Design and performance of a 35-ton liquid argon time projection chamber as a prototype for future very large detectors

Understand

Liquid argon time projection chamber technology is an attractive choice for large neutrino detectors, as it provides a high-resolution active target and it is expected to be scalable to very large masses.

• Consequently, it has been chosen as the technology for the first module of the DUNE far detector.
• However, the fiducial mass required for "far detectors" of the next generation of neutrino oscillation experiments far exceeds what has been demonstrated so far.
• Scaling to this larger mass, as well as the requirement for underground construction places a number of additional constraints on the design.