A novel liquid argon purity monitor based on 207 Bi
Instrumentation and Detectors
2025-01-07 v2 High Energy Physics - Experiment
Abstract
A novel liquid argon purity monitor based on a 207 Bi radioactive source, emitting monochromatic internal-conversion electrons, is presented. This new monitor allows for a very precise and fast measurement of the electronegative impurities concentration in liquid argon. It can be operated continuously in liquid argon TPC experiments without interfering with the main detector operation. Different drift lengths can be assembled for the proposed device, to assess a large range of liquid argon purities while minimizing systematic uncertainties. Two prototypes have been built and successfully operated in dedicated test stands. The results and performance are reported.
Keywords
Cite
@article{arxiv.2411.10796,
title = {A novel liquid argon purity monitor based on 207 Bi},
author = {B. Baibussinov and M. Bettini and F. Fabris and R. Gan and A. Guglielmi and G. Gurung and S. Marchini and G. Meng and M. Nicoletto and F. Pietropaolo and X. Pons and G. Rampazzo and R. Triozzi and F. Varanini and B. Voirin},
journal= {arXiv preprint arXiv:2411.10796},
year = {2025}
}
Comments
12 pages, 9 figures, 13 references