Gaseous and dual-phase time projection chambers for imaging rare processes

González-Díaz, D.; Monrabal, F.; Murphy, S.

doi:10.1016/j.nima.2017.09.024

Cited by 52 publications

(46 citation statements)

References 426 publications

(735 reference statements)

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“…This situation is far from ideal and can be largely improved by adding molecular electron coolants to the gas [5,6] or by positive-ion detection [7]. As a reference, the thermal diffusion limit which can be found in [8] gives a diffusion factor of ∼1.5 mm/ √ m for a field of 250 V/cm, which is very close to the ∼2.5 mm/ √ m value obtained for instance in Xe/CO 2 mixtures [6].…”

Section: Introductionsupporting

confidence: 62%

Helium–Xenon mixtures to improve the topological signature in high pressure gas xenon TPCs

Felkai

Monrabal

González-Díaz³

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

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Within the framework of xenon-based double beta decay experiments, we propose the possibility to improve the background rejection of an electroluminescent Time Projection Chamber (EL TPC) by reducing the diffusion of the drifting electrons while keeping nearly intact the energy resolution of a pure xenon EL TPC. Based on state-of-the-art microscopic simulations, a substantial addition of helium, around 10 or 15 %, may reduce drastically the transverse diffusion down to 2.5 mm/ √ m from the 10.5 mm/ √ m of pure xenon. The longitudinal diffusion remains around 4 mm/ √ m. Light production studies have been performed as well. They show that the relative variation in energy resolution introduced by such a change does not exceed a few percent, which leaves the energy resolution practically unchanged. The technical caveats of using photomultipliers close to an helium atmosphere are also discussed in detail.

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Section: Introductionsupporting

confidence: 62%

Helium–Xenon mixtures to improve the topological signature in high pressure gas xenon TPCs

Felkai

Monrabal

González-Díaz³

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

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“…The development and optimisation of large high precision gaseous TPC with sCMOS + PMT 3D optical readout is of very high interest for several applications of TPC technology for rare event signatures other than DM searches [38]. These span from X-ray polarimetry in space [39], to low energy nuclear physics [40], to measurement of the angular correlations in the 2-proton decay [41], further demonstrating the versatility of the TPC approach, in particular when coupled to an innovative, highly-performing optical readout.…”

Section: Discussionmentioning

confidence: 99%

Directional Dark Matter Searches with CYGNO

et al. 2021

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The CYGNO project aims at developing a high resolution Time Projection Chamber with optical readout for directional dark matter searches and solar neutrino spectroscopy. Peculiar CYGNO’s features are the 3D tracking capability provided by the combination of photomultipliers and scientific CMOS camera signals, combined with a helium-fluorine-based gas mixture at atmospheric pressure amplified by gas electron multipliers structures. In this paper, the performances achieved with CYGNO prototypes and the prospects for the upcoming underground installation at Laboratori Nazionali del Gran Sasso of a 50-L detector in fall 2021 will be discussed, together with the plans for a 1-m3 experiment. The synergy with the ERC consolidator, grant project INITIUM, aimed at realising negative ion drift operation within the CYGNO 3D optical approach, will be further illustrated.

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“…One aspect of particular importance is that, in the EL regime, the optical gain is a linear function of the operating voltage, as [22]:…”

Section: Introductionmentioning

confidence: 99%

Development of very-thick transparent GEMs with wavelength-shifting capability for noble element TPCs

et al. 2021

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A new concept for the simultaneous detection of primary and secondary scintillation in time projection chambers is proposed. Its core element is a type of very-thick GEM structure supplied with transparent electrodes and machined from a polyethylene naphthalate plate, a natural wavelength shifter. Such a device has good prospects for scalability and, by virtue of its genuine optical properties, it can improve on the light collection efficiency, energy threshold and resolution of conventional micropattern gas detectors. This, together with the intrinsic radiopurity of its constituting elements, offers advantages for noble gas and liquid based time projection chambers, used for dark matter searches and neutrino experiments. Production, optical and electrical characterization, and first measurements performed with the new device are reported.

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Gaseous and dual-phase time projection chambers for imaging rare processes

Abstract: Modern approaches to the detection and imaging of rare particle interactions through gaseous and dual-phase time projection chambers are discussed. We introduce and examine their basic working principles and enabling technological assets.

Cited by 52 publications

References 426 publications

Helium–Xenon mixtures to improve the topological signature in high pressure gas xenon TPCs

Helium–Xenon mixtures to improve the topological signature in high pressure gas xenon TPCs

Directional Dark Matter Searches with CYGNO

Development of very-thick transparent GEMs with wavelength-shifting capability for noble element TPCs

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