8 citations · 13 across the 4 of their papers we have counts for
4 papers
First direction sensitive search for dark matter with a nuclear emulsion detector at a surface site
Atsuhiro Umemoto, Tatsuhiro Naka, Takuya Shiraishi +8
Fine-grained nuclear emulsion films have been developed as a tracking detector with nanometric spatial resolution to be used in direction-sensitive dark matter searches, thanks to…
Environmental sub-MeV neutron measurement at the Gran Sasso surface laboratory with a super-fine-grained nuclear emulsion detector
T. Shiraishi, S. Akamatsu, T. Naka +8
The measurement of environmental neutrons is particularly important in the search for new physics, such as dark matter particles, because neutrons constitute an often-irreducible b…
Development of New Tracking Detector with Fine-grained Nuclear Emulsion for sub-MeV Neutron Measurement
T. Shiraishi, I. Todoroki, T. Naka +3
In this study, we have developed a new sub-MeV neutron detector that has a high position resolution, energy resolution, directional sensitivity, and low background. The detector is…
Optical shape analysis based on discrete Fourier transform and second order moment calculation of the brightness distribution for the detection of sub-micron range low energy tracks
Atsuhiro Umemoto, Tatsuhiro Naka, Toshiyuki Nakano +3
To recognize sub-micron range low energy tracks recorded in a super fine grained nuclear emulsion (Nano Imaging Tracker), an elliptical fitting method was devised to analyze anisot…