A machine learning-based methodology for pulse classification in dual-phase xenon time projection chambers by P. Brás, F. Neves, A. Lindote, A. Cottle, R. Cabrita, E. Lopez Asamar, G. Pereira, C. Silva, V. Solovov, M. I. Lopes

“…This paper aims at exploring the benefits that a dedicated machine learning approach might provide to the classification of signals in dual-phase noble gas time projection chambers. A full methodology is presented, from exploratory data analysis using Gaussian mixture models and feature importance ranking to the construction of dedicated predictive models based on standard implementations of neural networks and random forests, validated using unlabeled simulated data from the LZ experiment as a proxy to real data. …”
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Diagenetic effect of mantle-derived CO2 charge to clay minerals in the Baiyun-Liwan deepwater area of the Pearl River Mouth Basin in South China Sea by Yanhua Liu, Honghan Chen, Yanfei Wang, Jinyang Han, Qian Li

“…In this paper, the X-Ray diffraction (XRD) of clay minerals in the sandstone filled with CO2, microthermometry of fluid inclusions and isotopes of noble gas were used for analysis. The results show that the origin of inorganic CO2 is magmatic. …”
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Progress of in situ U-Th/He Isotopic Dating Technique and Its Application to Low Temperature Deposits by FU Shan-ling, ZHAO Cheng-hai

“…The traditional single-grain U-Th/He isotopic dating method a uses time-consuming acid dissolution, correction for α-ejection and more requirements on target minerals (euhedral, transparent, no cracks or inclusions). in situ U-Th/He isotopic dating is a newly developed dating technique, which uses extracted 4He from target mineral by laser ablation system and analyzes the 4He and U, Th and other parent isotopes via the Noble Gas Mass Spectrum (Alphachron) coupled with laser system and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). …”
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In-situ monitoring of 3He/4He in summit gases of Kilauea Volcano (Hawaii) prior to the 2020 eruption by Gary M. McMurtry, Luis A. Dasilveira

“…The in-situ instrument was deployed using solar power for the first time and results were ground-truthed against data determined using conventional gas analytical and noble gas mass spectrometry techniques. The HIM instrumentation, associated Vent Gas Purification System (VGPS), and related sampling equipment and strategy are described. …”
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Radon Exposure—Therapeutic Effect and Cancer Risk by Andreas Maier, Julia Wiedemann, Felicitas Rapp, Franziska Papenfuß, Franz Rödel, Stephanie Hehlgans, Udo S. Gaipl, Gerhard Kraft, Claudia Fournier, Benjamin Frey

“…Radon, an imperceptible natural occurring radioactive noble gas, contributes as the largest single fraction to radiation exposure from natural sources. …”
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Mirroring Solar Radiation Emitting Heat Toward the Universe: Design, Production, and Preliminary Testing of a Metamaterial Based Daytime Passive Radiative Cooler by Anna Castaldo, Giuseppe Vitiello, Emilia Gambale, Michela Lanchi, Manuela Ferrara, Michele Zinzi

“…In particular, the prototypal device is an acrylic box case, filled with noble gas, whose top face is a metamaterial deposited on a metal substrate covered with a transparent polymeric film. …”
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Natural and Anthropogenic Geochemical Tracers to Investigate Residence Times and Groundwater–Surface-Water Interactions in an Urban Alluvial Aquifer by Connor P. Newman, Suzanne S. Paschke, Gabrielle Keith

“…Distributions of pharmaceuticals and wastewater-indicator compounds also inform an understanding of groundwater–surface-water interactions. Noble-gas isotopes corroborate rare-earth-element data in indicating geochemical evolution within the aquifer from recharge area to discharge area and qualitatively indicate variable groundwater-residence times and mixing with pre-modern groundwater. …”
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Noble gases in aquitard provide insight into underlying subsurface stratigraphy and free gas formation by Alexandra Kathryn Lightfoot, Emiliano Stopelli, Michael Berg, Matthias Brennwald, Rolf Kipfer

“…Up to 90% of the expected atmospheric noble gas concentrations is lost from groundwater immediately below the investigated sediment core.…”
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Surface Volatile Composition as Evidence for Hydrothermal Processes Lasting Longer in Triton’s Interior than Pluto’s by Kathleen Mandt, Adrienn Luspay-Kuti, Olivier Mousis, Sarah E. Anderson

“…These results have applications to other large Kuiper Belt objects as well as the assessment of formation locations and times for the four giant planets given future probe measurements of noble gas abundances and isotope ratios.…”
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40Ar proposed as probe of neutron-induced reactions in a high-density stellar-like plasma at the National Ignition Facility by Paul M., Sahoo R. N., Tessler M., Jeet J., Velsko C., Zylstra A., Avila M., Dickerson C., Fougères C., Jayatissa H., Pardo R. C., Rehm K. E., Scott R., Tolstukhin I., Vondrasek R., Bailey T., Callahan L., Clark A. M., Collon P., Kashiv Y., Nelson A., Köster U., Hoffmann H. F. R., Pichotta M., Zuber K., Döring T., Schwengner R.

“…The chemical inertness of noble gas Ar enables reliable collection of the reaction products.…”
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O, Ne, Mg, and Fe Abundances in Hot X-Ray-emitting Halos of Galaxy Clusters, Groups, and Giant Early-type Galaxies with XMM-Newton RGS Spectroscopy by Kotaro Fukushima, Shogo B. Kobayashi, Kyoko Matsushita

“…Common profiles between noble gas and normal metal suggest that the dust depletion process does not work predominantly in these systems. …”
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Technical note: In situ U–Th–He dating by ⁴He ∕ ³He laser microprobe analysis by P. Vermeesch, Y. Tian, Y. Tian, J. Schwanethal, Y. Buret

“…<p>In situ U–Th–He geochronology is a potentially disruptive technique that combines laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) with laser microprobe noble gas mass spectrometry. Despite its potential to revolutionize (detrital) thermochronology, in situ U–Th–He dating is not widely used due to persistent analytical challenges. …”
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Produced Gas and Condensate Geochemistry of the Marcellus Formation in the Appalachian Basin: Insights into Petroleum Maturity, Migration, and Alteration in an Unconventional Shale... by Christopher D. Laughrey

“…Evidence for thermodynamic equilibrium in the dry gases includes measured molecular proportions (C₁/(C₁ − C₅) = 0.96 to 0.985) and δ¹³C₁ values significantly greater than δ¹³C_KEROGEN. Noble gas systematics support the interpretation of hydrocarbon–formation water interactions, constrain the high thermal maturity of the hydrocarbon fluids, and provide a method of quantifying gas retention versus expulsion in the reservoirs.…”
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Inter-Comparison of Radon Measurements from a Commercial Beta-Attenuation Monitor and ANSTO Dual Flow Loop Monitor by Matthew L. Riley, Scott D. Chambers, Alastair G. Williams

“…Radon (Rn) is a radioactive, colourless, odourless, noble gas that decays rapidly. It’s most stable isotope, ²²²Rn, has a half-life of around 3.8 days. …”
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Cycling of CO2 and N2 Along the Hikurangi Subduction Margin, New Zealand: An Integrated Geological, Theoretical, and Isotopic Approach by Gabe S. Epstein, Gray E. Bebout, Bruce W. Christenson, Hirochika Sumino, Ikuko Wada, Cynthia Werner, David R. Hilton

“…Abstract We present a quantitative assessment of the input and output of CO2 and N2 along the Hikurangi margin based on the chemical and stable isotope composition of sediments and basalts (from IODP 375), previously accreted metasedimentary rocks, and volcanic/hydrothermal gases (together with noble gas data for the latter). We compare these results with 3‐D thermo‐petrologic models for four lithologic structures, representing different plateau inputs. …”
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Fault associated with the 1967 M 6.3 Koyna earthquake, India: A review of recent studies and perspectives for further probing by Kunal Modak, Sunil Rohilla, Nagaraju Podugu, Deepjyoti Goswami, Sukanta Roy

“…We review the Donichawadi fissure zone in the light of extensive seismological data acquired in the past five decades, surface mapping studies, recent geophysical studies, soil-gas helium studies over the fissure zone during 1996–1997, chemical and noble gas isotope compositions of formation gases, and subsurface fracture data from downhole image logs in a 3 km - deep scientific borehole drilled in 2017. …”
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An Ionization-Driven Air Plasma Jet by Shaohui Jin, Lanlan Nie, Lanlan Nie, Rusen Zhou, Jingyi Luo, Xinpei Lu

“…In this study, we report an air APPJ driven by ionization in the afterglow region, resembling noble gas APPJs. A pin-to-nozzle electrode is used for the air plasma jet with a nanosecond-pulsed DC high voltage as the power supply. …”
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A small, novel, remote in-vessel inspection system for the Alcator C-Mod tokamak by Scott, S.D., Mumgaard, Robert Thomas, Vieira, Rui F, Parkin, William C

“…The inspection is typically undertaken during maintenance periods when the vessel is filled with a noble gas near atmospheric pressure thus minimizing the influx of water vapor and the concomitant loss of wall conditioning. …”
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Design Challenges for Ultra-High-Temperature Energy Storage with Thermophotovoltaics by Kelsall, Colin Clancy

“…This thesis examines the relevant design parameters of this Sweeping Noble Gas Curtain (SNGC) system with the goal of developing a functional and scalable TPV generator for implementation in the TEGS ultra-high-temperature thermal battery. …”
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Cosmic-ray production of tungsten isotopes in lunar samples and meteorites and its implications for Hf-W cosmochemistry by Leya, I, Wieler, R, Halliday, A

“…The neutron fluence of each sample is estimated by its nominal cosmic-ray exposure age deduced from noble gas data. This approach overestimates the true cosmogenic W isotopic shifts for samples that might have been irradiated very close to the regolith surface. …”