Energy Determination of Solar Neutrons by the SEDA-AP on-board JEM of ISS

TL;DR

This paper reports on the energy resolution of a solar neutron detector on the ISS, which tracks recoil protons to determine neutron energies, providing valuable data for space environment studies.

Contribution

It introduces the SEDA-FIB detector's energy resolution measurement methods and results, enhancing neutron detection capabilities in space.

Findings

Energy resolution characterized using two methods

Successful operation of the detector on the ISS

Proton energy measurement via the range method

Abstract

A solar neutron detector has been launched on the Japan Exposure Module (JEM) of the International Space Station (ISS) in August 4, 2009. The detector works satsifactory. The detector comprises scintillation fiber and is designated as the Space Environment Data Acquisition (SEDA)-FIB. It tracks the recoil protons induced by neutrons and measurement of the proton energy using the range method. The energy resolution of the detector was measured using the proton beam at Riken. Herein, we report the energy resolution of the FIB detector by two different methods.