A novel method for event reconstruction in Liquid Argon Time Projection Chamber

Liquid Argon Time Projection Chamber (LAr TPC) detectors offer charged particle imaging capability with remarkable spatial resolution. Precise event reconstruction procedures are critical in order to fully exploit the potential of this technology. In this paper we present a new, general approach to 3D reconstruction for the LAr TPC with a practical application to the track reconstruction. The efficiency of the method is evaluated on a sample of simulated tracks. We present also the application of the method to the analysis of stopping particle tracks collected during the ICARUS T600 detector operation with the CNGS neutrino beam.

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The Mini-CAPTAIN liquid argon Time Projection Chamber

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ◽

10.1016/j.nima.2021.165131 ◽

2021 ◽

pp. 165131

Author(s):

C.E. Taylor ◽

B. Bhandari ◽

J. Bian ◽

K. Bilton ◽

C. Callahan ◽

...

Keyword(s):

Time Projection Chamber ◽

Liquid Argon ◽

Time Projection

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A large scale purification system for a liquid argon time projection chamber

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ◽

10.1016/0168-9002(87)90053-2 ◽

1987 ◽

Vol 258 (2) ◽

pp. 170-176 ◽

Cited By ~ 8

Author(s):

Peter J. Doe ◽

Richard C. Allen ◽

Steven D. Biller ◽

Gerhard Bühler ◽

Wayne A. Johnson ◽

...

Keyword(s):

Time Projection Chamber ◽

Large Scale ◽

Liquid Argon ◽

Purification System ◽

Time Projection

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Precision measurements on oxygen formation in stellar helium burning with gamma-ray beams and a Time Projection Chamber

10.21203/rs.3.rs-291379/v1 ◽

2021 ◽

Author(s):

Robin Smith ◽

Moshe Gai ◽

Sarah Stern ◽

Deran Schweitzer ◽

Mohammad Ahmed

Keyword(s):

Time Projection Chamber ◽

Gamma Ray ◽

Nuclear Reactions ◽

Angular Distributions ◽

Helium Burning ◽

Low Energies ◽

Important Input ◽

Novel Method ◽

Time Projection ◽

First Time

Abstract Stellar Evolution theory relies on our knowledge of nuclear reactions, with the carbon/oxygen (C/O) ratio, at the end of helium burning, being the single most important input. However, the C/O ratio is still not known with sufficient accuracy, due to large uncertainties in the cross section for the fusion of helium with 12C to form 16O, denoted as the 12C(α,γ)16O reaction. We present initial results at moderately low energies using a novel method, which is significantly different from the experimental efforts of the past four decades. Precise angular distributions of the 12C(α,γ)16O reaction were obtained by measuring the inverse 16O(γ,α)12C reaction with gamma-beams and a Time Projection Chamber detector. These allowed us to measure, for the first time, the interference angle of the l = 1 and 2 partial waves contributing to this reaction (φ12), which agrees with predictions based on the unitarity of the scattering matrix.

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First Demonstration of a Pixelated Charge Readout for Single-Phase Liquid Argon Time Projection Chambers

Instruments ◽

10.3390/instruments4010009 ◽

2020 ◽

Vol 4 (1) ◽

pp. 9 ◽

Cited By ~ 2

Author(s):

Jonathan Asaadi ◽

Martin Auger ◽

Antonio Ereditato ◽

Damian Goeldi ◽

Umut Kose ◽

...

Keyword(s):

Single Phase ◽

Signal To Noise Ratio ◽

Liquid Argon ◽

Track Reconstruction ◽

3D Tracking ◽

3D Space ◽

Time Projection Chambers ◽

Event Reconstruction ◽

Phase Liquid ◽

Time Projection

Traditional charge readout technologies of single-phase Liquid Argon Time projection Chambers (LArTPCs) based on projective wire readout introduce intrinsic ambiguities in event reconstruction. Combined with the slow response inherent in LArTPC detectors, reconstruction ambiguities have limited their performance, until now. Here, we present a proof of principle of a pixelated charge readout that enables the full 3D tracking capabilities of LArTPCs. We characterize the signal-to-noise ratio of charge readout chain to be about 14, and demonstrate track reconstruction on 3D space points produced by the pixel readout. This pixelated charge readout makes LArTPCs a viable option for high-multiplicity environments.

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Optical Readout of the ARIADNE LArTPC Using a Timepix3-Based Camera

Instruments ◽

10.3390/instruments4040035 ◽

2020 ◽

Vol 4 (4) ◽

pp. 35

Author(s):

Adam Lowe ◽

Krishanu Majumdar ◽

Konstantinos Mavrokoridis ◽

Barney Philippou ◽

Adam Roberts ◽

...

Keyword(s):

Large Scale ◽

Liquid Argon ◽

Energy Calibration ◽

Dual Phase ◽

Optical Readout ◽

Event Reconstruction ◽

Phase Liquid ◽

Preliminary Study ◽

Time Projection ◽

Good Agreement

The ARIADNE Experiment, utilising a 1-ton dual-phase Liquid Argon Time Projection Chamber (LArTPC), aims to develop and mature optical readout technology for large scale LAr detectors. This paper describes the characterisation, using cosmic muons, of a Timepix3-based camera mounted on the ARIADNE detector. The raw data from the camera are natively 3D and zero suppressed, allowing for straightforward event reconstruction, and a gallery of reconstructed LAr interaction events is presented. Taking advantage of the 1.6 ns time resolution of the readout, the drift velocity of the ionised electrons in LAr was determined to be 1.608 ± 0.005 mm/μs at 0.54 kV/cm. Energy calibration and resolution were determined using through-going muons. The energy resolution was found to be approximately 11% for the presented dataset. A preliminary study of the energy deposition (dEdX) as a function of distance has also been performed for two stopping muon events, and comparison to GEANT4 simulation shows good agreement. The results presented demonstrate the capabilities of this technology, and its application is discussed in the context of the future kiloton-scale dual-phase LAr detectors that will be used in the DUNE programme.

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