CERES: A Cryogenic Experiment to Reconstruct Energy Systematics in TeO$_{2}$ bolometers

TL;DR

CERES is a specialized cryogenic experiment aimed at understanding how the energy response of TeO₂ bolometers varies with position, improving the accuracy of rare event detection like neutrinoless double beta decay.

Contribution

This work introduces CERES, a novel experiment specifically designed to measure and characterize position-dependent energy systematics in TeO₂ bolometers.

Findings

Initial results indicate position-dependent variations in energy response.

The experiment's design allows for detailed mapping of energy resolution across the detector.

Future upgrades aim to enhance measurement precision and systematic understanding.

Abstract

Cryogenic calorimetric detectors are a powerful tool in the search for rare events such as neutrinoless double beta decay ($0\nu\beta \beta$), due to their excellent energy resolution and low intrinsic background. The performance of these detectors depends critically on a precise understanding of their energy scale and energy resolution. Recent studies suggest that both energy scale and energy resolution may vary depending on the spatial location and topology of energy deposition within the detector, indicating the presence of previously uncharacterized systematic effects. The Cryogenic Experiment to Reconstruct Energy Systematics (CERES) is a dedicated experiment designed to directly measure the position dependence of calorimetric response in Tellurium Dioxide (TeO$_{2}$) crystals. This paper details the experimental design, current status, and future upgrade plans for CERES.