Organic liquid TPCs for neutrino physics

Dawson, J.; Kryn, D.

doi:10.1088/1748-0221/9/07/p07002

Cited by 6 publications

(6 citation statements)

References 21 publications

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“…The inverse beta decay signal is slightly different in a drift chamber than in a typical large scintillator detector [40]. The reaction νe + p → n + e + actually results in four separate energy deposits in a detector: first, the e + kinetic energy (KE e ), which is equal to the neutrino kinetic energy E ν minus 1.8 MeV and appears as a single track.…”

Section: Why Use Tpcs For Antineutrino Physics?mentioning

confidence: 99%

Sub-Penning gas mixtures: new possibilities for ton- to kiloton-scale time projection chambers

Monreal¹,

Viveiros²,

Luszczak³

2015

Preprint

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In this work, we present the concept for large low-background experiments in which an unusual gas mixture gas serves as a seamless, high-QE, near-100%-coverage photodetector for scintillation or Cherenkov photons. We fill a large time projection chamber with a VUV scintillating gas, plus an unusually small admixture dopant gas with a low ionization threshhold (and a high ionization yield), akin to a highly-underquenched Penning mixture. Scintillation photons travel far from a primary ionization site before converting into photoionization electrons. Using standard TPC methods, we can separately count both the primary ionization electrons (which occur along a dense track) and the scintillationionization electrons (which will occur over a large spherical region) without the use of PMTs. The scheme is compatible with very large detectors, in both two-phase and single-phase high pressure configurations. We discuss how the drift-axis position of an event can be reconstructed, and under what constraints we can expect stable gas gain operations. We propose some detectors illustrating how this scheme-both in conventional two-phase geometries, as well as in pressurized space in solution-mined salt cavern-makes it possible to safely construct gas time projection chambers of previously-unreachable target masses, capable of studying dark matter, double beta decay, proton decay, and solar neutrinos; more speculative gas mixtures might extend the technique to reactor and geoneutrinos.

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Section: Why Use Tpcs For Antineutrino Physics?mentioning

confidence: 99%

Sub-Penning gas mixtures: new possibilities for ton- to kiloton-scale time projection chambers

Monreal¹,

Viveiros²,

Luszczak³

2015

Preprint

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“…For a hydrogen-rich target, 500 bar CH 4 is more attractive, providing a 4 kT supercritical gas target of which 1 kT is hydrogen. Liquid-phase targets (10-15 kT) might include CO 2 , NH 3 , and various liquid hydrocarbons (including scintillators) which have demonstrated long drift lengths at room temperature [18].…”

Section: Solution-mined Caverns In the Pine Saltmentioning

confidence: 99%

High-pressure TPCs in pressurized caverns: opportunities in dark matter and neutrino physics

Monreal¹

2022

Preprint

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The natural gas and hydrogen storage industries have experience creating huge, pressurized underground spaces. The most common of these is "solution mining", a method for making brine-filled cavities in salt formations. Unlike conventionally-mined underground spaces, these spaces are (a) inexpensive to construct and operate, (b) naturally serve as pressure vessels, at size scales impossible to construct in a conventional lab, and (b) permit safe use of flammable and/or toxic materials. If various engineering challenges could be met, solution-mined caverns would allow unprecedentedly-large high pressure gas TPCs. Lined rock caverns (LRC) may permit high pressure TPCs of considerable size in more conventional spaces. In this whitepaper, we review some of the new physics opportunities available in these caverns and suggest an R&D program needed to realize them.

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“…For example, KASCADE-Grande [24] used liquid ionization chambers filled with TMS in their central calorimeter. In recent years, the use of these organic liquids as sensitive material of a TPC has been discussed [11,12]. By operating small test chambers, the charge transport in organic liquids has been studied by measuring the charge yield, the drift velocity and the mean free drift length [25].…”

Section: Liquid-organic Time Projection Chambermentioning

confidence: 99%

“…This is to be achieved using an organic liquid. It contains sufficient free protons to serve as a target for IBD reactions, as has already been proposed by previous studies [11,12]. Specifically, in each IBD event one could seek to identify the initial positron track, the energy depositions of the two annihilation photons and of the delayed photon emitted due to the neutron absorption by a nucleus.…”

Section: Introductionmentioning

confidence: 99%

Liquid-organic time projection chamber for detecting low energy antineutrinos

Radermacher¹,

Bosse²,

Friedrich³

et al. 2022

Preprint

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A: The MeV region of antineutrino energy is of special interest for physics research and for monitoring nuclear nonproliferation. Whereas liquid scintillation detectors are typically used to detect the Inverse Beta Decay (IBD), it has recently been proposed to detect it with a liquidorganic Time Projection Chamber, which could allow a full reconstruction of the particle tracks of the IBD final state. We present the first comprehensive simulation-based study of the expected signatures. Their unequivocal signature could enable a background-minimized detection of electron antineutrinos using information on energy, location and direction of all final state particles. We show that the positron track reflects the antineutrino's vertex. It can also be used to determine the initial neutrino energy. In addition, we investigate the possibility to reconstruct the antineutrino direction on an event-by-event basis by the energy deposition of the neutron-induced proton recoils. Our simulations indicate that this could be a promising approach which should be further studied through experiments with a detector prototype. K: Charge transport and multiplication in liquid media; Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc); Detector modelling and simulations II (electric fields, charge transport, multiplication and induction, pulse formation, electron emission, etc); Liquid detectors; Time projection Chambers (TPC); Neutrino detectors; Particle tracking detectors; Search for radioactive and fissile materials

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Organic liquid TPCs for neutrino physics

Abstract: We present a new concept for anti-neutrino detection, an organic liquid TPC with a volume of the order of m 3 and an energy resolution of the order of 1% at 3 MeV and a sub-cm spatial resolution.

Cited by 6 publications

References 21 publications

Sub-Penning gas mixtures: new possibilities for ton- to kiloton-scale time projection chambers

Sub-Penning gas mixtures: new possibilities for ton- to kiloton-scale time projection chambers

High-pressure TPCs in pressurized caverns: opportunities in dark matter and neutrino physics

Liquid-organic time projection chamber for detecting low energy antineutrinos

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