Speaker
Description
The EN detector is a novel instrument specifically designed for measuring cosmic ray energy spectra in the knee region. By detecting the abundant thermal neutron components generated from hadron interactions with terrestrial media, it functions as a hadron energy meter to enable more accurate estimation of cosmic ray energy and composition. Thermal neutron capture efficiency serves as a critical parameter for the EN detector, and precise measurement of this parameter is pivotal to experimental success. This study utilized the fast neutron reference field (241Am-Be source) at the Beijing, China Institute of Atomic Energy, for laboratory field calibration. After conducting measurements at three distinct locations and applying theoretical models to account for scattering background, the detector's response characteristics were calculated.
