Search Results - "NYGREN, D. R"
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Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay
Published in Scientific reports (22-10-2019)“…The nature of the neutrino is one of the major open questions in experimental nuclear and particle physics. The most sensitive known method to establish the…”
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2
Focusing hard X-rays with old LPs
Published in Nature (London) (27-04-2000)“…We have found that two sections cut from a vinyl long-playing record can form a spherical aberration-free refractive lens for hard X-rays. Our manufactured…”
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3
Mobility and Clustering of Barium Ions and Dications in High Pressure Xenon Gas
Published 10-08-2018“…Phys. Rev. A 97, 062509 (2018) The clustering and drift properties of barium ions in xenon gas are explored theoretically, using density functional theory and…”
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4
Neutral Bremsstrahlung emission in xenon unveiled
Published 13-05-2022“…Phys. Rev. X 12, 021005 (2022) We present evidence of non-excimer-based secondary scintillation in gaseous xenon, obtained using both the NEXT-White TPC and a…”
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5
Demonstration of Single-Barium-Ion Sensitivity for Neutrinoless Double-Beta Decay Using Single-Molecule Fluorescence Imaging
Published in Physical review letters (30-03-2018)“…A new method to tag the barium daughter in the double-beta decay of ^{136}Xe is reported. Using the technique of single molecule fluorescent imaging (SMFI),…”
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6
Progress toward Barium Tagging in High Pressure Xenon Gas with Single Molecule Fluorescence Imaging
Published 09-01-2019“…We present an update on the development of techniques to adapt Single Molecule Fluorescent Imaging for the tagging of individual barium ions in high pressure…”
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7
High Voltage Insulation and Gas Absorption of Polymers in High Pressure Argon and Xenon Gases
Published 10-08-2018“…High pressure gas time projection chambers (HPGTPCs) are made with a variety of materials, many of which have not been well characterized in high pressure…”
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8
Sensitivity of the NEXT experiment to Xe-124 double electron capture
Published 15-03-2021“…J. High Energ. Phys. 2021, 203 (2021) Double electron capture by proton-rich nuclei is a second-order nuclear process analogous to double beta decay. Despite…”
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9
Demonstration of background rejection using deep convolutional neural networks in the NEXT experiment
Published 30-01-2021“…Convolutional neural networks (CNNs) are widely used state-of-the-art computer vision tools that are becoming increasingly popular in high energy physics. In…”
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10
Dependence of polytetrafluoroethylene reflectance on thickness at visible and ultraviolet wavelengths in air
Published 08-09-2020“…Polytetrafluoroethylene (PTFE) is an excellent diffuse reflector widely used in light collection systems for particle physics experiments. However, the…”
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11
Mitigation of Backgrounds from Cosmogenic $^{137}$Xe in Xenon Gas Experiments using $^{3}$He Neutron Capture
Published 27-05-2020“…\Xe{136} is used as the target medium for many experiments searching for \bbnonu. Despite underground operation, cosmic muons that reach the laboratory can…”
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12
Radio Frequency and DC High Voltage Breakdown of High Pressure Helium, Argon, and Xenon
Published 23-04-2020“…Motivated by the possibility of guiding daughter ions from double beta decay events to single-ion sensors for barium tagging, the NEXT collaboration is…”
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13
Future Prospects of the TPC Idea
Published in Physica scripta (01-04-1981)Get full text
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14
Measurement of scintillation and ionization yield with high-pressure gaseous mixtures of Xe and TMA for improved neutrinoless double beta decay and dark matter searches
Published 09-02-2016“…The gaseous Xenon(Xe) time projection chamber (TPC) is an attractive detector technique for neutrinoless double beta decay and WIMP dark matter searches. While…”
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15
Helium–Xenon mixtures to improve the topological signature in high pressure gas xenon TPCs
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-10-2018)“…Within the framework of xenon-based double beta decay experiments, we propose the possibility to improve the background rejection of an electroluminescent Time…”
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16
Energy calibration of the NEXT-White detector with 1% resolution near Q$_{\beta\beta}$ of $^{136}$Xe
Published 18-10-2019“…JHEP 2019:230 (2019) Excellent energy resolution is one of the primary advantages of electroluminescent high pressure xenon TPCs, and searches for rare physics…”
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17
Neutral Bremsstrahlung Emission in Xenon Unveiled
Published in Physical review. X (07-04-2022)“…We present evidence of non-excimer-based secondary scintillation in gaseous xenon, obtained using both the NEXT-White time projection chamber (TPC) and a…”
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18
Ba+2 ion trapping using organic submonolayer for ultra-low background neutrinoless double beta detector
Published in Nature communications (14-12-2022)“…If neutrinos are their own antiparticles the otherwise-forbidden nuclear reaction known as neutrinoless double beta decay can occur. The very long lifetime…”
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19
The dynamics of ions on phased radio-frequency carpets in high pressure gases and application for barium tagging in xenon gas time projection chambers
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-09-2022)“…Radio-frequency (RF) carpets with ultra-fine pitches are examined for ion transport in gases at atmospheric pressures and above. We develop new analytic and…”
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20
Demonstration of the event identification capabilities of the NEXT-White detector
Published 11-09-2019“…In experiments searching for neutrinoless double-beta decay, the possibility of identifying the two emitted electrons is a powerful tool in rejecting…”
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