We present a tracker gas flow quality control method developed for the Mu2e straw tube tracker. Using time-dependent current measurements, we quantify the onset time of ionization gain induced by an 55Fe source during gas exchange, which is correlated to the gas conductance in the straw. This allows for the identification of channels with inadequate flow. This approach is broadly applicable to other gaseous detectors that require high-channel-count screening.
Cite
@article{arxiv.2512.04286,
title = {Mu2e Straw Tube Tracker Gas Flow Quality Control},
author = {Vishal Bharatwaj and Scott N. Israel and Mamta Jangra and Minh Truong Nguyen and Joey Peck and Matthew Stortini and Nam H. Tran and Dan Ambrose and Andrew Edmonds and Hannah Hass and Emma R. Martin and Aseet Mukherjee and Klara Northrup and James L. Popp and Vadim L. Rusu and Robert S. Tschirhart and Robert L. Wagner},
journal= {arXiv preprint arXiv:2512.04286},
year = {2026}
}
Comments
5 pages, 9 figures. To be published in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment