# Measurement of the response of a liquid scintillation detector to monoenergetic electrons and neutrons

## TL;DR

This study characterizes the response of a liquid scintillation detector to monoenergetic electrons and neutrons, demonstrating linearity, resolution, and non-linearities at specific energies, with comparison to simulations.

## Contribution

It provides detailed measurements of the liquid scintillator's response to electrons and neutrons, including non-linearities and resolution, validated against Geant4 simulations.

## Key findings

- Electron response is linear up to ~4 MeVee.
- Resolution at 1 MeVee is approximately 11%.
- Non-linear response observed at neutron energies of 5.3, 9.0, and 12.7 MeV.

## Abstract

The response of the liquid scintillator (EJ-301 equivalent to NE-213) to the monoenergetic electrons produced in Compton scattered $\gamma$-ray tagging has been carried out for various radioactive $\gamma$-ray sources. The measured electron response is found to be linear up to $\sim$4~MeVee and the resolution of the liquid scintillator at 1~MeVee is observed to be $\sim$~11\%. The pulse shape discrimination and pulse height response of the liquid scintillator for neutrons has been measured using $^7$Li(p,n$_1$)$^7$Be*(0.429 MeV) reaction. Non linear response to mono-energetic neutrons for the liquid scintillator is observed at E$_n$=5.3, 9.0 and 12.7 MeV. The measured response of the liquid scintillator for electrons and neutrons have been compared with Geant4 simulation.