-9474(01)01627-X
Citations: PlumX Metrics


2002MI25      Nucl.Phys. A701, 62c (2002)

H.Miyatake, S.C.Jeong, H.Ishiyama, Y.Ishida, H.Kawakami, N.Yoshikawa, I.Katayama, M.H.Tanaka, E.Tojyo, M.Oyaizu, S.Arai, S.Tomizawa, K.Niki, Y.Arakaki, M.Okada, Y.Takeda, M.Wada, P.Strasser, S.Kubono, T.Nomura

Present Status of the Radioactive Nuclear Beam Facility at KEK-Tanashi and the E-Arena in the KEK-JAERI Joint Project

doi: 10.1016/S0375-9474(01)01549-4
Citations: PlumX Metrics


2001NA15      Nucl.Phys. A684, 71c (2001)

T.Nakano, J.K.Ahn, M.Fujiwara, H.Kohri, N.Matsuoka, T.Mibe, N.Muramatsu, M.Nomachi, H.Shimizu, K.Yonehara, M.Yosoi, T.Yorita, W.C.Chang, C.W.Wang, S.C.Wang, Y.Asano, T.Hotta, Y.Sugaya, R.Zegers, S.Date, N.Kumagai, Y.Ohashi, H.Ohkuma, H.Toyokawa, T.Iwata, M.Miyabe, Y.Miyachi, A.Wakai, K.Imai, T.Ishikawa, M.Miyabe, T.Sasaki, H.Kawai, T.Ooba, Y.Shiino, M.Wada, H.C.Bhang, Z.Y.Kim, A.Sakaguchi, M.Sumihama, K.Hicks, H.Akimune, T.Matsumura, C.Rangacharyulu, S.Makino

Multi-GeV Laser-Electron Photon Project at SPring-8

NUCLEAR REACTIONS 1H(γ, X), E=high; measured particles invariant mass spectra; deduced φ meson production.

doi: 10.1016/S0375-9474(01)00490-0
Citations: PlumX Metrics


2000AR25      Prog.Theor.Phys.(Kyoto) 104, 995 (2000)

I.Arisaka, K.Nakagawa, S.Shinmura, M.Wada

An SU(3) Symmetric One-Boson-Exchange Potential between Two Octet Baryons

doi: 10.1143/PTP.104.995
Citations: PlumX Metrics


1999MA25      J.Nucl.Sci.Technol.(Tokyo) 36, 242 (1999)

F.Maekawa, Y.Kasugai, C.Konno, I.Murata, Kokooo, M.Wada, Y.Oyama, Y.Ikeda, A.Takahashi

Benchmark Experiment on Vanadium with D-T Neutrons and Validation of Evaluated Nuclear Data Libraries by Analysis of the Experiment

NUCLEAR REACTIONS V(n, X), E=spectrum; measured En, Eγ. Comparisons with evaluated data files.

doi: 10.1080/18811248.1999.9726204
Citations: PlumX Metrics


1997KU05      Nucl.Phys. A616, 11c (1997)

S.Kubono, T.Nomura, S.Arai, Y.Arakaki, Y.Hashimoto, A.Imanishi, S.C.Jeong, I.Katayama, T.Katayama, H.Kawakami, H.Masuda, T.Miyachi, K.Niki, M.Okada, M.Oyaizu, Y.Shirakabe, P.Strasser, Y.Takeda, J.Tanaka, M.H.Tanaka, E.Tojyo, N.Tokuda, M.Tomizawa, M.Wada, K.Yoshida, M.Yoshizawa, M.Fujioka, S.Kato, T.Shinozuka, H.Wollnik

New ISOL-Based Radioactive Nuclear Beam Facility at INS

doi: 10.1016/S0375-9474(97)00069-9
Citations: PlumX Metrics


1997WA35      Nucl.Phys. A626, 365c (1997)

M.Wada, K.Okada, H.Wang, K.Enders, F.Kurth, T.Nakamura, S.Fujitaka, J.Tanaka, H.Kawakami, S.Ohtani, I.Katayama

Laser-Microwave Spectroscopy of the Hyperfine Structure of 9Be for the Investigation of Unstable Be Isotopes

NUCLEAR MOMENTS 9Be; measured hfs; deduced magnetic moments. Laser-microwave double resonance spectroscopy.

doi: 10.1016/S0375-9474(97)00559-9
Citations: PlumX Metrics


1995MO14      Z.Phys. A352, 7 (1995)

K.Morita, Y.H.Pu, J.Feng, M.G.Hies, K.O.Lee, A.Yoshida, S.C.Jeong, S.Kubono, T.Nomura, Y.Tagaya, M.Wada, M.Kurokawa, T.Motobayashi, H.Ogawa, T.Uchibori, K.Sueki, T.Ishizuka, K.Uchiyama, Y.Fujita, H.Miyatake, T.Shimoda, T.Shinozuka, H.Kudo, Y.Nagai, S.A.Shin

New α-Decaying Neutron Deficient Isotopes 197Rn and 200Fr

NUCLEAR REACTIONS 166Er(36Ar, 5n), E=186, 200 MeV; 169Tm(36Ar, 5n), E=186 MeV; measured Eα, Iα; deduced evidence for 197,197mRn, 200Fr. Evaporation residues obtained from gas-filled recoil separator, implanted onto position sensitive solid state detector.

RADIOACTIVITY 197,197mRn(α) [from 166Er(36Ar, 5n), E=186, 200 MeV]; 200Fr(α) [from 169Tm(36Ar, 5n), E=186 MeV]; 193,193mPo(α) [from 197,197mRn(α-decay)]; 196Rn(α) [from 166Er(36Ar, 6n)]; 192Po(α) [from 196Rn(α-decay)]; 200Fr(α) [from 169Tm(36Ar, 5n), E=186 MeV]; 196At(α) [from 200Fr(α-decay)]; measured Eα, Iα, T1/2, αα-energy correlations. Evaporation residues obtained from gas-filled recoil separator, implanted onto position sensitive solid state detector.


1994AR31      Prog.Theor.Phys.(Kyoto) 92, 281 (1994)

I.Arisaka, K.Nakagawa, T.Obinata, M.Wada

Realistic Nucleon-Nucleon Potentials Expressed in Terms of the Gaussian Basis

NUCLEAR STRUCTURE 2H; calculated binding energy, quadrupole moment, D-state probability. Realistic interactions, Gaussian basis, nucleon-nucleon phase shifts analyzed.

doi: 10.1143/ptp/92.1.281
Citations: PlumX Metrics


1993SU33      Hyperfine Interactions 78, 241 (1993)

H.Sunaoshi, Y.Fukashiro, M.Furukawa, M.Yamauchi, S.Hayashibe, T.Shinozuka, M.Fujioka, I.Satoh, M.Wada, S.Matsuki

A Precision Measurement of the Hyperfine Structure of 87Sr+

NUCLEAR MOMENTS 87Sr; measured hfs; deduced hyperfine constant. On-line isotope separator, RF ion trap.

doi: 10.1007/BF00568145
Citations: PlumX Metrics


1993TA17      Z.Phys. A347, 53 (1993)

M.Tanikawa, H.Kudo, H.Sunaoshi, M.Wada, T.Shinozuka, M.Fujioka

Isomeric Yield Ratios of Fission Products in the System of 24 MeV Proton-Induced Fission of 238U

NUCLEAR REACTIONS 238U(p, F), E=24 MeV; measured fission fragment isomeric yield ratios, mass range 82-148; deduced primary fission fragment angular momenta, deformation at scission features. Statistical model. Activation technique.

doi: 10.1007/BF01301277
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1855.


1992FU08      Hyperfine Interactions 74, 41 (1992)

Y.Fukashiro, H.Sunaoshi, S.Hayashibe, T.Shinozuka, M.Fujioka, M.Yagi, I.Satoh, M.Wada, S.Matsuki

Nuclear Laser Spectroscopy Using a Laser-Microwave Double-Resonance Method with an Ion Trap

NUCLEAR MOMENTS 87Sr; measured hfs; deduced magnetic dipole hyperfine constant. RF-trap connected to on-line isotope separator.

doi: 10.1007/BF02398615
Citations: PlumX Metrics


1992MA52      Hyperfine Interactions 74, 223 (1992)

S.Matsuki, K.Shimomura, I.Ogawa, K.Suzuki, S.Hamada, T.Nakamura, H.Okuno, M.Koizumi, N.Inabe, Y.Fukashiro, H.Sunaoshi, M.Wada, T.Murayama, T.Kohmoto, M.Kitano, T.Kubo, T.Shinozuka, K.Asahi, Y.Kido, T.T.Inamura, T.Nomura, M.Ishihara, M.Fujioka, H.T.Duong, H.Haas, and the ISOLDE Collaboration

Radiation-Detected Optical Pumping in Solids

NUCLEAR REACTIONS 160Gd(12C, 5np), E=100 MeV; measured residual nucleus polarization. 160Gd(12C, 6n), E=100 MeV; measured nuclear polarization following residual decay. Optical pumping in SrF, crystal.

RADIOACTIVITY 164Tm(β+) [from 164Yb-decay following production in 158Gd(12C, 6n), E=100 MeV]; measured β+ asymmetry. On-line polarization, implantation in CaF2 host crystal. 114mIn(IT); measured β+ asymmetry of 114In decay vs exciting laser wavelength. Polarization of 114In in GaAs crystal, Ti-saphire excited laser for optical pumping. 33Si(β-) [from 9Be(Ar, X), E=94 MeV/nucleon]; measured β-asymmetry, NMR vs exciting laser wavelength. Ion implantation in GaAs host crystal.

doi: 10.1007/BF02398632
Citations: PlumX Metrics


1992SH23      Hyperfine Interactions 74, 317 (1992)

K.Shimomura, T.Nakamura, H.Okuno, M.Koizumi, S.Hamada, N.Inabe, I.Ogawa, K.Suzuki, M.Wada, H.Sunaoshi, Y.Fukashiro, T.Murayama, T.Kohmoto, T.Shinozuka, T.Kubo, K.Asahi, T.Inamura, M.Ishihara, M.Fujioka, S.Matsuki

Nuclear Polarization and Magnetic Resonance of 33Si with Optical Pumping in Solids

RADIOACTIVITY 33Si(β-) [from 9Be(Ar, X), E=80, 95 MeV/nucleon]; measured β-asymmetry, more precise T1/2; deduced polarization, magnetic resonance. Scintillation-counter telescopes, implantation into liquid He cooled GaAs crystal.

doi: 10.1007/BF02398646
Citations: PlumX Metrics


1992SH31      Nucl.Instrum.Methods Phys.Res. B70, 513 (1992)

K.Shimomura, I.Ogawa, K.Suzuki, S.Hamada, T.Nakamura, H.Okuno, M.Koizumi, N.Inabe, Y.Fukashiro, H.Sunaoshi, M.Wada, S.Hatori, T.Murayama, T.Kohmoto, Y.Fukuda, T.Kubo, T.Shinozuka, K.Asahi, S.Morinobu, T.T.Inamura, M.Ishihara, M.Fujioka, M.Kondo, S.Matsuki

OPERA: An On-Line System of Optical Pumping in Solids for Unstable Nuclei

RADIOACTIVITY 166Tm(β+), (EC) [from 166Yb(EC-decay) following 160Gd(12C, 6n), E=100 MeV; 160Gd(12C, 5np), E=100 MeV]; 114In(β-), (β+), (EC) [from 114mIn(IT)]; 33Si(β-) [from 9Be(Ar, X), E=94 MeV/nucleon]; measured β asymmetry, NMR, polarized nuclei. On-line system, optical pumping in solids.

doi: 10.1016/0168-583X(92)95975-W
Citations: PlumX Metrics


1992WA36      Nucl.Instrum.Methods Phys.Res. B70, 500 (1992)

M.Wada, H.Sunaoshi, Y.Fukashiro, S.Hayashibe, T.Shinozuka, M.Fujioka, I.Satoh, M.Yagi, S.Matsuki

An Ion Trap for Nuclear Laser Spectroscopy at Tohoku ISOL

NUCLEAR MOMENTS 87Sr; measured hfs. On-line ion trap, laser microwave double resonance spectroscopy.

doi: 10.1016/0168-583X(92)95973-U
Citations: PlumX Metrics


1989NA18      Prog.Theor.Phys.(Kyoto) 82, 226 (1989)

K.Nakagawa, T.Obinata, M.Wada, I.Arisaka

Comments on the Coordinate-Space Bonn Potential

NUCLEAR STRUCTURE 3H, 4He; calculated rms radii, D-state probability, binding energy, total energy. ATMS method, Bonn potential.

doi: 10.1143/PTP.82.226
Citations: PlumX Metrics


1972WA25      Prog.Theor.Phys. 47, 535 (1972)

M.Wada

Nonstatic Nuclear Forces of the Triplet State in Momentum Space

doi: 10.1143/PTP.47.535
Citations: PlumX Metrics


Back to query form