176 citations · 574 across the 22 of their papers we have counts for
10 papers · 1 filter
High-sensitivity low-noise photodetector using large-area silicon photomultiplier
Takahiko Masuda, Ayami Hiramoto, Daniel G. Ang +9
The application of silicon photomultiplier (SiPM) technology for weak-light detection at a single photon level has expanded thanks to its better photon detection efficiency in comp…
Suppression of the optical crosstalk in a multi-channel silicon photomultiplier array
Takahiko Masuda, Daniel G. Ang, Nicholas R. Hutzler +8
We propose and study a method of optical crosstalk suppression for silicon photomultipliers (SiPMs) using optical filters. We demonstrate that attaching absorptive visible bandpass…
Absolute X-ray energy measurement using a high-accuracy angle encoder
Takahiko Masuda, Tsukasa Watanabe, Kjeld Beeks +16
This paper presents an absolute X-ray photon energy measurement method that uses a Bond diffractometer. The proposed system enables the prompt and rapid in-situ measurement of phot…
Development of a measurement system enabling the reconstruction of gamma-ray time spectra by simultaneous recording of energy and time information
Hiroyuki Tajima, Shinji Kitao, Ryo Masuda +4
We developed a measurement system that enables the reconstruction of γ-ray time spectra in cascade decay schemes. As this system records all the time and energy information of γ-ra…
Energy response of X-rays under high flux conditions using a thin APD for the energy range of 6-33 keV
T. Masuda, T. Hiraki, H. Kaino +10
This paper reports on the demonstration of a high-rate energy measurement technique using a thin depletion layer silicon avalanche photodiode (Si-APD). A dedicated amplitude-to-tim…
Fast X-ray detector system with simultaneous measurement of timing and energy for a single photon
T. Masuda, S. Okubo, H. Hara +12
We developed a fast X-ray detector system for nuclear resonant scattering (NRS) experiments. Our system employs silicon avalanche photo-diode (Si-APD) as a fast X-ray sensor. The s…
Development of a low-mass and high-efficiency charged particle detector
D. Naito, Y. Maeda, N. Kawasaki +8
We developed a low-mass and high-efficiency charged particle detector for an experimental study of the rare decay . The detector is important to suppres…
Long-lived neutral-kaon flux measurement for the KOTO experiment
T. Masuda, J. K. Ahn, S. Banno +54
The KOTO ( at Tokai) experiment aims to observe the CP-violating rare decay by using a long-lived neutral-kaon beam produced by the 30 GeV proton…
An aerogel Cherenkov detector for multi-GeV photon detection with low sensitivity to neutrons
Y. Maeda, N. Kawasaki, T. Masuda +10
We describe a novel photon detector which operates under an intense flux of neutrons. It is composed of lead-aerogel sandwich counter modules. Its salient features are high photon…
Photon-Veto Counters at the Outer Edge of the Endcap Calorimeter for the KOTO Experiment
T. Matsumura, T. Shinkawa, H. Yokota +17
The Outer-Edge Veto (OEV) counter subsystem for extra-photon detection from the backgrounds for the? decay is located at the outer edge of the endcap Cs…