First demonstration of 3D optical readout of a TPC using a single photon sensitive Timepix3 based camera

Abstract

The ARIADNE project is developing innovative optical readout technologies for two-phase liquid Argon time projection chambers (LArTPCs). Optical readout presents an exciting alternative to the current paradigm of charge readout. Optical readout is simple, scalable and cost effective. This paper presents first demonstration of 3D optical readout of TPC, using CF4 gas as a proof of principle. Both cosmic rays and an Americium-241 alpha source have been imaged in 100 mbar CF4. A single-photon sensitive camera was developed by combining a Timepix3 (TPX3) based camera with an image intensifier. When a pixel of TPX3 is hit, a packet containing all information about the hit is produced. This packet contains the x,y coordinates of the pixel, time of arrival (ToA) and time over threshold (ToT) information. The z position of the hit in the TPC is determined by combining drift velocity with ToA information. 3D event reconstruction is performed by combining the pixels x,y location with this calculated z position. Calorimetry is performed using time over threshold, a measure of the intensity of the hit.

References in corpus (7)

• Coincidence velocity map imaging using Tpx3Cam, a time stamping optical camera with 1.5 ns timing resolution
• Optical readout tracking detector concept using secondary scintillation from liquid argon generated by a thick gas electron multiplier
• Direct observation of avalanche scintillations in a THGEM-based two-phase Ar avalanche detector using Geiger-mode APD
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• Optical Readout of a Two Phase Liquid Argon TPC using CCD Camera and THGEMs
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• First Demonstration of Imaging Cosmic Muons in a Two-Phase Liquid Argon TPC using an EMCCD Camera and a THGEM

Cited by in corpus (12)

• Intensified Tpx3Cam, a fast data-driven optical camera with nanosecond timing resolution for single photon detection in quantum applications
• Review of Liquid Argon Detector Technologies in the Neutrino Sector
• Single-shot MHz velocity-map-imaging using two Timepix3 cameras
• Identification of low energy nuclear recoils in a gas TPC with optical readout
• Science and Project Planning for the Forward Physics Facility in Preparation for the 2024-2026 European Particle Physics Strategy Update
• ARIADNE -- A Novel Optical LArTPC: Technical Design Report and Initial Characterisation using a Secondary Beam from the CERN PS and Cosmic Muons
• The Thick Gas Electron Multiplier and its derivatives: physics, technologies and applications
• Dark Matter Detection Capabilities of a Large Multipurpose Liquid Argon Time Projection Chamber
• First Demonstration of the Use of LG-SiPMs for Optical Readout of a TPC
• Study of afterpulsing in optical image intensifiers
• Commissioning of a hybrid readout TPC test set-up and gas gain simulations
• Letter of Intent: The Forward Physics Facility