Scintillation yield and time dependence from electronic and nuclear recoils in liquid neon

TL;DR

This study measures scintillation light yield, pulse shape discrimination, and the extless{}Leff extgreater{} parameter in liquid neon, revealing dependencies on pressure and temperature, with implications for particle detection technologies.

Contribution

It provides the first detailed measurements of scintillation properties and pulse shape discrimination in liquid neon across a broad energy range, including pressure and temperature effects.

Findings

Signal yield up to 3.5 photoelectrons/keV

Pulse shape discrimination efficiency characterized between 50-300 keV

Average extless{}Leff extgreater{} of 0.24 above 50 keV

Abstract

We have performed measurements of scintillation light in liquid neon, observing a signal yield in our detector as high as (3.5 $\pm$ 0.4) photoelectrons/keV. We measure pulse shape discrimination efficiency between electronic and nuclear recoils in liquid neon from 50 and 300 keV nuclear recoil energy. We also measure the \leff\, parameter in liquid neon between 30 and 370 keV nuclear recoil energy, observing an average \leff$=0.24$ above 50 keV. We observe a dependence of the scintillation time distribution and signal yield on the pressure and temperature of the liquid neon.