Performance of cryogenic charge readout electronics with the ARGONTUBE LAr TPC

TL;DR

This paper evaluates the performance of cryogenic charge readout electronics in the ARGONTUBE liquid argon TPC, highlighting improvements over room-temperature preamplifiers for long electron drift detection.

Contribution

It introduces and compares new cryogenic charge-sensitive preamplifiers with traditional room-temperature ones in a large liquid argon TPC.

Findings

Cryogenic preamplifiers perform better than room-temperature ones.

Enhanced charge detection over 5 m electron drift.

Improved signal-to-noise ratio at cryogenic temperatures.

Abstract

ARGONTUBE is a liquid argon time projection chamber (TPC) with an electron drift length of up to 5 m equipped with cryogenic charge-sensitive preamplifiers. In this work, we present results on its performance including a comparison of the new cryogenic charge-sensitive preamplifiers with the previously used room-temperature-operated charge preamplifiers.