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NSR database version of April 11, 2024.

Search: Author = M.Seto

Found 15 matches.

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2019MA63      Nature(London) 573, 238 (2019)

T.Masuda, A.Yoshimi, A.Fujieda, H.Fujimoto, H.Haba, H.Hara, T.Hiraki, H.Kaino, Y.Kasamatsu, S.Kitao, K.Konashi, Y.Miyamoto, K.Okai, S.Okubo, N.Sasao, M.Seto, T.Schumm, Y.Shigekawa, K.Suzuki, S.Stellmer, K.Tamasaku, S.Uetake, M.Watanabe, T.Watanabe, Y.Yasuda, A.Yamaguchi, Y.Yoda, T.Yokokita, M.Yoshimura, K.Yoshimura

X-ray pumping of the ²²⁹Th nuclear clock isomer

RADIOACTIVITY ²²⁹Th(IT); measured decay products, Eγ, Iγ; deduced nuclear resonance scattering curves, active optical pumping into ^229mTh, resonance energy and T_1/2, branching ratios.

doi: 10.1038/s41586-019-1542-3
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2019NA24      Hyperfine Interactions 240, 103 (2019)

S.Nakamura, H.Yokota, S.Kitao, Y.Kobayashi, M.Saito, R.Masuda, M.Seto

Correction to: Development of ¹⁶⁶Er Mossbauer spectroscopy in KURNS

doi: 10.1007/s10751-019-1649-9
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2018YO02      Phys.Rev. C 97, 024607 (2018)

A.Yoshimi, H.Hara, T.Hiraki, Y.Kasamatsu, S.Kitao, Y.Kobayashi, K.Konashi, R.Masuda, T.Masuda, Y.Miyamoto, K.Okai, S.Okubo, R.Ozaki, N.Sasao, O.Sato, M.Seto, T.Schumm, Y.Shigekawa, S.Stellmer, K.Suzuki, S.Uetake, M.Watanabe, A.Yamaguchi, Y.Yasuda, Y.Yoda, K.Yoshimura, M.Yoshimura

Nuclear resonant scattering experiment with fast time response: Photonuclear excitation of ²⁰¹Hg

NUCLEAR REACTIONS ²⁰¹Hg(γ, γ), E=high brilliance synchrotron radiation; measured decay signals, fluorescence energy spectrum, x-rays, half-life of 26.27-keV state of ²⁰¹Hg, nuclear resonant scattering (NRS) technique using BL09XU of SPring-8 of Japan Synchrotron Radiation Research Institute (JASRI). ²⁰¹Hg; deduced level, B(M1), σ(NRS).

doi: 10.1103/PhysRevC.97.024607
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2016MA89      Sci. Rep. 6, 20861 (2016), Erratum Sci. Rep. 6, 27053 (2016)

R.Masuda, Ya.Kobayashi, S.Kitao, M.Kurokuzu, M.Saito, Y.Yoda, T.Mitsui, K.Hosoi, H.Kobayashi, H.Kitagawa, M.Seto

⁶¹Ni synchrotron radiation-based Mossbauer spectroscopy of nickel-based nanoparticles with hexagonal structure

NUCLEAR REACTIONS ⁶¹Ni(γ, γ), E not given; measured frequencies, X-rays; deduced ⁶¹Ni synchrotron-radiation (SR)-based Mossbauer absorption spectra of hexagonal Ni nanoparticles. The undulator beamlines (BL09XU: public beamline for nuclear resonant scattering (NRS) experiments, BL11XU: Contract beamline of Japan Atomic Energy Agency) of SPring-8.

doi: 10.1038/srep20861
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2012MI09      Hyperfine Interactions 204, 97 (2012)

T.Mitsui, R.Masuda, N.Hirao, K.Mibu, M.Seto

Synchrotron radiation ⁵⁷Fe-Mossbauer spectroscopy using nuclear monochromator

doi: 10.1007/s10751-011-0488-0
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2006KI12      Phys.Rev. C 74, 031301 (2006)

S.Kishimoto, Y.Yoda, Y.Kobayashi, S.Kitao, R.Haruki, R.Masuda, M.Seto

Nuclear excitation by electron transition on ¹⁹⁷Au by photoionization around the K-absorption edge

NUCLEAR REACTIONS ¹⁹⁷Au(X-ray, X-ray), E ≈ 80 keV; measured X-ray spectra. ¹⁹⁷Au deduced nuclear excitation by electron transition.

doi: 10.1103/PhysRevC.74.031301
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2005KI01      Nucl.Phys. A748, 3 (2005)

S.Kishimoto, Y.Yoda, Y.Kobayashi, S.Kitao, R.Haruki, M.Seto

Evidence for nuclear excitation by electron transition on ¹⁹³Ir and its probability

NUCLEAR REACTIONS ¹⁹³Ir(X-ray, X-ray), (X-ray, γ), E=low; measured γ-spectra, X-ray spectra. ¹⁹³Ir deduced probability for nuclear excitation by electron transition. Synchrotron radiation, silicon avalanche photodiode.

doi: 10.1016/j.nuclphysa.2004.10.016
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2005MI28      J.Phys.Soc.Jpn. 74, 3122 (2005)

T.Mitsui, R.Masuda, S.Kitao, M.Seto

Nuclear Resonant Scattering of Synchrotron Radiation by ¹⁵⁸Gd

NUCLEAR REACTIONS ¹⁵⁸Gd(X-ray, X-ray), E ≈ 79.5 keV; measured delayed X-ray spectrum. ¹⁵⁸Gd deduced excited state energy, T_1/2. Synchrotron radiation, comparison with previous results.

doi: 10.1143/JPSJ.74.3122
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2002SE12      Hyperfine Interactions 141/142, 99 (2002)

M.Seto, S.Kitao, Y.Kobayashi, R.Haruki, T.Mitsui, Y.Yoda, X.W.Zhang, S.Kishimoto, Y.Maeda

Nuclear Resonant Inelastic and Forward Scattering of Synchrotron Radiation by ⁴⁰K

NUCLEAR REACTIONS ⁴⁰K(γ, γ'), E ≈ 29.83 keV; measured delayed Eγ, Iγ. ⁴⁰K deduced level energy, T_1/2.

doi: 10.1023/A:1021241600902
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2000KI15      J.Phys.Soc.Jpn. 69, 683 (2000)

S.Kitao, T.Mitsui, M.Seto

Nuclear Resonant Scattering of Synchrotron Radiation by ¹²¹Sb and ¹⁴⁹Sm

NUCLEAR REACTIONS ¹²¹Sb(γ, γ'), E=22.5 keV; ¹⁴⁹Sm(γ, γ'), E=37.1 keV; measured X-ray spectra following internal conversion. ¹²¹Sb, ¹⁴⁹Sm levels deduced T_1/2. Nuclear resonant scattering, synchrotron radiation.

doi: 10.1143/JPSJ.69.683
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2000KI22      Phys.Rev.Lett. 85, 1831 (2000)

S.Kishimoto, Y.Yoda, M.Seto, Y.Kobayashi, S.Kitao, R.Haruki, T.Kawauchi, K.Fukutani, T.Okano

Observation of Nuclear Excitation by Electron Transition in ¹⁹⁷Au with Synchrotron X Rays and an Avalanche Photodiode

NUCLEAR REACTIONS ¹⁹⁷Au(γ, γ'), E=low; measured delayed E(ce), I(ce); deduced probability for nuclear excitation by electron transition. Comparison with previous data, model predictions.

doi: 10.1103/PhysRevLett.85.1831
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2000SE01      Phys.Rev.Lett. 84, 566 (2000)

M.Seto, S.Kitao, Y.Kobayashi, R.Haruki, T.Mitsui, Y.Yoda, X.W.Zhang, Yu.Maeda

Nuclear Resonance Scattering of Synchrotron Radiation by ⁴⁰K

NUCLEAR REACTIONS ⁴⁰K(γ, γ'), E ≈ 30 keV; measured delayed Eγ, Iγ(t). ⁴⁰K deduced level energy, T_1/2. Resonance spectroscopy with synchrotron radiation.

doi: 10.1103/PhysRevLett.84.566
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1995SE06      Phys.Rev.Lett. 74, 3828 (1995)

M.Seto, Y.Yoda, S.Kikuta, X.W.Zhang, M.Ando

Observation of Nuclear Resonant Scattering Accompanied by Phonon Excitation Using Synchrotron Radioation

doi: 10.1103/PhysRevLett.74.3828
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1993MA71      Hyperfine Interactions 80, 1103 (1993)

Y.Maeda, M.Seto, T.Matsuyama, H.Yamaoka, H.Sakai

¹²⁹I and ¹²⁵Te Mossbauer Studies of Polyvinyl Alcohol Films Doped with Iodine

NUCLEAR REACTIONS ¹²⁵Te(γ, γ), E=35.46 keV; measured not given; deduced Iodine-PVA complex structural arrangement. ¹²⁹Xe(γ, γ), E=39.57 keV; measured Mossbauer spectra. Emission Mossbauer spectroscopy, ^125,129I sources.

doi: 10.1007/BF00567471
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1993SE07      Nucl.Instrum.Methods Phys.Res. B76, 348 (1993)

M.Seto, Y.Maeda, T.Matsuyama, H.Yamaoka, H.Sakai

Mossbauer Spectroscopic Study of Fullerene C₆₀ Doped with Iodine

NUCLEAR REACTIONS ¹²⁹I(γ, γ), E=27.77 keV; measured Mossbauer spectra; deduced Mossbauer parameters, absorption intensity, quadrupole coupling constant.

doi: 10.1016/0168-583X(93)95233-U
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