Search Results - "Furuta, Yoshihiro"
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Discovery of recombining plasma from the faintest GeV supernova remnant HB 21 and a possible scenario for cosmic rays escaping from supernova remnant shocks
Published in Publications of the Astronomical Society of Japan (01-08-2018)“…Abstract We present an X-ray study of the GeV gamma-ray supernova remnant (SNR) HB 21 with Suzaku. HB 21 is interacting with molecular clouds, and is the…”
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2
Evidence for a 36 ks phase modulation in the hard X-ray pulses from the magnetar 1E 1547.0−5408
Published in Publications of the Astronomical Society of Japan (01-06-2016)“…The Suzaku data for the highly variable magnetar 1E 1547.0−5408, obtained during the 2009 January activity, were reanalyzed. The 2.07 s pulsation, detected in…”
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3
A REMOTE CONTINUOUS AIR MONITORING SYSTEM FOR MEASURING AIRBORNE ALPHA CONTAMINATION
Published in Radiation protection dosimetry (13-07-2020)“…We developed a remote continuous air monitoring (RCAM) system. The RCAM system consisted of a personal air monitor and a robot. The personal air monitor…”
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4
Study of the progenitor of the magnetar 1E 2259+586 through Suzaku observations of the associated supernova remnant CTB 109
Published in Publications of the Astronomical Society of Japan (01-06-2017)“…Abstract We present a study of the progenitor of the magnetar 1E 2259+586, from Suzaku observations of the associated supernova remnant CTB 109. The Suzaku…”
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5
Thundercloud Project: Exploring high-energy phenomena in thundercloud and lightning
Published in Progress of theoretical and experimental physics (01-10-2020)“…Abstract We have designed, developed, and deployed a distributed sensor network to observe high-energy ionizing radiation, primarily gamma rays, from winter…”
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6
In-situ detection of high-energy beta ray emitter 90Sr/90Y inside the Fukushima Daiichi Nuclear Power Station Unit 3 reactor building using a liquid light guide Cherenkov counter
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-01-2025)“…We have developed a method to directly detect 90Sr/90Y under a high gamma ray background using a liquid light guide Cherenkov counter. Cherenkov radiation has…”
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7
Photonuclear reactions triggered by lightning discharge
Published in Nature (London) (23-11-2017)“…Ground-based observations during a thunderstorm provide conclusive evidence of positrons being produced after lightning, confirming that lightning can trigger…”
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8
Quantitative visualization of a radioactive plume with harmonizing gamma-ray imaging spectrometry and real-time atmospheric dispersion simulation based on 3D wind observation
Published in Journal of nuclear science and technology (02-11-2023)“…To propose a novel monitoring method for the quantitative visualization of 3D distribution of a radioactive plume in the vicinity of release point and source…”
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9
Downward Terrestrial Gamma-Ray Flash Observed in a Winter Thunderstorm
Published in Physical review letters (09-08-2019)“…During a winter thunderstorm on 24 November 2017, a strong burst of gamma rays with energies up to ∼10 MeV was detected coincident with a lightning discharge,…”
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10
Gamma-ray glow preceding downward terrestrial gamma-ray flash
Published in Communications physics (25-06-2019)“…Two types of high-energy events have been detected from thunderstorms. One is “terrestrial gamma-ray flashes” (TGFs), sub-millisecond emissions coinciding with…”
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11
Bilateral Oculomotor Nerve Palsies Due to Posterior Cerebral Arterial Compression Relieved by Microvascular Decompression: Case Report
Published in Neurologia medico-chirurgica (1991)“…A 59-year-old male developed peripheral oculomotor nerve paresis due to compression by the left posterior cerebral artery (PCA), which was successfully treated…”
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12
Multiple Cerebral Infarcts Caused by Emboli from Carotid Atheroma: A Case Confirmed by Indium-111 Platelet Scintigraphy
Published in Neurologia medico-chirurgica (1991)“…A 47-year-old male presented with frequent transient ischemic attacks (TIAs) of weakness of the left upper extremity. Computed tomography demonstrated multiple…”
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13
Surgical Excision of Familial Cavernous Angioma in the Pontomedullary Region: Case Report
Published in Neurologia medico-chirurgica (1990)“…The authors report on a surgical case of cavernous angioma in the pontomedullary region. A 60-year-old male exhibited a progressive neurological deficit…”
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14
Photoneutron Detection in Lightning by Gadolinium Orthosilicate Scintillators
Published 19-05-2020“…During a winter thunderstorm on November 24, 2017, a downward terrestrial gamma-ray flash took place and triggered photonuclear reactions with atmospheric…”
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15
Catalog of Gamma-ray Glows during Four Winter Seasons in Japan
Published 03-08-2021“…In 2015 the Gamma-Ray Observation of Winter Thunderstorms (GROWTH) collaboration launched a mapping observation campaign for high-energy atmospheric phenomena…”
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16
Thundercloud Project: Exploring high-energy phenomena in thundercloud and lightning
Published 27-07-2020“…We designed, developed, and deployed a distributed sensor network aiming at observing high-energy ionizing radiation, primarily gamma rays, from winter…”
Get full text
Journal Article -
17
Downward Terrestrial Gamma-ray Flash observed in Winter Thunderstorm
Published 14-07-2019“…During a winter thunderstorm on 2017 November 24, a strong burst of gamma rays with energies up to $\sim$10~MeV was detected coincident with a lightning…”
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Journal Article -
18
Discovery of recombining plasma from the faintest GeV SNR HB 21 and a possible scenario of the cosmic ray escaping from SNR shocks
Published 08-05-2018“…We present an X-ray study of the GeV gamma-ray supernova remnant (SNR) HB 21 with Suzaku. HB 21 is interacting with molecular clouds and the faintest in the…”
Get full text
Journal Article -
19
Mapping Observation Project of High-Energy Phenomena during Winter Thunderstorms in Japan
Published 15-11-2018“…The Gamma-Ray Observation of Winter Thunderclouds (GROWTH) collaboration has been performing observation campaigns of high-energy radiation in coastal areas of…”
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Journal Article -
20
Discovery of a 36 ks Phase Modulation in the Hard X-ray Pulses from the Magnetar 1E 1547.0$-$5408
Published 10-02-2016“…The Suzaku data of the highly variable magnetar 1E 1547.0$-$5408, obtained during the 2009 January activity, were reanalyzed. The 2.07 s pulsation of the…”
Get full text
Journal Article