研究者総覧

石井 邦和 (イシイ クニカズ)

  • 研究院自然科学系物理学領域 准教授
メールアドレス:
ishiicc.nara-wu.ac.jp
Last Updated :2021/06/02

researchmap

学位

  • 博士(理学), 東京都立大学

研究分野

  • 自然科学一般, 半導体、光物性、原子物理

学歴

  • - 2002年 東京都立大学 理学研究科 物理学専攻 日本国
  • - 2002年 東京都立大学 Graduate School, Division of Natural Science Department of Physics

委員歴

  • 2018年04月 - 2019年03月 原子衝突研究協会 行事委員 原子衝突研究協会 society

    学協会

  • 2015年04月 - 2017年03月 原子衝突研究協会 運営委員 原子衝突研究協会 society

    学協会

  • 2011年04月 - 2013年03月 原子衝突研究協会 運営委員 原子衝突研究協会 society

    学協会

  • 2008年04月 - 2012年03月 原子衝突研究協会 行事委員、編集委員 原子衝突研究協会 society

    学協会

  • 2009年11月 - 2010年10月 日本物理学会 領域1放射線物理世話人 日本物理学会 society

    学協会

  • 2009年09月 タンデム加速器及びその周辺技術の研究会 タンデム研究会世話人 タンデム加速器及びその周辺技術の研究会 society

    学協会

論文

  • Inlet MeV ion beam dependence of transmission property for a glass capillary filled with He gas

    M. Asamura; Y. Fukunaga; K. Ishii; H. Ogawa

    2019年, Nucl. Instr. Meth. B, 460, 220 - 223

    研究論文(学術雑誌)

  • Number distribution of emitted electrons by MeV H+ impact on carbon

    H. Ogawa; Y. Koyanagi; N. Hongo; K. Ishii; T. Kaneko

    The statistical distributions of the number of the forward- and backward-emitted secondary electrons (SE's) from a thin carbon foil have been measured in coincidence with foil-transmitted H+ ions of 0.5–3.0 MeV in every 0.5 MeV step. The measured SE energy spectra were fitted by assuming a Pólya distribution for the simultaneous n-SE emission probabilities. For our previous data with a couple of the carbon foils with different thicknesses, a similar analysis has been carried out. As a result, it was found that the measured spectra could be reproduced as well as by an analysis without placing any restriction on the emission probabilities both for the forward and backward SE emission. The obtained b-parameter of the Pólya distribution, which is a measure of the deviation from a Poisson distribution due to the cascade multiplication by high energy internal SE's, increases monotonically with the incident energy of proton beams. On the other hand, a clear foil-thickness dependence is not observed for the b-parameter. A theoretical model which could reproduced the magnitude of the b-parameter for the SE energy spectra obtained with thick Au, Cu and Al targets is found to overestimates our values for thin carbon foils significantly. Another model calculation is found to reproduce our b-values very well., 2017年09月01日, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 406, 487 - 490, doi

    研究論文(学術雑誌)

  • MeV ion beam extraction into air with a glass capillary filled with He

    石井 邦和; M. Asamura; K. Ishii; H. Ogawa

    2017年, Journal of Physics: Conference Series, 875, 092012

  • Forward–backward correlated secondary electron emission depending on the emergence angle of 1 MeV/u light ions

    石井 邦和; H. Ogawa; S. Amano; K. Ishii; T. Kaneko

    The statistical distributions of the number of forward- and backward-emitted secondary electrons (SE's) from a thin carbon foil have been measured simultaneously in coincidence with foil-transmitted H-1(+), He-4(2+) and Li-6(3+) at a fixed velocity of 1 MeV/u. The emergence angles of the projectiles, theta(em), were varied from 0 to 2 [mrad] for H+ and from 0 to 1 [mrad] for He2+ and Li3+ ions. Irrespective of ion species, measured total SE yields, that is, the average number of simultaneous emitted electrons per projectile, increase with increasing theta(em) both in the forward and backward directions. This trend is consistent with the calculated theta(em)-dependent energy losses of protons penetrating a thin carbon foil. As for the forward-or backward-emitted SE yields, we have obtained a negative forward-backward(F-B) correlation, except for the theta(em) = 0.0 [mrad] emergence of H+ projectiles where a positive correlation has been observed. The negative F-B correlation becomes prominent with increasing the atomic number of the projectile, Z(p). In addition, this correlation appears to become slightly stronger with increasing theta(em). The observed F-B correlation and its Z(p) - and theta(em)-dependences are interpreted from the point of view of production of high energy internal SE's. (C) 2014 Elsevier B.V. All rights reserved., 2015年07月, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 354, 96 - 99, doi;web_of_science

    研究論文(学術雑誌)

  • Measurements of an ion beam diameter extracted into air through a large-bore metal capillary

    Y. Hirano; M. Umigishi; K. Ishii; H. Ogawa

    To extract an ion beam into air, the technique using a single macro-capillary has been paid attention. We have expanded the bore of the metal capillary up to 500 mu m circle divide inlet diameter to increase the beam intensity and have measured the intensity distributions of the extracted 3 MeV proton beam. Furthermore, we have tilted the capillary angle and measured the intensity distributions of the ion beam. In this article, we will present the experimental results together with the simulation which takes the tilt angles of the capillary into account. (C) 2014 Elsevier B.V. All rights reserved., 2015年07月, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 354, 67 - 70, doi;web_of_science

    研究論文(学術雑誌)

  • Energy distribution of an ion beam extracted into air with a large bore metal capillary

    Mika Umigishi; Yoshimi Hirano; Kunikazu Ishii; Hidemi Ogawa

    In order to clarify the transmission properties of an ion beam extracted with a large bore metal capillary into air, we measured the energy distributions of extracted 4.0 MeV alpha particles using a pinhole slit. The metal capillary we used is a conventional injection needle with 500 mu m inner diameter. As a result, we obtained two-dimensional intensity distributions of the ion beam extracted into air with this large bore metal capillary and the energy spectra at each position. We discuss the result of two-dimensional intensity distributions and report the difference of the energy spectra at the center part and at the edge. (C) 2014 Elsevier B.V. All rights reserved., 2015年07月, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 354, 64 - 66, doi;web_of_science

    研究論文(学術雑誌)

  • Forward-backward correlated secondary-electron emission depending on the angle of emergence of protons transmitted through a thin carbon foil

    H. Ogawa; K. Sorai; S. Amano; K. Ishii; T. Kaneko

    The statistical distributions of the secondary electrons (SEs) emitted forward and backward from a thin carbon foil have been measured simultaneously, in coincidence with foil-transmitted protons of 1.0 and 2.5 MeV, as a function of the angle of emergence, θem, of the protons. Irrespective of the incident energy, the measured SE yields increase with increasing angle of emergence in both the forward and the backward directions. As for the forward-backward correlation of the SE emission, the forward- and backward-emitted SE yields induced by 2.5 MeV protons increase gradually with increasing number of SEs emitted in the opposite directions. This positive correlation becomes slightly more pronounced with increasing angle of emergence. On the other hand, for 1.0 MeV, a positive correlation observed at θem = 0 mrad changes to a negative one at θem = 1.0 and 2.0 mrad. © 2014 IOP Publishing Ltd., 2014年04月28日, Journal of Physics B: Atomic, Molecular and Optical Physics, 47 (8), 085201, doi

  • Measurements of an ion beam diameter extracted into air through a glass capillary

    Natsuko Fujita; Atsuko Yamaki; Kunikazu Ishii; Hidemi Ogawa

    To establish techniques for in-air materials analysis using a glass capillary, we studied the beam distribution extracted in air as a function of the distance between the exit of the capillary and the target. We measured three-dimensional intensity distributions of the extracted beams, and compared the observed results with the model calculation. The comparison showed that the glass capillary technique is designed to reduce a divergence of the beam extracted into the air by a beam-focusing effect. © 2013 Published by Elsevier B.V., 2013年11月15日, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 315, 332 - 335, doi

    研究論文(学術雑誌)

  • Secondary electron emission from a thin carbon foil induced by H+, He2+ and Li3+ at fixed velocity of 1 MeV/u

    H. Ogawa; K. Sorai; S. Amano; K. Ishii; T. Kaneko

    The statistical distributions of the number of forward- and backward-emitted secondary electrons (SE's) from a thin carbon foil have been measured simultaneously in coincidence with foil-transmitted H+, He2+ and Li3+ ions of 1 MeV/u in order to examine the forward-backward correlation of the SE emission (refer to as 'FB correlation' hereafter). With these projectiles, we have also measured the energy spectrum of SEs emitted from another carbon foil of similar thickness in the direction around 0 degrees with respect to the incident beams. From the emission statistics data, it is found that both of the inclusive forward and backward SE yields divided by the square of the projectile atomic number (Z(p)) decrease with increasing Z(p). This trend is qualitatively consistent with previous works by other authors. On the other hand, it has been certified from the energy spectra that the yields of binary electron scale well with Z(p)(2). As for the FB correlation, the forward- or backward-emitted SE yield decreases gradually with increasing the number of SEs emitted in the opposite directions. This so-called 'negative FB correlation' appears to be pronounced for He2+ and Li3+ ions compared with that for H+ ions. Since low energy internal SEs do not contribute to the FB correlation, the observed Z(p)-dependent FB correlation seems to be consistent with the well Z(p)(2)-scaled production of high energy internal SEs and the decrease of the inclusive forward and backward SE yields with respect to this scaling. (C) 2013 Elsevier B.V. All rights reserved., 2013年11月, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 315, 291 - 294, doi;web_of_science

    研究論文(学術雑誌)

  • Effective air thickness in a glass capillary for the in-air material analysis

    Natsuko Fujita; Kunikazu Ishii; Hidemi Ogawa

    In order to establish in-air material analysis techniques with a glass capillary, we have measured energy distributions of extracted alpha particles in air using the glass capillary. We have estimated the effective air thickness in the glass capillary and found it to be compatible with a simple calculation., 2013年09月, PHYSICA SCRIPTA, T156, doi;web_of_science

    研究論文(学術雑誌)

  • Effective air thickness in a glass capillary for the in-air material analysis

    Natsuko Fujita; Kunikazu Ishii; Hidemi Ogawa

    In order to establish in-air material analysis techniques with a glass capillary, we have measured energy distributions of extracted alpha particles in air using the glass capillary. We have estimated the effective air thickness in the glass capillary and found it to be compatible with a simple calculation. © 2013 The Royal Swedish Academy of Sciences., 2013年, Physica Scripta, T156, doi

    研究論文(国際会議プロシーディングス)

  • Correlated forward-backward electron emission from a thin carbon foil induced by frozen-charged and charge-changed hydrogen penetration

    H. Ogawa; A. Shimada; M. Kiuchi; M. Hagihara; K. Ishii; T. Kaneko

    Using 2.5-3.5 MeV H-0 and H+ beams penetrating a thin carbon foil, the two-dimensional probabilities of the secondary electron (SE) emission have been investigated as a function of the number of SEs emitted simultaneously in the forward and backward directions. Depending on the charge state of the projectiles in the foil, these probabilities exhibit quite different distributions. The observed difference between the H-0 and H+ penetration can be reproduced quite well by a Monte Carlo simulation assuming the frozen charge state of the projectiles in the foil. Furthermore, another simulation elucidates that a small amount for example only 1% of charge-changed H-0 projectiles change the forward-backward correlation of the SE emission significantly from that induced by frozen-charged ones., 2012年05月, JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 45 (9), 09501, doi;web_of_science

    研究論文(学術雑誌)

  • Development of 4 pi detector to clarify fragmentation dynamics of molecule in collisions with highly charged ions in ultra low energy region

    M. Okano; K. Ishii; H. Ogawa

    We have developed a new detector to study collision dynamics between highly charged ion and molecule in ultra low energy region (<= 1 keV/u). The outline of this detector is a recoil momentum spectroscopy in semispherical energy analyzer. At the conference, we will present progress report of the developments of this detector including TOF spectra of recoil ions in coincidence with HCI after collisions., 2012年, XXVII INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC AND ATOMIC COLLISIONS (ICPEAC 2011), PTS 1-15, 388, doi;web_of_science

    研究論文(国際会議プロシーディングス)

  • Role of loss electrons on forward–backward correlation in electron emission from a thin carbon foil by hydrogen irradiation

    石井 邦和; H Ogawa; A Shimada; M Kiuchi; M Hagihara; K Ishii; T Kaneko

    The number distributions of simultaneously emitted secondary electrons (SEs) from a thin carbon foil have been measured for the incidence of neutral hydrogen beams of 0.5-3.5 MeV together with foil-transmitted protons in order to examine the contribution of the loss electrons to the correlation between the forward and backward SE emission. The forward (backward) SE yields gamma(F) (gamma(B)), that is, the mean numbers of the forward-emitted (backward-emitted) electrons per projectile have been evaluated as a function of the number of backward-emitted (forward-emitted) SEs, n(B) (n(F)). At 1.0-2.5 MeV, gamma(F) (gamma(B)) decreases with increasing n(B) (n(F)). On the other hand, the dependence of gamma(F) (gamma(B)) on n(B) (n(F)) becomes slightly complicated at 3.0 and 3.5 MeV. A Monte Carlo simulation can well reproduce the observed incident energy dependence of the forward-backward correlation, where the loss electrons are found to play a crucial role., 2011年08月, J. Phys. B, 44 (16), doi;web_of_science

    研究論文(学術雑誌)

  • Transmission properties of glass capillaries for MeV proton and alpha particles

    N. Fujita; K. Ishii; H. Ogawa

    In order to clarify the transmission properties of an ion beam extracted with glass capillaries into air, we measured the energy distributions of extracted protons and alpha particles using two kinds of glass capillaries. We observed the 'core' and 'halo' components in the energy spectra and obtained intensity distributions for both components as a function of the tilted angle of the glass capillary. Transmission properties of ion beams extracted with the glass capillaries have been discussed., 2011年06月, PHYSICA SCRIPTA, T144, 014033, doi;web_of_science

    研究論文(学術雑誌)

  • Development of two-dimensional mapping technique by in-air-PIXE with metal capillary

    N. Fujita; K. Ishii; H. Ogawa

    We have developed the two-dimensional mapping technique with in-air-PIXE (2D-PIXE) using a metal capillary as a guide to extract ion beam to air. The metal capillary is the conventional injection needle with a 2001 mu m inside diameter. For the target which is the character made of the copper wires on aluminum basement, 2D-PIXE measurements were performed by irradiating 3 MeV proton beam. As a result, the character was tend to be restored clearly by this method. We discuss about the result of the two-dimensional map from a viewpoint of the signal-to-noise ratio and the resolution. This technique is expected to be applicable to various fields such as biology, nano-technology, archeology and so on. (c) 2010 Elsevier B.V. All rights reserved., 2011年05月, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 269 (9), 1023 - 1025, doi;web_of_science

    研究論文(学術雑誌)

  • Development of an in-air RBS technique using a metal capillary

    Kunikazu Ishii; Natsuko Fujita; Hidemi Ogawa

    We have developed a simple Rutherford backscattering spectroscopic (RBS) method to analyze sample depth profiles in air. To avoid excessive energy loss of projectile ions in air, we have used a 3 MeV proton beam extracted into air with a metal capillary. Using this capillary, we were able to extract a sufficiently large proton beam current to perform in-air RBS and in-air PIXE without requiring any window, such as a thin film, between a vacuum chamber and air. We have validated our technique by analyzing the depth profiles for Au foils of various thicknesses, 0.25, 0.75, and 2.5 mu m. A comparison of the experimental results with a simple theoretical calculation indicates that this technique is useful for analyzing the depth profile of any specimen in air. (C) 2010 Elsevier B.V. All rights reserved., 2011年05月, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 269 (9), 1026 - 1028, doi;web_of_science

    研究論文(学術雑誌)

  • Secondary electron emission from a thin carbon foil induced by equi-velocity protons and electrons of 0.5-3.5 MeV/u

    H. Ogawa; A. Shimada; Y. Inoue; K. Ishii; T. Kaneko

    The statistical distributions of the number of simultaneously forward-emitted secondary electrons (SEs) from a thin carbon foil have been measured with H-0 and H+ projectiles of 0.5-3.5 MeV in coincidence with the foil-transmitted protons, irrespective of projectile incident charge state. From these results, the probabilities of the simultaneous emission of n electrons and the SE yields by loss electrons have been evaluated. At energies of 2.5-3.5 MeV, the obtained emission probabilities and the SE yields induced by loss electrons are larger than the corresponding ones by protons of the same velocity. Furthermore, the material parameter is found to be almost constant and is slightly larger than that for the protons. On the other hand, the forward SE yields by loss electrons is decreasing to zero with decreasing the incident energy. This behavior is consistent with the range-energy relation of electrons in carbon. (c) 2010 Elsevier B.V. All rights reserved., 2011年05月, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 269 (9), 968 - 971, doi;web_of_science

    研究論文(学術雑誌)

  • Transmission properties of glass capillaries for MeV proton and alpha particles

    N. Fujita; K. Ishii; H. Ogawa

    In order to clarify the transmission properties of an ion beam extracted with glass capillaries into air, we measured the energy distributions of extracted protons and alpha particles using two kinds of glass capillaries. We observed the 'core' and 'halo' components in the energy spectra and obtained intensity distributions for both components as a function of the tilted angle of the glass capillary. Transmission properties of ion beams extracted with the glass capillaries have been discussed. © 2011 The Royal Swedish Academy of Sciences., 2011年, Physica Scripta T, T144, doi

    研究論文(国際会議プロシーディングス)

  • Forward-backward correlation and its incident energy dependence in secondary-electron emission from a thin carbon foil upon proton penetration

    H. Ogawa; A. Shimada; M. Kiuchi; M. Hagihara; Y. Inoue; K. Ishii; T. Kaneko

    The statistical distributions of the number of simultaneously emitted secondary electrons (SEs) from a carbon foil have been measured with proton beams of 0.5-3.5 MeV. In this experiment, the forward- and backward-emitted SEs have been measured simultaneously with foil-transmitted protons using a digitizer. As a method to examine how the forward and backward SE emissions correlate to each other, the forward (backward) SE yields γF (γB), that is, the mean number of the forward-emitted (backward-emitted) electrons per projectile, have been evaluated as a function of the number of the backward-emitted (forward-emitted) SEs, nB (nF). At higher incident energies, γF (γB) increases with increasing nB (nF). With decreasing incident energy, this so-called positive correlation becomes weaker and then changes to negative at the lowest incident energy. Although measurements using a slightly thicker foil exhibit just the same trend, the correlation changes from positive to negative at the higher incident energy. For a given foil thickness, the range of the produced binary electron and hence the incident proton energy seems to determine the sign of the correlation. A simple Monte Carlo simulation for the forward and backward SE emission in the present experimental condition can qualitatively reproduce the observed incident-energy dependence of the positive correlation but cannot reproduce the negative one observed at the lower incident energies. © 2010 The American Physical Society., 2010年07月29日, Physical Review A - Atomic, Molecular, and Optical Physics, 82 (1), doi

    研究論文(学術雑誌)

  • Forward-backward correlation and its incident energy dependence in secondary-electron emission from a thin carbon foil upon proton penetration

    H. Ogawa; A. Shimada; M. Kiuchi; M. Hagihara; Y. Inoue; K. Ishii; T. Kaneko

    The statistical distributions of the number of simultaneously emitted secondary electrons (SEs) from a carbon foil have been measured with proton beams of 0.5-3.5 MeV. In this experiment, the forward- and backward-emitted SEs have been measured simultaneously with foil-transmitted protons using a digitizer. As a method to examine how the forward and backward SE emissions correlate to each other, the forward (backward) SE yields gamma F (gamma B), that is, the mean number of the forward-emitted (backward-emitted) electrons per projectile, have been evaluated as a function of the number of the backward-emitted (forward-emitted) SEs, n(B) (n(F)). At higher incident energies, gamma F (gamma B) increases with increasing n(B) (n(F)). With decreasing incident energy, this so-called positive correlation becomes weaker and then changes to negative at the lowest incident energy. Although measurements using a slightly thicker foil exhibit just the same trend, the correlation changes from positive to negative at the higher incident energy. For a given foil thickness, the range of the produced binary electron and hence the incident proton energy seems to determine the sign of the correlation. A simple Monte Carlo simulation for the forward and backward SE emission in the present experimental condition can qualitatively reproduce the observed incident-energy dependence of the positive correlation but cannot reproduce the negative one observed at the lower incident energies., 2010年07月, PHYSICAL REVIEW A, 82 (1), 012902, doi;web_of_science

    研究論文(学術雑誌)

  • Modified Classical Over Barrier Model for Multi-Charged Ion in Collisions with Multiple Electron Target at Energies Below 1 keV/u

    K. Ishii; K. Okuno

    Charge transfer cross sections for Krq+ with Ne are calculated quantitatively by using modified classical over barrier model in order to clarify energy dependence of charge transfer cross sections in low energy region. Essential of this model is taking the induced dipole potential into consideration. As a result, this calculation can reproduce systematic energy dependence of experimental results. This suggests that the bending trajectory of the projectile due to an induced dipole potential should be considered to describe pictures of collisions at low energy regime below 1 keV/u., 2010年06月, PLASMA SCIENCE & TECHNOLOGY, 12 (3), 369 - 371, doi;web_of_science

    研究論文(学術雑誌)

  • Recoil Momentum of Target Ions in Collisions of Ar6++CO2 at Energies Below 300 eV/u

    Y. Inoue; K. Ishii; H. Ogawa

    The collision dynamics and fragmentation process of molecule by highly charged ion impact for single electron capture processes at the low energies below 1 keV/u were studied. The collision energy dependence of the recoil momentum was obtained experimentally and compared it with those calculated by a theoretical model using a deflection function with polarization potential. A fairly good agreement between the measured and calculated results was reached. This suggests that the polarization potential plays a crucial role in the low-energy region., 2010年06月, PLASMA SCIENCE & TECHNOLOGY, 12 (3), 361 - 363, doi;web_of_science

    研究論文(学術雑誌)

  • Molecular fragmentation in collisions of Multiply Charged Ion with diatomic molecule at energies below 1 keV/u

    Y. Inoue; K. Ishii; H. Ogawa

    To clarify collision dynamics of the molecular fragmentation involving the charge-asymmetry effects in collisions of slow Multiply Charged Ions (MCIs) with molecules, we have measured the recoil momentum of non-dissociated molecular ions and the branching ratio of molecular fragmentation for single- and multiple-electron capture collisions of MCIs with the diatomic molecule at collision energies below 1 keV/u. The experimental energy dependence of the recoil momentum of molecular ions was in good agreement with the theoretical dependence obtained using the polarization potential at energies below 100 eV/u. The detailed discussions involving experimental results for branching ratio will be presented at the conference., 2009年12月24日, Journal of Physics: Conference Series, 194 (10), doi

    研究論文(国際会議プロシーディングス)

  • Forward-backward correlation in secondary electron emission from a thin carbon foil by frozen-charged H+ and H-0 penetration

    H. Ogawa; M. Sonoda; Y. Inoue; K. Ishii; T. Kaneko

    The statistical distributions of the number of simultaneously emitted secondary electrons (SE's) from a thin carbon foil have been measured with frozen-charged H-0 and H+ projectiles of 2.5-3.5 MeV. In this experiment, the forward- and backward-emitted electrons have been measured simultaneously together with foil-transmitted particles using a list-mode data taking system in order to investigate their correlation. From the two-dimensional spectra of the emitted SE's, we have derived the probability distributions of the SE emission, P(n(f), n(b)), where n(f) and n(b) represent the number of SE's emitted simultaneously in the forward and backward directions, respectively. Compared with those for the H+ penetration, the emission probabilities for the H-0 penetration exhibit quite different n(f)- and n(b)-dependence. Firstly, P(n(f) = 0; n(b) = 0) takes a remarkably large value. Secondly, among P(n(f), n(b))'s with n(f) + n(b) = (constant), P(n(f) not equal 0, n(b) = 0) and P(n(f) = 0, n(b) not equal 0) become the largest and the second largest probabilities. In contrast, such events that SE's are emitted in both of the forward and backward directions happen with significantly smaller probabilities. These trends are common to all projectile energies measured and seem to be explained by the predominance of the high energy internal SE production for the H-0 penetration due to the screening effect of its bound electron. (C) 2009 Elsevier B. V. All rights reserved., 2009年08月, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 267 (16), 2612 - 2615, doi;web_of_science

    研究論文(学術雑誌)

  • ENERGY GAIN MEASUREMENTS OF Xe9+ IONS IN COLLISIONS WITH He AND Ar

    K. Ishii; K. Yoshimura; Y. Inoue; H. Ogawa

    To clarify a collision dynamics of multiply charged Xe ions with rare gas target, we have measured energy gain spectra of Xe9+ in collisions with He and Ar at 200 q eV and have compared with the theoretical energy gain peak calculated by the classical over barrier model. Using energy levels of excited Xe8+(nl) ions referred to the NIST atomic spectra database, we have determined capture states of Xe9+ ions after single electron transfer., 2009年, 14TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF HIGHLY CHARGED IONS (HCI 2008), 163, 012065, doi;web_of_science

    研究論文(国際会議プロシーディングス)

  • Recoil Momentum of Molecular Ions in Collisions of Ar6+ + N-2 at Energies below 300 eV/u

    Y. Inoue; K. Ishii; H. Ogawa

    To elucidate the collision energy dependence of the recoil momentum of molecular ions after electron transfer, we measure the recoil momentum of non-dissociated molecular ions for single electron capture collisions of Ar6+ with N-2 at collision energies from 7.5 to 240 eV/u. The measured collision energy dependence of the recoil momentum is compared with those obtained by a theoretical calculation using a deflection function with polarization potential. We obtain fairly good agreement between the measured and calculated results., 2009年, 14TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF HIGHLY CHARGED IONS (HCI 2008), 163, 012043, doi;web_of_science

    研究論文(国際会議プロシーディングス)

  • Dependence of secondary-electron emission on the emergent angle of frozen-charged H-0 and H+ projectiles penetrating a thin carbon foil

    H. Ogawa; T. Ohata; K. Ishii; N. Sakamoto; T. Kaneko

    The statistical distributions of the number of secondary electrons (SEs) emitted per projectile from a thin carbon foil under irradiation with the frozen-charged H-0 and H+ projectiles of 2.5-3.5 MeV have been measured as a function of the emergent angle of projectiles in the range from 0.0 to 2.0 mrad in every 0.5 mrad step. The measurement of SEs was carried out in the forward and the backward directions of the incident beam independently. From 0.0 mrad to similar to 1.0 mrad, the SE yields, that is, the mean number of emitted electrons per incident ion, increase with increasing emergent angle and tend to be saturated at larger angles. This is a common trend, regardless of incident energies and charge states of a projectile and also of emitted directions of SEs. Quantitatively, the saturated SE yields at larger angles for the H+ penetration are about 40-50 % larger than those at 0.0 mrad. On the other hand, the corresponding relative increase for the H-0 penetration reaches as high as similar to 100% or more. The observed proton-hydrogen difference is well reproduced in the calculated energy losses by a Monte Carlo simulation including the impact parameter dependent stopping cross sections in a single collision of a hydrogen or a proton with a carbon atom., 2007年08月, PHYSICAL REVIEW A, 76 (2), 024901, doi;web_of_science

    研究論文(学術雑誌)

  • Dependence of secondary electron emission on the emergent angle of 1 MeV/u H+, He2+ and Li3+ penetrating a thin carbon foil

    H. Ogawa; N. Fujimoto; T. Ohata; M. Nagano; K. Ishii; N. Sakamoto; T. Kaneko

    With 1 MeV/u H+, He2+ and Li3+ beams incident on a carbon foil of 2.2 mu g/cm(2) in thickness, the statistical distributions of the number of simultaneously emitted secondary electrons (SE's) have been measured as a function of the emergent angle of foil-transmitted ions in the range from 0.0 mrad to 4.0 mrad for every 0.5 mrad step. The measurement of SE's was carried out in the forward and backward directions of the incident beam independently. The SE yields, that is, the mean number of emitted electrons per incident ion, increase with increasing the emergent angle and saturate at larger angles. This trend is common to the projectiles used and also to the forward and backward directions. As a result of a Monte Carlo simulation taking account of the impact parameter dependent energy loss in a single collision of a proton with a carbon atom, it is found that the calculated energy losses exhibit an emergent angular dependence quite similar to that of the measured SE yields. However the measured SE yields divided by the square of the projectile atomic number, Z(p), becomes smaller with increasing Z(p), especially for the backward emission. A similar observation has been reported by other authors and this trend seems to originate from the preferencial fast internal SE production by heavier projectiles followed by their escape from a thin target foil. (c) 2006 Elsevier B.V. All rights reserved., 2007年03月, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 256 (1), 532 - 536, doi;web_of_science

    研究論文(学術雑誌)

  • Energy loss and small angle scattering of swift protons passing through liquid ethanol target

    M. Kaneda; S. Sato; M. Shimizu; Z. He; K. Ishii; H. Tsuchida; A. Itoh

    We have measured energy and angular distributions of fast protons passing through an ethanol liquid jet target. By applying the Moliere's theory of multiple scattering, we reproduced successfully our experimental results of energy and angular distributions and found that the Moliere's theory is useful for the prediction of energetic proton and heavy ion deflection in liquid materials. Moreover, we compared stopping powers obtained from our experiment with SRIM2003 and found an about 10% discrepancy between them. The present method can become a powerful tool for the measurement of particle stopping in liquids and the other collision interactions. (c) 2007 Published by Elsevier B.V., 2007年03月, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 256 (1), 97 - 100, doi;web_of_science

    研究論文(学術雑誌)

  • Charge changing cross sections in collisions of O-18(7+) with He at energies below 1 keV/u

    K. Ishii; A. Itoh; K. Okuno

    Single electron capture cross sections have been measured for collisions between O7+ and He at energies from 1 eV/q to 1keV/q. Experimental cross sections are compared with those for H-like ions of C5+ and N6+ impacts. Cross sections for C5+ and O7+ are found to depend only weakly on the collision energy, while those for N6+ vary rather strongly. By using a velocity-dependent classical over barrier model, the energy dependency is accounted for qualitatively., 2007年, HCI 2006: 13TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF HIGHLY CHARGED IONS, 58, 279 - +, doi;web_of_science

    研究論文(国際会議プロシーディングス)

  • Energy gain spectroscopy of multiply charged light ions in collisions with hydrogen at 50 eV/u

    K. Ishii; Y. Inoue; H. Ogawa; A. Itoh; N. Sakamoto

    We have measured energy gain spectra for single-electron capture collisions of He-like C, N and O ions with H-2 at 50 eV/u. Energy gain spectra were examined with energy gain functions calculated from a classical over barrier model, and we obtained fairly good agreement between experimental and calculated results. We find that single electron capture occurs predominantly for C4+ and O6+ ions, while for N5+ ions double electron capture followed by transfer ionization is the dominant process in the formation of N3+ ions., 2007年, HCI 2006: 13TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF HIGHLY CHARGED IONS, 58, 275 - +, doi;web_of_science

    研究論文(国際会議プロシーディングス)

  • Energy loss of swift protons in liquid water and ethanol

    A Itoh; M Kaneda; S Satoh; K Ishii; H Tsuchida

    Energy loss measurement has been performed for the first time for MeV energy hydrogen ions passing through a liquid jet target produced by our newly developed liquid-in-vacuum apparatus. Liquid jet targets of water and ethanol were ejected into vacuum through all aperture of 20 pm in diameter. Preliminary experimental results of energy loss spectra are reported. It was found that the energy loss of swift protons in liquids are slightly different from the conventional stopping power data obtained from the SRIM code. However, this discrepancy is possibly attributable to our incorrect estimation of the liquid jet diameter. (c) 2005 Elsevier B.V. All rights reserved., 2006年04月, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 245 (1), 76 - 79, doi;web_of_science

    研究論文(学術雑誌)

  • Charge-changing cross sections of fast H-0,H-1+ and He-0,He-1+,He-2+ projectiles in C-60

    A Itoh; K Nose; Y Hamamoto; T Mizuno; K Ishii

    Electron capture and loss cross sections have been measured for fast light projectile ions of 0.5 MeV H-0,H-1+ and 0.5-2.0 MeV He-4(0,1+,2+) in collisions with C-60. The gaseous target of C-60 was prepared by heating C-60 powder in a target cell to temperatures of 300-500 degrees C, and outgoing charge fractions were measured as a function of the cell temperature. Absolute cross sections are deduced by using two different vapor-pressure data available in literature. Experimental cross sections are examined in comparison with theoretical values obtained from various conventional formulas proposed for atomic targets. In addition, single- and double-electron capture cross sections are also calculated on the basis of a classical model by taking account of the local electron density of C-60. From a complete set of our experimental cross sections, equilibrium charge fractions are also deduced and found to be essentially the same as carbon-foil data, indicating no gas-solid difference., 2005年11月, PHYSICAL REVIEW A, 72 (5), 052718, doi;web_of_science

    研究論文(学術雑誌)

  • Electron-capture cross sections of multiply charged slow ions of carbon, nitrogen, and oxygen in He

    K Ishii; A Itoh; K Okuno

    Experimental cross sections are presented for single- and double-electron capture by Cq+, Nq+, and Oq+, (q= 2-6) ions from He at incident energies of (1.0-1800)q eV. Measurements were performed by using a mini-electron-beam-ion-source apparatus in combination with an octopole-ion-beam-guide. The cross sections are found to vary significantly depending on the collision energy as well as on the projectile species. Some cross sections reveal minima at incident energies of a few eV/u, below which the cross sections increase with decreasing incident energy. To account for the experimental results, we developed a formalism of velocity-dependent capture cross sections within the framework of the classical over barrier model by employing an induced dipole interaction potential between the collision partners. In the calculations, doubly excited levels of projectile ions, formed via simultaneous excitation of the outermost projectile electron, were taken into consideration. It is found that the present model can satisfactorily reproduce the experimentally obtained energy dependence as well as absolute values of the cross sections. We conclude that the attractive induced dipole potential and simultaneous projectile excitation are important in low energy electron-capture collisions., 2004年10月, PHYSICAL REVIEW A, 70 (4), 042716, doi;web_of_science

    研究論文(学術雑誌)

  • Complete photoionization experiment in the region of the 2 delta(g) -> delta(u) shape resonance of the N(2) molecule

    S Motoki; J Adachi; K Ito; K Ishii; K Soejima; A Yagishita; SK Semenov; NA Cherepkov

    Angular distributions of photoelectrons (ADPs) from the 2sigma(g) shell of a fixed-in-space N(2) molecule have been measured for left- and right-elliptically polarized, as well as for linearly polarized, light. From these data a set of dipole matrix elements and phase shift differences characterizing the process has been determined taking into account the acceptance angles of both electron and ion detectors, i.e. the complete experiment has been performed. Good agreement between the experimental and the relevant theoretical values calculated in the random phase approximation is obtained. Based on the results of the complete experiment, three-dimensional ADPs and ions are predicted for different light polarizations., 2002年09月, JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 35 (18), 3801 - 3819, web_of_science

    研究論文(学術雑誌)

  • Simultaneous charge polarization and fragmentation of N-2 molecules in slow keV collisions with Kr8+ ions

    M Ehrich; U Werner; HO Lutz; T Kaneyasu; K Ishii; K Okuno; U Saalmann

    Coulomb fragmentation processes in collisions of Kr8+ ions with nitrogen molecules were studied at projectile energies between 19 and 171 eV/u. At low impact energies (less than or similar to50 eV/u) and small impact parameters, the electron distribution of the fragmenting molecular N-2(q+) ion becomes strongly polarized. This is due to the presence of the slow highly charged projectile during the fragmentation process. Microscopic calculations simultaneously incorporating electron transfer and molecular dissociation give insight into the dynamics of this newly found polarization effect., 2002年03月, PHYSICAL REVIEW A, 65 (3), 03702, doi;web_of_science

    研究論文(学術雑誌)

  • Direct probe of the shape resonance mechanism in 2σg-shell photoionization of the N2 molecule

    石井 邦和

    Angular distributions of photoelectrons from a 2sigma g shell of fixed-in-space N-2 molecules have been measured for left- and right-elliptically polarized and for linearly polarized light at several photon energies in the region of sigma* shape resonance. That allowed the determination of a set of dipole matrix elements and phase shift differences characterizing the process. These data clearly show the enhancement of the f sigma(u) partial cross section in the resonance simultaneously with an abrupt increase of the corresponding phase shift by pi, which is the first experimental demonstration of the nature of the sigma* shape resonance in homonuclear diatomic molecules., 2002年02月, Physical Review Letter, 88 (6), 063003, doi;web_of_science

    研究論文(学術雑誌)

  • Charge-changing cross sections in collisions of Cq+(q=2-5) with He and H-2 at energies below 750 eV/u

    K Ishii; T Tanabe; R Lomsadze; K Okuno

    Charge changing cross sections of Cq+ in collisions with He and H-2 for q = 2-5 have been systematically measured at low energies, ranging from 1-1800eV/q. The measured cross sections for He target for the most part have stronger dependence on the collision energy than those for H-2 target., 2001年, PHYSICA SCRIPTA, T92, 332 - 334, web_of_science

    研究論文(学術雑誌)

  • Single- and multiple-charge changing cross sections in slow collisions of Krq+(q=7-9) with Ne, N-2, O-2 and CO

    K Ishii; K Okuno; N Kobayashi

    Charge changing cross sections of Krq+ in collisions with Ne and CO for q = 7-9 in addition to N-2 and O-2 for q = 8 and electron capture cross sections of He-3(2+) in collisions with N-2, O-2 and CO have been measured at low energies, ranging from 0.006 q to 11.9.q eV/amu and from 0.333 to 1333 eV/amu, respectively. The measured cross sections, except for single-charge changing cross sections of Krq+, are strongly dependent on collision energy. Multiple-charge changing cross sections of Krq+ typically show a minimum in their collision energy dependence. The collision energy characteristics are explained well by taking the induced-dipole interaction potential into consideration., 1999年, PHYSICA SCRIPTA, T80B, 176 - 178, web_of_science

    研究論文(学術雑誌)

  • Double electron capture processes in collisions of He-3(2+) with N-2, O-2 and CO at 1 keV/amu

    K Okuno; T Kaneyasu; K Ishii; M Yoshino; N Kobayashi

    We have newly developed a double coincidence time-of-flight (TOF) instrument for fragment ion spectroscopy of molecular targets in low energy collisions of multiply charged ions. The double electron capture processes in collisions of He-3(2+) ions with molecular targets of N-2, O-2 and CO at 1 keV/amu energy have been revealed by means of the three particle coincidence detection method and their branching ratios have been determined., 1999年, PHYSICA SCRIPTA, T80B, 173 - 175, web_of_science

    研究論文(学術雑誌)

  • SEPARATION OF PEANUT PROTEIN BY PRECIPITATION WITH ACETONE AND ETHANOL AND CHARACTERIZATION OF THE PROTEIN ISOLATES

    T KANEKO; K ISHII

    1980年, JOURNAL OF THE JAPANESE SOCIETY FOR FOOD SCIENCE AND TECHNOLOGY-NIPPON SHOKUHIN KAGAKU KOGAKU KAISHI, 27 (4), 199 - 204, web_of_science

    研究論文(学術雑誌)

MISC

  • Applications of ion channeling in accelerator mass spectrometry

    Akihiro Matsubara; Natsuko Fujita; Kunikazu Ishii

    © 2018 Elsevier B.V. Three applications based on the passage of channeled ions through a crystalline membrane are proposed for the accelerator mass spectrometry (AMS) technology. (i) A channeling degrader for the separation of isobars suppresses the angular straggling even if a sufficient energy difference is created between the AMS nuclide and its isobars using a relatively thick membrane. A proof-of-principle experiment showed its potential comparative advantage. Feasibility will be discussed for two other potential applications; the experimental demonstrations are under consideration. (ii) A channeling stripper simultaneously provides a sufficient stripping function to remove interfering molecules in the AMS and low gas pressure to prevent ion scattering. This helps in overcoming a crucial problem in the development of an (A)MS systems in the range of 50 keV. Surface channeling by grazing incidence onto a stack of mono-crystalline substrates is introduced to address the high particle load. (iii) A novel isobar separation technique, using resonant coherent excitation based on periodical field induced by ions passing through the lattice, assists in controlling the charge state of the AMS nuclide and its isobars directly. For practical use, the thickness of the crystalline membrane should be reduced to satisfy the charge state distribution in the non-equilibrium states., 2018年01月01日, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, doi;url

  • コヒーレント共鳴励起を利用した加速器質量分析の同重体分別に向けた基礎研究I

    松原 章浩; 藤田 奈津子; 石井 邦和

    <p>加速器質量分析(AMS)では,測定目的核種である^10^Be,^36^Cl等の長半減期放射性核種と,この安定同重体(^10^Be に対しては^10^B,^36^Clに対しては^36^S)との分別が必須の技術である.筆者らは,新しい同重体分別技術として,コヒーレント共鳴励起(RCE)で目的核種あるいは同重体を選択的に電離させ両者を分別する方法の開発に取り組んでいる.問題は,イオンのエネルギーが1 MeV/u程度では,結晶内の電子とのランダムな衝突過程でRCEが不鮮明になることである.そこで,非平衡荷電状態を取り入れるなど,幾つかの対策を立てて基礎実験を進めている.本講演では,原子力機構 東濃地科学センターのAMS装置を用いた基礎実験の結果について述べる.</p>, 一般社団法人 日本物理学会, 2017年03月21日, 日本物理学会講演概要集, 72 (0), 592 - 592, j_global;cinii_articles

  • 大気圧中における各種キャピラリを透過したMeVイオンビームの透過特性とその応用

    藤田奈津子; 石井邦和; 小川英巳

    2012年07月28日, 原子衝突学会年会講演概要集, 37th, 32, j_global;url

  • Transmission property and its applications of MeV ion beams with various capillaries

    N. Fujita; K. Ishii; H. Ogawa

    In order to clarify transmission properties of an ion beam extracted with various capillaries into the air, we have measured intensity distributions for the core and the halo components of MeV ion beams using various capillaries. In addition, we have performed in-air-RBS and in-air-PIXE from the point of the application. At the conference, progress report of transmission properties of ion beams with various capillaries and its applications will be presented., IOP PUBLISHING LTD, 2012年, XXVII INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC AND ATOMIC COLLISIONS (ICPEAC 2011), PTS 1-15, 388, doi;web_of_science;url

  • 25pGC-6 各種キャピラリによるMeVイオンビームの透過特性とその応用III(25pGC 融合セッション(原子分子・放射線)(原子分子・キャピラリー),領域1(原子・分子,量子エレクトロニクス,放射線物理))

    藤田 奈津子; 石井 邦和; 小川 英巳

    一般社団法人 日本物理学会, 2012年, 日本物理学会講演概要集, 67 (0), cinii_articles

  • 18pAJ-13 各種キャピラリによるMeVイオンビームの透過特性とその応用IV(18pAJ 融合セッション(原子・分子・キャピラリー),領域1(原子・分子,量子エレクトロニクス,放射線物理))

    藤田 奈津子; 石井 邦和; 小川 英巳

    一般社団法人 日本物理学会, 2012年, 日本物理学会講演概要集, 67 (0), cinii_articles

  • 大気中における各種キャピラリを透過したMeVイオンビーム径測定

    藤田奈津子; 石井邦和; 小川英巳

    2011年08月09日, 原子衝突研究協会年会講演概要集, 36th, 66, j_global;url

  • 各種キャピラリによるMeVイオンビームの透過特性とその応用

    藤田奈津子; 石井邦和; 小川英巳

    2011年03月03日, 日本物理学会講演概要集, 66 (1), 194, j_global;url

  • 26aRD-7 各種キャピラリによるMeVイオンピームの透過特性とその応用(26aRD 融合セッション(原子分子・放射線)(キャピラリー),領域1(原子・分子,量子エレクトロニクス,放射線物理))

    藤田 奈津子; 石井 邦和; 小川 英巳

    一般社団法人 日本物理学会, 2011年, 日本物理学会講演概要集, 66 (0), cinii_articles

  • 22pEE-8 各種キャピラリによるMeVイオンビームの透過特性とその応用II(22pEE 領域1,領域2合同企画講演(キャピラリー),領域1(原子・分子,量子エレクトロニクス,放射線物理))

    藤田 奈津子; 石井 邦和; 小川 英巳

    一般社団法人 日本物理学会, 2011年, 日本物理学会講演概要集, 66 (0), cinii_articles

  • 各種キャピラリによるMeVイオンビームの透過特性

    藤田奈津子; 石井邦和; 小川英巳

    2010年08月09日, 原子衝突研究協会年会講演概要集, 35th, 91, j_global;url

  • 20aTC-9 ガラスキャピラリを用いたイオンビーム物質分析法の開発III(20aTC 放射線物理・原子分子放射線融合(ガラスキャピラリ),領域1(原子・分子,量子エレクトロニクス,放射線物理))

    藤田 奈津子; 石井 邦和; 小川 英巳

    一般社団法人 日本物理学会, 2010年, 日本物理学会講演概要集, 65 (0), cinii_articles

  • 24pRD-5 キャピラリを用いた大気圧PIXEによる二次元マッピングの開発(24pRD 原子分子・放射線物理・融合(キャピラリー・クラスター),領域1(原子・分子,量子エレクトロニクス,放射線物理))

    藤田 奈津子; 石井 邦和; 小川 英巳

    一般社団法人 日本物理学会, 2010年, 日本物理学会講演概要集, 65 (0), cinii_articles

  • Development of In-Air-RBS method with tapered glass capillary

    N. Fujita; K. Ishii; H. Ogawa

    We have developed the material analysis method with MeV ion beam using a tapered glass capillary in air. In the In-Air-RBS, we have measured RBS spectra by protons for Au foils of four different thicknesses in air. At the conference, progress report of In-Air-RBS method involving detailed discussions will be presented., Institute of Physics Publishing, 2009年12月24日, Journal of Physics: Conference Series, 194 (14), doi;url

  • ガラスキャピラリを用いたイオンビーム物質分析法の開発

    藤田奈津子; 石井邦和; 小川英巳

    2009年08月20日, 原子衝突研究協会年会講演概要集, 34th, 94, j_global;url

  • ガラスキャピラリを用いたイオンビーム物質分析法の開発

    藤田奈津子; 石井邦和; 小川英巳

    2009年03月03日, 日本物理学会講演概要集, 64 (1), 154, j_global;url

  • 28aSK-12 ガラスキャピラリを用いたイオンビーム物質分析法の開発(原子分子・放射線融合(多価イオン・イオン-表面・イオン-分子),28aSK 放射線物理(放射線損傷・電離・イオン-表面相互作用),領域1(原子・分子,量子エレクトロニクス,放射線物理))

    藤田 奈津子; 石井 邦和; 小川 英巳

    一般社団法人 日本物理学会, 2009年, 日本物理学会講演概要集, 64 (0), cinii_articles

  • 26aZB-2 ガラスキャピラリを用いたイオンビーム物質分析法の開発II(原子分子・放射線融合,領域1,原子・分子,量子エレクトロニクス,放射線物理)

    藤田 奈津子; 石井 邦和; 小川 英巳

    一般社団法人 日本物理学会, 2009年, 日本物理学会講演概要集, 64 (0), cinii_articles

  • ガラスキャピラリを用いたPIXE分析

    藤田奈津子; 石井邦和; 小川英巳

    2008年08月05日, 原子衝突研究協会研究会講演概要集, 33rd, 45, j_global;url

  • 23aRA-9 奈良女子大学におけるガラスキャピラリを用いたPIXE分析の現状(原子・分子,領域1,原子・分子,量子エレクトロニクス,放射線物理)

    石井 邦和; 楠井 愛; 藤田 奈津子; 松井 千恵; 小川 英巳; 坂本 直樹

    一般社団法人 日本物理学会, 2008年, 日本物理学会講演概要集, 63 (0), cinii_articles

講演・口頭発表等

  • 高速分子イオンと原子分子標的との衝突における立体的衝突現象の解明

    日本物理学会 第73回年次大会, 2018年

  • ヘリウムキャピラリーを用いたMeVイオンビームの大気圧雰囲気下への引き出し

    日本物理学会 第73回年次大会, 2018年

  • イオンチャネリングを利用したAMSの同重体分別

    日本物理学会 第73回年次大会, 2018年

  • コヒーレント共鳴励起を利用した加速器質量分析の同重体分別に向けた基礎研究I

    日本物理学会 第72回年次大会, 2017年

  • 高速分子イオンと原子分子の衝突における立体的衝突効果

    日本物理学会 第72回年次大会, 2017年

  • MeV ion beam extraction into air with a glass capillary filled with He

    ICPEAC XXX, 2017年

  • Stereoscopic collisions of MeV molecular ion with atom and molecule

    ICPEAC XXX, 2017年

  • イオンチャネリングのドーナツ効果における荷電分布

    日本物理学会 2017年秋季大会, 2017年

  • 軽イオン透過による炭素薄膜からの二次電子放出の前方 後方相関の入射粒子依存性

    日本物理学会 2017年秋季大会, 2017年

  • 陽子透過による炭素薄膜からの二次電子放出のポーリア分布による記述

    日本物理学会 2017年秋季大会, 2017年

  • MeV ion beam extraction into air with a glass capillary filled with He

    ICPEAC XXX, 2017年

  • Stereoscopic collisions of MeV molecular ion with atom and molecule

    ICPEAC XXX, 2017年

  • 大口径キャピラリを用いて雰囲気ガス中に引き出されたイオンビームの透過特性

    日本物理学会第71回年次大会, 2016年

  • キャピラリ中におけるイオンビーム透過特性の3次元モンテカルロシミュレーション

    日本物理学会第71回年次大会, 2016年

  • 陽子入射による炭素薄膜からの二次電子放出確率とポーリア分布

    原子衝突学会第41回年会, 2016年

  • 陽子透過による炭素薄膜からの二次電子放出の前方-後方相関の入射エネルギー依存性

    原子衝突学会第41回年会, 2016年

  • 高速分子イオンの解離現象の解明

    原子衝突学会第41回年会, 2016年

  • 大口径メタルキャピラリを用いて雰囲気ガス(空気, He)中に引き出されたイオンビームのエネルギー分布の比較

    日本物理学会 第70回年次大会, 2015年

  • 大口径メタルキャピラリにより大気圧中に引き出されたイオンビームの強度分布シミュレーション

    日本物理学会 第70回年次大会, 2015年

  • The transmission properties of ion beams extracted into atmospheric gas with a large bore metal capillary

    Kyoto Workshop on Positron Sciences "Application of Quantum Beams in the Functional Materials Analysis", 2015年

  • The transmission properties of ion beams extracted into atmospheric gas with a large bore metal capillary

    Kyoto Workshop on Positron Sciences "Application of Quantum Beams in the Functional Materials Analysis", 2015年

  • Energy distribution of an ion beam extracted into air with a large bore metal capillary

    ICACS (the International Conference on Atomic Collisions in Solids), 2014年

  • Measurements of an ion beam diameter extracted into air through a large-bore metal capillary

    ICACS (the International Conference on Atomic Collisions in Solids), 2014年

  • 大口径メタルキャピラリにより大気圧雰囲気下に引き出されたイオンビームのエネルギー分布

    日本物理学会 2014年秋季大会, 2014年

  • 大口径メタルキャピラリにより大気圧中に引き出されたイオンビーム径の評価

    日本物理学会 2014年秋季大会, 2014年

  • Energy distributions of an ion beam extracted into air with the large bore metal capillary

    原子衝突学会第39回年会, 2014年

  • Measurements of an ion beam diameter extracted into air through a large-bore metal capillary

    原子衝突学会第39回年会, 2014年

  • Energy distribution of an ion beam extracted into air with a large bore metal capillary

    ICACS (the International Conference on Atomic Collisions in Solids), 2014年

  • Measurements of an ion beam diameter extracted into air through a large-bore metal capillary

    ICACS (the International Conference on Atomic Collisions in Solids), 2014年

  • 炭素薄膜からの二次電子収量における透過陽子の出射角に対する依存性

    日本物理学会 第68回年次大会, 2013年

  • 1MeV/uの軽イオン透過による炭素薄膜からの二次電子放出の比較II

    日本物理学会 2013年秋季大会, 2013年

  • 高速イオン衝突による分子解離現象の解明I

    日本物理学会 2013年秋季大会, 2013年

  • Transmission property and its applications of MeV ion beams with various capillaries

    Joint Symposium on Collision Processes of Highly-Charged Ions and Related Topics, 2012年

  • 薄膜からの二次電子放出の前方-後方相関における透過陽子の出射角に対する依存性

    日本物理学会 第67回年次大会, 2012年

  • 各種キャピラリによるMeVイオンビームの透過特性とその応用III

    日本物理学会 第67回年次大会, 2012年

  • 4π検出器を用いた低エネルギー多価イオン・分子衝突における分子解離の研究II

    日本物理学会 第67回年次大会, 2012年

  • 大気圧中における各種キャピラリを透過した MeV イオンビームの透過特性とその応用

    原子衝突学会第37回年会, 2012年

  • Effective air thickness in a glass and a metal capillaries for the in-air material analysis

    16th International conference on the physics of highly chaged ions, 2012年

  • 各種キャピラリによるMeVイオンビームの透過特性とその応用Ⅳ

    日本物理学会 2012年秋季大会, 2012年

  • Development of the RIMSEA detector in order to study fragmentation processes of molecular target in collisions with slow highly charged Ions

    Joint Symposium on Collisions of Highly-Charged Ions with Molecules and Related Topics, 2012年

  • Measurement of an ion beam diameter extracted into air though the glass capillary

    25th International Conference on Atomic Collisions in Solids, 2012年

  • Transmission property and its applications of MeV ion beams with various capillaries

    Joint Symposium on Collision Processes of Highly-Charged Ions and Related Topics, 2012年

  • Effective air thickness in a glass and a metal capillaries for the in-air material analysis

    16th International conference on the physics of highly chaged ions, 2012年

  • Development of the RIMSEA detector in order to study fragmentation processes of molecular target in collisions with slow highly charged Ions

    Joint Symposium on Collisions of Highly-Charged Ions with Molecules and Related Topics, 2012年

  • Measurement of an ion beam diameter extracted into air though the glass capillary

    25th International Conference on Atomic Collisions in Solids, 2012年

  • 水素入射による炭素薄膜からの二次電子放出の前方-後方相関

    フォーラム21「イオンビームを用いた物理とその応用」研究会, 2011年

  • 超低エネルギー多価イオン・分子衝突ダイナミクス解明のための4π検出器の開発III

    日本物理学会 第66回年次大会, 2011年

  • 高速水素イオン照射による生成された2次電子のPolya分布による解析

    日本物理学会 第66回年次大会, 2011年

  • 水素入射による炭素薄膜からの二次電子放出

    日本物理学会 第66回年次大会, 2011年

  • 各種キャピラリによるMeVイオンビームの透過特性とその応用

    日本物理学会 第66回年次大会, 2011年

  • Development of 4π detector to clarify fragmentation dynamics of molecule in collisions with highly charged ions in ultra low energy regions

    XXVII International Conference on Photonic, Electronic and Atomic Collisions, 2011年

  • Transmission property and its applications of MeV ion beams with various capillaries

    XXVII International Conference on Photonic, Electronic and Atomic Collisions, 2011年

  • 大気中における各種キャピラリを透過した MeV イオンビーム径測定

    原子衝突研究協会 第36回年会, 2011年

  • 超低エネルギー多価イオン・分子衝突ダイナミクス解明のための 4π検出器の開発

    原子衝突研究協会 第36回年会, 2011年

  • 中性水素透過による炭素薄膜からの前方と後方への二次電子放出の相関

    日本物理学会 2011年秋季大会, 2011年

  • 7Li3+イオン透過によって炭素薄膜から放出される二次電子のエネルギー分布測定

    日本物理学会 2011年秋季大会, 2011年

  • 各種キャピラリによるMeVイオンビームの透過特性とその応用II

    日本物理学会 2011年秋季大会, 2011年

  • 4π検出器を用いた低エネルギー多価イオン・分子衝突における分子解離の研究

    日本物理学会 2011年秋季大会, 2011年

  • Development of 4π detector to clarify fragmentation dynamics of molecule in collisions with highly charged ions in ultra low energy regions

    XXVII International Conference on Photonic, Electronic and Atomic Collisions, 2011年

  • Transmission property and its applications of MeV ion beams with various capillaries

    XXVII International Conference on Photonic, Electronic and Atomic Collisions, 2011年

  • 高速分子イオンの薄膜透過における後方散乱エネルギースペクトル

    田代 圭乃; 石井 邦和; 小川 英巳

    原子衝突学会第45回年会, 2020年12月09日

  • 高速イオンビームによるグラフェン膜透過モンテカルロシミュレーション

    久米 望未; 大塚 百恵; 石井 邦和; 小川 英巳

    原子衝突学会第45回年会, 2020年12月09日

  • グラフェンシートによる高速 C イオンと Si イオンの虹散乱パターン

    大塚 百恵; 久米 望未; 石井 邦和; 小川 英巳

    原子衝突学会第45回年会, 2020年12月09日

  • LiH+ イオンの炭素薄膜透過における分子配向変化

    柴田 美紗; 石井 邦和; 小川 英巳

    原子衝突学会第45回年会, 2020年12月08日

  • LiH+イオンの炭素薄膜透過における分子配向変化

    柴田美紗; 石井邦和; 小川英巳

    2020年日本物理学会秋季大会, 2020年09月08日

  • グラフェンシートによる高速CイオンとSiイオンの虹散乱パターン

    大塚百恵; 久米望未; 石井邦和; 小川英巳

    2020年日本物理学会秋季大会, 2020年09月08日

  • 高速分子イオンと分子標的との衝突における入射粒子の解離過程が及ぼす標的解離パターンへの影響

    寺畑利美; 三浦志真子; 石井邦和; 小川英巳

    日本物理学会第75回年次大会, 2020年03月16日

  • グラフェンシートによる炭素イオンの虹散乱パターンの観測

    福永結衣; 大塚百恵; 石井邦和; 小川英巳

    日本物理学会第75回年次大会, 2020年03月16日

  • LiH+イオンの炭素薄膜透過における分子配向変化の研究

    柴田美紗; 奥山紗帆; 石井邦和; 小川英已

    日本物理学会第75回年次大会, 2020年03月16日

  • Comparison of Experimental and Simulated Rainbow Scattering Patterns of Silicon Ions by Graphene Sheet

    M. Otsuka; Y. Fukunaga; K. Ishii; H. Ogawa

    23rd International Workshop on Inelastic Ion-Surface Collisions, 2019年11月20日

  • Charge State Dependence of Incident Ions for Scattering Pattern by Graphene Sheet

    Yui Fukunaga; M. Otsuka; K. Ishii; H. Ogawa

    23rd International Workshop on Inelastic Ion-Surface Collisions, 2019年11月20日

  • 高速分子イオン・標的分子衝突における入射分子の解離パターンの識別

    三浦 志真子; 寺畑 利美; 石井 邦和; 小川 英巳

    原子衝突学会第44回年会, 2019年09月05日

  • 高速分子イオンと分子標的との衝突における入射粒子の配向が及ぼす 標的解離パターンへの影響

    寺畑 利美; 三浦 志真子; 石井 邦和; 小川 英巳

    原子衝突学会第44回年会, 2019年09月05日

  • グラフェンシートによる散乱パターンの入射イオンの価数依存性

    福永 結衣; 大塚 百恵; 石井 邦和; 小川 英巳

    原子衝突学会第44回年会, 2019年09月05日

  • 高速分子イオンとCO2標的との衝突における立体的衝突現象の解明

    政次美咲; 寺畑利美; 石井邦和; 小川英巳

    日本物理学会第74回年次大会, 2019年03月15日

  • H2+入射による炭素薄膜からの二次電子放出の個数分布における分子効果

    森本夏聖; 小川英巳A; 石井邦和A; 金子敏明

    日本物理学会第74回年次大会, 2019年03月14日

  • 高速分子イオン衝突における標的分子の解離度合いの入射分子種及び配向依存性

    三浦志真子; 伊藤優奈; 石井邦和; 小川英巳

    日本物理学会第76回年次大会, 2021年03月12日

所属学協会

  • 日本物理学会

  • 原子衝突研究協会

  • タンデム加速器及びその周辺技術の研究会

Works(作品等)

  • チャネリング コヒーレント電離による 同重体分別の基礎研究

    2015年04月 - 2017年03月

  • 重水素を含むプラズマ関連分子の解離過程の研究

    2010年04月 - 2011年03月

  • 重水素を含むプラズマ関連分子の解離過程の研究

    2009年04月 - 2010年03月



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