ARIADNE+: Large scale demonstration of fast optical readout for dual-phase LArTPCs at the CERN Neutrino Platform

Abstract

Optical readout of large scale dual-phase liquid Argon TPCs is an attractive alternative to charge readout and has been successfully demonstrated on a 2x2m active region within the CERN protoDUNE cold box. ARIADNE + uses four Timepix3 cameras imaging the S2 light produced by 16 novel, patent pending, glass THGEMs. ARIADNE + takes advantage of the raw Timepix3 data coming natively 3D and zero suppressed with a 1.6ns timing resolution. Three of the four THGEM quadrants implement readout in the visible light range through wavelength shifting, with the fourth featuring a VUV light intensifier, thus removing the need for wavelength shifting altogether. Cosmic ray reconstruction and energy calibration was performed. Presented is a summary of the detector setup and experimental run, preliminary analysis of the run data and future outlook for the ARIADNE program.

NEXT-CRAB-0: a high pressure gaseous xenon time projection chamber with a direct VUV camera based readout

“…Fast optical cameras coupled with VUV-sensitive image intensifiers enable direct observation of the ∼172 nm light from the distant EL region. This concept builds on past work on camera-based time projection chambers by others, in particular in two-phase liquid argon TPCs such as ARIADNE [44][45][46], directional dark matter detectors with a CCD readout [47,48], and imaging techniques for nuclear decays [49].…”