Research and Development Toward Massive Liquid Argon Time Projection Chambers for Neutrino Detection

Thiesse, M.

doi:10.2172/1438591

Cited by 2 publications

(9 citation statements)

References 146 publications

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“…Resistors totaling 1.2 GΩ were installed in series with the high-voltage supply in order to reduce ripple and limit the speed of charging and discharge. A set of eight CMOS CCD cameras [20][21][22][23] were installed to monitor the cryostat for potential HV breakdowns and to monitor the operations of cryogenic components. They viewed the argon volume between the cathode on the long-drift side of the TPC and the cryostat, as well as the ullage and the volume near the HV feedthrough.…”

Section: Jinst 15 P03035mentioning

confidence: 99%

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

et al. 2020

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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. A prototype 35-ton cryostat was built at Fermi National Acccelerator Laboratory to test the functionality of the components foreseen to be used in a very large far detector. The Phase I run, completed in early 2014, demonstrated that liquid argon could be maintained at sufficient purity in a membrane cryostat. A time projection chamber was installed for the Phase II run, which collected data in February and March of 2016. The Phase II run was a test of the modular anode plane assemblies with wrapped wires, cold readout electronics, and integrated photon detection systems. While the details of the design do not match exactly those chosen for the DUNE far detector, the 35-ton TPC prototype is a demonstration of the functionality of the basic components. Measurements are performed using the Phase II data to extract signal and noise characteristics and to align the detector components. A measurement of the electron lifetime is presented, and a novel technique for measuring a track's position based on pulse properties is described.

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Section: Jinst 15 P03035mentioning

confidence: 99%

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

et al. 2020

View full text Add to dashboard Cite

show abstract

“…A set of eight CMOS CCD cameras [20][21][22][23] were installed to monitor the cryostat for potential HV breakdowns and to monitor the operations of cryogenic components. They viewed the argon volume between the cathode on the long-drift side of the TPC and the cryostat, as well as the ullage and the volume near the HV feedthrough.…”

Section: Detector Designmentioning

confidence: 99%

“…The locations are interpolated from neighbouring hits, and the charges are computed from the waveforms as if the hits had been found. More details are available in Ref [22].…”

Section: Hit Finding and Track Findingmentioning

confidence: 99%

“…The electron lifetimes in several liquid argon TPCs have been measured with tracks using methods similar to the one described here [38][39][40][41][42]. Additional details on the method described here can be found in [22].…”

Section: Electron Lifetime Analysismentioning

confidence: 99%

“…Uncertainties due to the effects of transverse diffusion, channel-to-channel gain variations and signal modeling errors in the Monte Carlo simulation are estimated to contribute a 5% fractional systematic uncertainty on the lifetime measurement [22,49].…”

Section: Systematic Uncertaintiesmentioning

confidence: 99%

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

Adams,

Baird,

Barr

et al. 2019

Preprint

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A: 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. A prototype 35-ton cryostat was built at Fermi National Acccelerator Laboratory to test the functionality of the components foreseen to be used in a very large far detector. The Phase I run, completed in early 2014, demonstrated that liquid argon could be maintained at sufficient purity in a membrane cryostat. A time projection chamber was installed for the Phase II run, which collected data in February and March of 2016. The Phase II run was a test of the modular anode plane assemblies with wrapped wires, cold readout electronics, and integrated photon detection systems. While the details of the design do not match exactly those chosen for the DUNE far detector, the 35-ton TPC prototype is a demonstration of the functionality of the basic components. Measurements are performed using the Phase II data to extract signal and noise characteristics and to align the detector components. A measurement of the electron lifetime is presented, and a novel technique for measuring a track's position based on pulse properties is described.

show abstract

Research and Development Toward Massive Liquid Argon Time Projection Chambers for Neutrino Detection

Cited by 2 publications

References 146 publications

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

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

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

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