Zobrazeno 1 - 10
of 105
pro vyhledávání: '"YOSHIKAWA, Kei"'
Autor:
Oka, Tomohiko, Ogio, Shingo, Abe, Mitsuru, Hamaguchi, Kenji, Ikeda, Tomonori, Kubo, Hidetoshi, Kurosawa, Shunsuke, Miuchi, Kentaro, Mizumura, Yoshitaka, Nakamura, Yuta, Sawano, Tatsuya, Takada, Atsushi, Takemura, Taito, Tanimori, Toru, Yoshikawa, Kei
Although the MeV gamma-ray band is a promising energy-band window in astrophysics, the current situation of MeV gamma-ray astronomy significantly lags behind those of the other energy bands in angular resolution and sensitivity. An electron-tracking
Externí odkaz:
http://arxiv.org/abs/2403.05128
Autor:
Ikeda, Tomonori, Takada, Atsushi, Takemura, Taito, Yoshikawa, Kei, nakamura, Yuta, Onozaka, Ken, Abe, Mitsuru, Tanimori, Toru
The Mega electron volt (MeV) gamma-ray observation is a promising diagnostic tool for observing the universe. However, the sensitivity of MeV gamma-ray telescopes is limited due to peculiar backgrounds, restricting the application of MeV gamma rays f
Externí odkaz:
http://arxiv.org/abs/2306.02700
Autor:
Takada, Atsushi, Takemura, Taito, Yoshikawa, Kei, Mizumura, Yoshitaka, Ikeda, Tomonori, Nakamura, Yuta, Onozaka, Ken, Abe, Mitsuru, Hamaguchi, Kenji, Kubo, Hidetoshi, Kurosawa, Shunsuke, Miuchi, Kentaro, Saito, Kaname, Sawano, Tatsuya, Tanimori, Toru
Publikováno v:
The Astrophyssical Journal, Volume 930 (2022), 6
MeV gamma-rays provide a unique window for the direct measurement of line emissions from radioisotopes, but observations have made little significant progress after COMPTEL/{\it CGRO}. To observe celestial objects in this band, we are developing an e
Externí odkaz:
http://arxiv.org/abs/2107.00180
Autor:
Ikeda, Tomonori, Takada, Atsushi, Abe, Mitsuru, Yoshikawa, Kei, Tsuda, Masaya, Ogio, Shingo, Sonoda, Shinya, Mizumura, Yoshitaka, Yoshida, Yura, Tanimori, Toru
Publikováno v:
PTEP (2021), 083F01
Electron-tracking Compton camera, which is a complete Compton camera with tracking Compton scattering electron by a gas micro time projection chamber, is expected to open up MeV gamma-ray astronomy. The technical challenge for achieving several degre
Externí odkaz:
http://arxiv.org/abs/2105.02512
Imaging Polarimeter for a Sub-MeV Gamma-Ray All-Sky Survey using an Electron-Tracking Compton Camera
Autor:
Komura, Shotaro, Takada, Atsushi, Mizumura, Yoshitaka, Miyamoto, Shohei, Takemura, Taito, Kishimoto, Tetsuro, Kubo, Hidetoshi, Kurosawa, Shunsuke, Matsuoka, Yoshihiro, Miuchi, Kentaro, Mizumoto, Tetsuya, Nakamasu, Yuma, Nakamura, Kiseki, Oda, Makoto, Parker, Joseph D., Sawano, Tatsuya, Sonoda, Shinya, Tanimori, Toru, Tomono, Dai, Yoshikawa, Kei
X-ray and gamma-ray polarimetry is a promising tool to study the geometry and the magnetic configuration of various celestial objects, such as binary black holes or gamma-ray bursts (GRBs). However, statistically significant polarizations have been d
Externí odkaz:
http://arxiv.org/abs/1703.07600
Autor:
Tanimori, Toru, Mizumura, Yoshitaka, Takada, Atsushi, Miyamoto, Shohei, Takemura, Taito, Kishimoto, Tetsuro, Komura, Shotaro, Kubo, Hidetoshi, Kurosawa, Shunsuke, Matsuoka, Yoshihiro, Miuchi, Kentaro, Mizumoto, Tetsuya, Nakamasu, Yuma, Nakamura, Kiseki, Parker, Joseph D., Sawano, Tatsuya, Sonoda, Shinya, Tomono, Dai, Yoshikawa, Kei
Publikováno v:
Scientific Reports 7, 41511 (2017)
Since the discovery of nuclear gamma-rays, its imaging has been limited to pseudo imaging, such as Compton Camera (CC) and coded mask. Pseudo imaging does not keep physical information (intensity, or brightness in Optics) along a ray, and thus is cap
Externí odkaz:
http://arxiv.org/abs/1702.01483
Autor:
Yoshikawa, Kei, Maeda, Kazuhisa
Publikováno v:
Cosmetics (2079-9284); Jun2024, Vol. 11 Issue 3, p82, 16p
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Hypertension Research; Mar2024, Vol. 47 Issue 3, p747-759, 13p
Autor:
Yoshikawa, Kei Kamada, Rei Sasaki, Taketoshi Tomida, Isao Takahashi, Masao Yoshino, Takahiko Horiai, Rikito Murakami, Vladimir Kochurikhin, Yasuhiro Shoji, Koichi Kakimoto, Akira
Publikováno v:
Crystals; Volume 13; Issue 6; Pages: 921
β-Ga2O3 is a well-known semiconductor material for power devices and other applications. Recently, β-Ga2O3 has also been reported as a scintillator material with a light yield of approximately 8400 ph./MeV, scintillation decay time of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::ce0835f18a1f25e9f81e9be944c341d3