# The Borexino Thermal Monitoring and Management System

## TL;DR

The paper presents a thermal monitoring and management system for the Borexino neutrino detector that stabilizes internal temperatures, reduces background noise, and improves the accuracy of neutrino detection through empirical data and simulations.

## Contribution

It introduces a novel thermal management system for Borexino that enhances temperature stability and background reduction, supported by empirical data and numerical modeling.

## Key findings

- Significant stabilization of the detector's thermal environment.
- Reduction in radioactive background noise.
- Effective use of numerical simulations for thermal trend analysis.

## Abstract

A monitoring and management system for the thermal environment inside the Borexino neutrino detector was developed and installed in order to reduce uncertainties in temperature determination and limit undesirable thermal couplings between the environment and Borexino's active sections. This strategy is bringing improved radioactive background conditions to the physics signal thanks to the reduced mixing taking place in the liquid scintillator. While equilibrium has not yet been reached, and fine-tuning is possible, the system has proven extremely effective at greatly stabilizing the detector while offering precise insight into its internal thermal conditions and transport. Numerical simulations have also been used to feed this empirical data into a global model, providing information into present and future thermal trends.