A New Concept for Kilotonne Scale Liquid Argon Time Projection Chambers
Abstract
We develop a novel approach for a Time Projection Chamber (TPC) concept suitable for deployment in kilotonne scale detectors, with a charge-readout system free from reconstruction ambiguities, and a robust TPC design that reduces high-voltage risks while increasing the coverage of the light collection system. This novel concept could be deployed as a Far Detector module in the Deep Underground Neutrino Experiment (DUNE) neutrino-oscillation experiment. For the charge-readout system, we use the charge-collection pixels and associated application-specific integrated circuits currently being developed for the liquid argon (LAr) component of the DUNE Near Detector design, ArgonCube. In addition, we divide the TPC into a number or shorter drift volumes, reducing the total voltage used to drift the ionisation electrons, and minimising the stored energy per TPC. Segmenting the TPC also contains scintillation light, allowing for precise trigger localisation and a more expansive light-readout system. Furthermore, the design opens the possibility of replacing or upgrading components. These augmentations could substantially improve reliability and sensitivity, particularly for low energy signals, in comparison to a traditional monolithic LArTPCs with projective charge-readout.
Cite
@article{arxiv.1908.10956,
title = {A New Concept for Kilotonne Scale Liquid Argon Time Projection Chambers},
author = {M. Auger and R. Berner and Y. Chen and A. Ereditato and D. Goeldi and P. P. Koller and I. Kreslo and D. Lorca and T. Mettler and F. Piastra and J. R. Sinclair and M. Weber and C. Wilkinson and M. Convery and L. Domine and F. Drielsma and R. Itay and D. H. Koh and H. A. Tanaka and K. Terao and P. Tsang and T. Usher and D. A. Dwyer and S. Kohn and P. Madigan and C. M. Marshall and A. Bross and J. Asaadi},
journal= {arXiv preprint arXiv:1908.10956},
year = {2019}
}
Comments
12 pages, 5 figures