Development of New Tracking Detector with Fine-grained Nuclear Emulsion for sub-MeV Neutron Measurement

no code implementations • 29 Jan 2021 • T. Shiraishi, I. Todoroki, T. Naka, A. Umemoto, R. Kobayashi, O. Sato

First, we calibrated the performance of NIT device for detecting monochromatic neutrons with sub-MeV energy generated by nuclear fusion reactions, and the detection efficiency for recoil proton tracks of more than 2 um range was consistently 100\% (the 1 sigma lower limit was 83%) in accordance with expectations by manual based analysis.

Instrumentation and Detectors

First measurement using a nuclear emulsion detector of the $ν_μ$ charged-current cross section on iron around the 1$\,$GeV energy region

no code implementations • 9 Dec 2020 • H. Oshima, T. Matsuo, A. Ali, S. Aoki, L. Berns, T. Fukuda, Y. Hanaoka, Y. Hayato, A. Hiramoto, A. K. Ichikawa, H. Kawahara, T. Kikawa, R. Komatani, M. Komatsu, K. Kuretsubo, T. Marushima, H. Matsumoto, S. Mikado, A. Minamino, K. Mizuno, Y. Morimoto, K. Morishima, N. Naganawa, M. Naiki, M. Nakamura, Y. Nakamura, N. Nakano, T. Nakano, T. Nakaya, A. Nishio, T. Odagawa, S. Ogawa, H. Rokujo, O. Sato, H. Shibuya, K. Sugimura, L. Suzui, Y. Suzuki, H. Takagi, S. Takahashi, T. Takao, Y. Tanihara, R. Watanabe, K. Yamada, K. Yasutome, M. Yokoyama

The data samples correspond to 4. 0$\times$10$^{19}$ protons on target, and the neutrino mean energy is 1. 49$\,$GeV.

High Energy Physics - Experiment