Search Results - "Yuyama, Takahiro"
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Characterization of a Gafchromic film for the two-dimensional profile measurement of low-energy heavy-ion beams
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-08-2016)“…The feasibility of the transverse intensity distribution measurement of low-energy (keV/u range) heavy-ion beams using radiochromic films is experimentally…”
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Use of a Gafchromic film HD-V2 for the profile measurement of energetic ion beams
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-09-2017)“…The coloration response of a radiochromic film, Gafchromic HD-V2, to ion beams was investigated to apply the film to measuring the transverse intensity…”
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3
Control of the size of etchable ion tracks in PVDF – Irradiation in an oxygen atmosphere and with fullerene C60
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-12-2019)“…We pursue the possibility of controlling the size of etchable ion tracks of poly(vinylidene-fluoride) (PVDF) films. At first, 330 MeV 40Ar ions were irradiated…”
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Study on ion irradiation response of Gafchromic films for the intensity distribution measurement of a large-area beam
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-11-2013)“…It is required to precisely evaluate the large-area transverse intensity distribution of various ion beams applied to materials and biological research at an…”
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5
Formation of hollow ion beams of various shapes using multipole magnets
Published in Progress of theoretical and experimental physics (01-05-2019)“…Abstract This study describes a novel and simple beam-focusing method for the formation of a charged-particle beam with a hollow transverse intensity…”
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Formation of a large-area uniform ion beam using multipole magnets in the TIARA cyclotron
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-06-2011)“…The formation of an ion beam with a uniform transverse intensity distribution based on a nonlinear focusing method has been studied at the azimuthally varying…”
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Microscopic evaluation of the absolute fluence distribution of a large-area uniform ion beam using the track-etching technique
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-11-2013)“…The absolute fluence distribution of a large-area uniform beam was investigated microscopically via track etching of an Ar-irradiated polyethylene…”
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8
Useful technique for analysis and control of the acceleration beam phase in the azimuthally varying field cyclotron
Published in Review of scientific instruments (01-03-2010)“…We have developed a new technique for analysis and control of the acceleration beam phase in the cyclotron. In this technique, the beam current pattern at a…”
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Transformation of the Transverse Beam Intensity Distribution by Sextupole Focusing in a Transport Line
Published in Journal of the Physical Society of Japan (15-06-2012)“…We investigate the transformation of the transverse intensity distribution of a charged-particle beam focused by one or two sextupole magnets in a beam…”
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10
Ion beam induced luminescence of lanthanide complexes in organic solvents irradiated by hydrogen and argon ion beams
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-09-2024)“…In this study, the structures of lanthanide complexes in organic solvents for minor actinide recovery were evaluated by measuring ion beam induced luminescence…”
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Ion beam induced luminescence analysis of europium complexes in styrene-divinylbenzene copolymer-coated spherical silica by proton and argon ion beams irradiation
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-09-2023)“…Ion beam induced luminescence (IBIL) analysis of adsorbents containing Eu complexes was carried out using a 3-MV single-ended accelerator and an azimuthally…”
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12
Shaping ion beams into hollow profiles using sextupole magnets
Published in High energy density physics (01-08-2020)“…It is essential to properly shape the intensity distribution or irradiation field of high-energy charged-particle beams to improve their utilization, e.g.,…”
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13
Transformation of the Transverse Beam Intensity Distribution by Sextupole Focusing in a Transport Line
Published in Journal of the Physical Society of Japan (01-06-2012)“…We investigate the transformation of the transverse intensity distribution of a charged-particle beam focused by one or two sextupole magnets in a beam…”
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14
Quick change of ion species of heavy-ion microbeam by cocktail beam acceleration technique with the JAEA AVF cyclotron
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (15-06-2009)“…A heavy-ion microbeam with hundreds of MeV energy is utilized for research in biotechnology and materials science at the JAEA AVF cyclotron facility. Beam…”
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15
High-Power Microwave Generation by Virtual Cathode Oscillator
Published in 2005 IEEE Pulsed Power Conference (01-06-2005)“…Virtual cathode oscillators (VCO) were studied for high-power microwave (HPM) generation. Different configurations of VCO were compared in diode behavior and…”
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