Speaker
Description
The Light-only Liquid Xenon (LoLX) experiment is designed to study the properties of light emission and transport in liquid xenon (LXe) using silicon photomultipliers (SiPMs). A particular focus of LoLX is to measure and study Cherenkov and scintillation light emission in LXe. LoLX is currently being upgraded to investigate the long-term behaviour and performance of Hamamatsu VUV4 and FBK VUV-HD3 SiPMs. Both models are currently being considered for application in the neutrinoless double beta decay experiment nEXO.
A proposed method to monitor the long-term stability and performance of the aforementioned SiPMs in LXe is to augment the xenon with radioactive $^{127}$Xe (an electron capture source with a half-life of 36.3 days and a Q-value of 662.3 keV). This allows for an $\textit{in-situ}$ calibration and performance characterization while the detector is operational. This poster will introduce the concept and focus on the neutron activation estimates of $^{127}$Xe from $^{\text{nat}}$Xe, as well as the methodology for deploying it in LoLX.
| Keyword-1 | Liquid Xe calibration source |
|---|---|
| Keyword-2 | Neutrinoless double beta decay |
