Search

Your search keyword '"Yanagida, Takayuki"' showing total 2,225 results
Start Over Author "Yanagida, Takayuki"
2,225 results on '"Yanagida, Takayuki"'

214. Development of Oxyfluoride Glasses for X-ray Imaging Applications

Author

Kimura, Hiromi, primary, Shinozaki, Kenji, additional, Sakaeda, Kento, additional, Watanabe, Kenichi, additional, Fujiwara, Takeshi, additional, Tanaka, Masahito, additional, Nakauchi, Daisuke, additional, Kato, Takumi, additional, Kawaguchi, Noriaki, additional, and Yanagida, Takayuki, additional

Published
2023
Full Text
View/download PDF

218. PoGOLino: a scintillator-based balloon-borne neutron detector

Author

Kole, Merlin, Chauvin, Maxime, Fukazawa, Yasushi, Fukuda, Kentaro, Ishizu, Sumito, Jackson, Miranda, Kamae, Tune, Kawaguchi, Noriaki, Kawano, Takafumi, Kiss, Mozsi, Moretti, Elena, Pearce, Mark, Rydström, Stefan, Takahashi, Hiromitsu, and Yanagida, Takayuki

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract

PoGOLino is a balloon-borne scintillator-based experiment developed to study the largely unexplored high altitude neutron environment at high geomagnetic latitudes. The instrument comprises two detectors that make use of LiCAF, a novel neutron sensitive scintillator, sandwiched by BGO crystals for background reduction. The experiment was launched on March 20th 2013 from the Esrange Space Centre, Northern Sweden (geomagnetic latitude of $65^\circ$), for a three hour flight during which the instrument took data up to an altitude of 30.9 km. The detector design and ground calibration results are presented together with the measurement results from the balloon flight., Comment: Accepted for publication in Nuclear Inst. and Methods in Physics Research, A

Published
2014
Full Text
View/download PDF

225. A Balloon-borne Measurement of High Latitude Atmospheric Neutrons Using a LiCAF Neutron Detector

Author

Kole, Merlin, Fukazawa, Yasushi, Fukuda, Kentaro, Ishizu, Sumito, Jackson, Miranda, Kamae, Tune, Kawaguchi, Noriaki, Kawano, Takafumi, Kiss, Mózsi, Moretti, Elena, Salinas, Maria Fernanda Muñoz, Pearce, Mark, Rydström, Stefan, Takahashi, Hiromitsu, and Yanagida, Takayuki

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract

PoGOLino is a scintillator-based neutron detector. Its main purpose is to provide data on the neutron flux in the upper stratosphere at high latitudes at thermal and nonthermal energies for the PoGOLite instrument. PoGOLite is a balloon borne hard X-ray polarimeter for which the main source of background stems from high energy neutrons. No measurements of the neutron environment for the planned flight latitude and altitude exist. Furthermore this neutron environment changes with altitude, latitude and solar activity, three variables that will vary throughout the PoGOLite flight. PoGOLino was developed to study the neutron environment and the influences from these three variables upon it. PoGOLino consists of two Europium doped Lithium Calcium Aluminium Fluoride (Eu:LiCAF) scintillators, each of which is sandwiched between 2 Bismuth Germanium Oxide (BGO) scintillating crystals, which serve to veto signals produced by gamma-rays and charged particles. This allows the neutron flux to be measured even in high radiation environments. Measurements of neutrons in two separate energy bands are achieved by placing one LiCAF detector inside a moderating polyethylene shield while the second detector remains unshielded. The PoGOLino instrument was launched on March 20th 2013 from the Esrange Space Center in Northern Sweden to an altitude of 30.9 km. A description of the detector design and read-out system is presented. A detailed set of simulations of the atmospheric neutron environment performed using both PLANETOCOSMICS and Geant4 will also be described. The comparison of the neutron flux measured during flight to predictions based on these simulations will be presented and the consequences for the PoGOLite background will be discussed., Comment: Presented at 2013 IEEE Nuclear Science Symposium, Seoul, Korea. October 27 - November 2, 2013

Published
2013

Catalog

Books, media, physical & digital resources
See catalog results