Towards energy resolution at the statistical limit from a negative ion time projection chamber

TL;DR

This paper demonstrates that a negative-ion time projection chamber can achieve near-optimal energy resolution by counting individual electrons, advancing detector precision for ionizing radiation.

Contribution

It introduces a method to improve energy resolution in TPCs by electron counting, approaching the statistical limit.

Findings

Enhanced energy resolution demonstrated in negative-ion TPCs.

Proof-of-principle validation of electron counting technique.

Potential for near-ideal energy measurements in radiation detection.

Abstract

We make a proof-of-principle demonstration that improved energy resolution can be obtained in a negative-ion time projection chamber, by individually counting each electron produced by ionizing radiation.