Charge amplification concepts for direction-sensitive dark matter detectors

TL;DR

This paper explores charge amplification methods in time-projection chambers to improve direction-sensitive dark matter detection, demonstrating head-tail recoil reconstruction and discussing scalability for large detectors.

Contribution

It introduces novel charge amplification concepts tailored for direction-sensitive dark matter detectors, including head-tail reconstruction at energies above 100keV.

Findings

Successful head-tail reconstruction for nuclear recoils above 100keV

Discussion on detector performance and scalability for dark matter searches

Demonstration of charge amplification concepts in TPCs

Abstract

Direction measurement of weakly interacting massive particles in time-projection chambers can provide definite evidence of their existence and help to determine their properties. This article demonstrates several concepts for charge amplification in time-projection chambers that can be used in direction-sensitive dark matter search experiments. We demonstrate reconstruction of the 'head-tail' effect for nuclear recoils above 100keV, and discuss the detector performance in the context of dark matter detection and scaling to large detector volumes.