Výsledky vyhledávání - "Furuta, Kazuhiro"

Report

Study on the gain and photon detection efficiency drops of silicon photomultipliers under bright background conditions

Autor: Okumura, Akira, Wakazono, Kawori, Furuta, Kazuhiro, Tajima, Hiroyasu

The use of silicon photomultipliers (SiPMs) in imaging atmospheric Cherenkov telescopes is expected to extend the observation times of very-high-energy gamma-ray sources, particularly within the highest energy domain of 50-300 TeV, where the Cherenko

Externí odkaz: http://arxiv.org/abs/2309.09580

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Development of a blue-mirror multilayer coating on light concentrators for future SiPM cameras

Autor: Okumura, Akira, Haga, Junya, Inoue, Chiaki, Nishimoto, Keiji, Furuta, Kazuhiro, Tajima, Hiroyasu

Silicon photomultipliers (SiPMs) have a few advantages over conventional photomultiplier tubes (PMTs) used in imaging atmospheric Cherenkov telescopes. The first notable characteristic is their higher photon detection efficiency (PDE) of up to about

Externí odkaz: http://arxiv.org/abs/2309.09572

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Development of a UV-transparent Lens Array for Enlarging the Effective Area of Multichannel SiPMs

Autor: Okumura, Akira, Asano, Akira, Furuta, Kazuhiro, Hidaka, Naoya, Nakamura, Yuki, Tajima, Hiroyasu, Zenin, Anatolii

We developed a UV-transparent lens array that can increase the photon detection efficiency of a silicon photomultiplier (SiPM) array comprising of 64 pixels ($3\times3$ mm$^2$ each) and 0.2-mm gaps. Through the plano-convex spherical lens on each $3.

Externí odkaz: http://arxiv.org/abs/1908.05510

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