I'm working on the SNO+ experiment, a neutrino detector found 2km underground in Sudbury, Canada. Its flagship goal is to search for so-called "neutrinoless double-beta decay", which if found would be the rarest form of radioactive decay in the Universe, and crucially would help us to understand why neutrinos have mass.
My work on the experiment falls (roughly!) into two categories. My main analysis work is using neutrinos that we detect coming from the Sun to measure parameters defining their "oscillation": it was this phenomenon of neutrino oscillations that our predecessor experiment SNO helped to discover.
Alongside this, I help to calibrate the optics of the detector with the SMELLIE sub-system (The Scattering Module for the Embedded LED/Laser Light Injection Entity). As the name suggests, this is a series of lasers which can fire at different visible wavelengths via optical fibres into the detector. In so doing, we can measure the optical scattering properties of the 780 tonnes of liquid scintillator present in our detector. Understanding and measuring the optical properties of our detector is critical to enable the world-leading research we are trying to perform.