Cosmogenesis Backgrounds, Experiment Depth and the Solar Neutrino TPC

TL;DR

This paper evaluates the potential of a Time Projection Chamber for solar neutrino detection, focusing on background noise reduction at various underground depths and considering activation effects.

Contribution

It provides an estimation of cosmogenic and activation backgrounds for TPCs at different depths, aiding in the design of neutrino experiments.

Findings

Background levels decrease with increased depth

Activation effects are significant above ground

Optimal depth balances background reduction and feasibility

Abstract

A Time Projection Chamber (TPC) is one of the promising candidates to perform unique measurements in solar neutrino physics. Its features will enable it to work at depths of the order of 2000 mwe. This paper describes an estimation of the expected cosmogenic background at different depths including also the background due to fission activation of the TPC material above ground.