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NSR database version of April 27, 2024.

Search: Author = F.Arai

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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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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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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
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