57 citations · 69 across the 2 of their papers we have counts for
10 papers
Estimation of radiative half-life of Th by half-life measurement of other nuclear excited states in Th
Y. Shigekawa, A. Yamaguchi, K. Suzuki +8
We perform coincidence measurements between particles and rays from a U source to determine the half-lives of the excited state in a Th nucleus. We first pr…
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…
Study of the Decay at the J-PARC KOTO Experiment
KOTO Collaboration, J. K. Ahn, B. Beckford +68
The rare decay was studied with the dataset taken at the J-PARC KOTO experiment in 2016, 2017, and 2018. With a single event sensitivity of $( 7.20 \p…
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…
X-ray pumping of the Th-229 nuclear clock isomer
Takahiko Masuda, Akihiro Yoshimi, Akira Fujieda +27
Thorium-229 is a unique case in nuclear physics: it presents a metastable first excited state Th-229m, just a few electronvolts above the nuclear ground state. This so-called isome…