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Featured researches published by Seiya Masuda.


Solar Physics | 2017

Measurement of Solar Neutrons on 05 March 2012, Using a Fiber-Type Neutron Monitor Onboard the Attached Payload to the ISS

Kiyokazu Koga; Y. Muraki; Seiya Masuda; S. Shibata; Haruhisa Matsumoto; H. Kawano

The solar neutron detector Space Environment Data Acquisition Equipment – Attached Payload (SEDA-FIB) onboard the International Space Station (ISS) detected several events from the solar direction associated with three large solar flares observed on 05 (X1.1), 07 (X5.4), and 09 (M6.3) March 2012. In this study, we focus on the interesting event of 05 March, present the temporal profiles of the neutrons, and discuss the physics that may be related to a possible acceleration scenario for ions above the solar surface. We compare our data with images of the flares obtained by the ultraviolet telescope Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO).


Astroparticle Physics | 2008

Detection of high-energy solar neutrons and protons by ground level detectors on April 15, 2001

Y. Muraki; Y. Matsubara; Seiya Masuda; S. Sakakibara; T. Sako; K. Watanabe; Rolf Bütikofer; Erwin Flückiger; A. Chilingarian; G. Hovsepyan; F. Kakimoto; T. Terasawa; Y. Tsunesada; H. Tokuno; A. Velarde; P. A. Evenson; J. Poirier; Takeshi Sakai


Archive | 2003

Solar Neutron Event in Association with a Large Solar Flare on August 25, 2001

Kiyomasa Watanabe; Yasushi Muraki; Y. Matsubara; Kazuaki Murakami; T. K. Sako; H. Tsuchiya; Seiya Masuda; M. Yoshimori; Nobuaki Ohmori; P. Miranda; N. J. Martinic; R. Ticona; A. Velarde; F. Kakimoto; S. Ogio; Y. Tsunesada; H. Tokuno; Yuji Shirasaki


Archive | 2005

Search for solar neutrons associated with proton flares in solar cycle 23

Y. Matsubara; Y. Muraki; T. K. Sako; Kiyomasa Watanabe; Seiya Masuda; Takeo Sakai; S. Shibata; Erwin Flückiger; Rolf Bütikofer; Ashot A. Chilingarian; G. Hovsepyan; Y. H. Tan; T. Yuda; M. Ohnishi; H. Tsuchiya; Y. Katayose; Ryusuke Ogasawara; Yoshihiko Mizumoto; Masao Nakagiri; Atsushi Miyashita; A. Velarde; R. Ticona; N. J. Martinic


Solar Physics | 2016

Simultaneous Observation of Solar Neutrons from the International Space Station and High Mountain Observatories in Association with a Flare on July 8, 2014

Y. Muraki; Diego Lopez; Kiyokazu Koga; F. Kakimoto; T. Goka; L.X. González; Seiya Masuda; Y. Matsubara; Haruhisa Matsumoto; P. Miranda; O. Okudaira; T. Obara; J. Salinas; T. Sako; S. Shibata; R. Ticona; Y. Tsunesada; J.F. Valdés-Galicia; Kenichi Watanabe; T. Yamamoto


Archive | 2005

Possible >10GeV Particle Detection in Association with the 28 May 2003 Solar Flare

T. K. Sako; Y. Muraki; Seiya Masuda; Yukihiro Matsubara; Kiyomasa Watanabe; H. Menjo; H. Tsuchiya; Takeo Sakai; Shigenobu Shibata; Ryusuke Ogasawara; Yoshihiko Mizumoto; M. Kakgiri; Atsushi Miyashita


Advances in Space Research | 2003

Evolution of flare ribbons and energyrelease

Ayumi Asai; Seiya Masuda; Takaaki Yokoyama; Masumi Shimojo; H. Kurokawa; Takako T. Ishii; Kazunari Shibata


Archive | 2010

Relationship between solar radio type-I noise storm and Coronal Mass Ejection

Katsumasa Iwai; Seiya Masuda; Yoshizumi Miyoshi; Masumi Shimojo; Hiroaki Misawa; Fuminori Tsuchiya; Akira Morioka


Archive | 2010

Hard X-ray and microwave sources located around the apex of a solar flare loop

Seiya Masuda; Masumi Shimojo; Kiyomasa Watanabe; Takashi Minoshima; Koichiro Yaji


Archive | 2008

Simultaneous Detection of High-Energy Solar Neutrons and Protons at Chacaltaya Observatory on April 15, 2001

Y. Muraki; Y. Matsubara; Seiya Masuda; E. Al

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Masumi Shimojo

Graduate University for Advanced Studies

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H. Tsuchiya

Graduate University for Advanced Studies

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F. Kakimoto

Tokyo Institute of Technology

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Y. Tsunesada

Tokyo Institute of Technology

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