Performance of nitrogen neutron monitor at a high intense neutron instrument and its comparison with other neutron monitors

Harada, Masahide   ; Yamaguchi, Yuji   ; Takata, Shinichi  ; Oikawa, Kenichi   ; Oku, Takayuki   

Neutron monitors used in neutron instruments at a high intense neutron source is required to monitor high-intensity neutron beams. We have studied and prototyped a neutron monitor with nitrogen gas as neutron detection gas. In this study, we conducted a performance experiment of the nitrogen neutron monitor at NOBORU, a neutron instrument at the Materials and Life Science Experimental Facility of the J-PARC center. At the same time, measurements with other neutron monitors were done for comparison. In this presentation, we will explain the development status of the nitrogen neutron monitor and the results of the performance experiment.