Search Results - "Hiroyuki Sakaue, Hiroyuki Sakaue"
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Properties of Kilonovae from Dynamical and Post-merger Ejecta of Neutron Star Mergers
Published in The Astrophysical journal (10-01-2018)“…Ejected material from neutron star mergers gives rise to electromagnetic emission powered by radioactive decays of r-process nuclei, the so-called kilonova or…”
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2
A Wide Vacuum Ultraviolet Range Spectrometer for Use with an Electron Beam Ion Trap
Published in Journal of the Physical Society of Japan (15-11-2021)“…We present a new spectrometer for spectroscopic studies of highly charged ions with an electron beam ion trap (EBIT) in the vacuum ultraviolet range. The…”
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3
Electron Density Dependence of Extreme Ultraviolet Line Intensity Ratios in Ar XIV
Published in The Astrophysical journal (01-11-2021)“…We report the electron density dependence of extreme ultraviolet line intensity ratios in Ar xiv studied using a well-defined electron beam ion trap plasma…”
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4
Energy Dependence of the Line Ratio I(233.9 Å)/I(243.8 Å) in Fe xv Observed with an Electron Beam Ion Trap
Published in The Astrophysical journal (01-01-2023)“…We present the energy dependence of the intensity ratio between the 3 s 3 p 3 P 2 —3 s 3 d 3 D 3 transition at 233.9 Å and the 3 s 3 p 1 P 1 —3 s 3 d 1 D 2…”
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Propulsive forces on water polo players' feet from eggbeater kicking estimated by pressure distribution analysis
Published in Sports biomechanics (03-10-2023)“…The purpose of this study was to characterise the unsteady propulsive force during eggbeater kicking by a fluid force estimation method based on pressure…”
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6
Laser Induced Breakdown Spectroscopy of Er II for Transition Probability Measurements
Published in Applied sciences (21-02-2022)“…We present a laser induced breakdown spectrum of Er II in the near ultraviolet region. To use the spectrum for the evaluation of the transition probabilities,…”
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7
Identification of Visible Lines in Pm-like W13
Published in Atoms (13-03-2023)“…To provide spectroscopic data for W13+, the present work is focused on the analysis of spectra observed in the visible range, using a compact electron beam ion…”
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8
Observation of line emissions from Ni-like W46 + ions in wavelength range of 7-8 Å in the Large Helical Device
Published in Physica scripta (14-02-2020)“…Tungsten W46+ lines were successfully observed in the extreme ultraviolet (EUV) wavelength range of 7 ∼ 8 Å in the Large Helical Device (LHD). Tungsten ions…”
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9
Theoretical investigation on the soft X-ray spectrum of the highly-charged W54+ ions
Published in Journal of quantitative spectroscopy & radiative transfer (01-01-2018)“…•A detailed level collisional-radiative model (CRM) had been constructed to investigate the observed spectrum from the EBIT with a mono-energy electron…”
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10
Exclusion of PCBM molecules from C60 domain on Au (111)
Published in Japanese Journal of Applied Physics (22-01-2020)“…To investigate the influence of asymmetric intermolecular interactions of phenyl-C61-butyric acid methyl ester (PCBM), the behaviors of C60 and PCBM molecules…”
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11
Direct Observation of the M1 Transition between the Ground Term Fine Structure Levels of W VIII
Published in Atoms (08-03-2017)“…We present a direct observation of the M1 transition between the fine structure splitting in the 4f135s25p64f135s25p6 2F2F ground term of W VIII. The…”
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12
Population trapping: The mechanism for the lost resonance lines in Pm-like ions
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-10-2017)“…We report a population kinetics study on line emissions of the Pm-like Bi22+ performed by using a collisional-radiative (CR) model. Population rates of excited…”
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13
2D mapping of hydrogen permeation from a stainless steel membrane
Published in Scripta materialia (01-02-2018)“…Hydrogen permeation from a metal surface was visualized by two-dimensional mapping of hydrogen ion desorbed by scanning electron beam irradiation. The sample…”
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14
Resonant Electron Impact Excitation of 3d Levels in Fe14+ and Fe15
Published in The Astrophysical journal (20-12-2017)“…We present laboratory spectra of the 3p-3d transitions in Fe14+ and Fe15+ excited with a mono-energetic electron beam. In the energy-dependent spectra obtained…”
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15
Development of a high‐temperature superconducting magnet for use in a cryogen‐free electron beam ion trap
Published in X-ray spectrometry (01-03-2020)“…We present a design and test results of a high‐temperature superconducting magnet, which is under development for use in a new cryogen‐free electron beam ion…”
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16
Correlation, Breit and Quantum Electrodynamics effects on energy level and transition properties of W54+ ion
Published in The European physical journal. D, Atomic, molecular, and optical physics (23-03-2017)“…The electron correlation effects and Breit interaction as well as Quantum Electro-Dynamics (QED) effects were expected to have important contribution to the…”
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17
Identification of Visible Lines in Pm-like W[sup.13+]
Published in Atoms (01-03-2023)“…To provide spectroscopic data for W[sup.13+] , the present work is focused on the analysis of spectra observed in the visible range, using a compact electron…”
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18
Quasi-Moseley's law for strong narrow bandwidth soft x-ray sources containing higher charge-state ions
Published in Applied physics letters (09-06-2014)“…Bright narrow band emission observed in optically thin plasmas of high-Z elements in the extreme ultraviolet spectral region follows a quasi-Moseley's law. The…”
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19
Resonant electron impact excitation of highly charged Fe ions studied with a compact electron beam ion trap
Published in X-ray spectrometry (01-07-2020)“…We present extreme ultraviolet spectra of 3s3p–3s3d transitions in Fe14+ observed with a compact electron beam ion trap. The contributions of indirect…”
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20
Extreme ultra-violet emission spectroscopy of highly charged gadolinium ions with an electron beam ion trap
Published in Physica scripta (01-09-2013)“…We present extreme ultra-violet emission spectra of highly charged gadolinium ions obtained with an electron beam ion trap at electron energies of 0.53-1.51…”
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