A neutron detector with spatial resolution of submicron using fine-grained nuclear emulsion

TL;DR

This paper presents a neutron detector with submicron spatial resolution using 6Li-loaded fine-grained nuclear emulsion, capable of observing neutron capture events and measuring detection efficiency with cold neutrons.

Contribution

The development of a novel neutron detector achieving submicron spatial resolution using 6Li-loaded nuclear emulsion and experimental validation.

Findings

Observed neutron capture tracks in the emulsion.

Estimated spatial resolution from grain density.

Measured detection efficiency with cold neutrons.

Abstract

We have been developing a neutron detector with spatial resolution of submicron by loading 6Li into fine-grained nuclear emulsion. By exposure to thermal neutrons, tracks from neutron capture events were observed. From their grain density, spatial resolution was estimated. Detection efficiency was also measured by an experiment with cold neutrons.