Search Results - "Arnquist, I J"
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Identification of background limitations to ultra-sensitive LSC counting through ICP-MS assay of LSC cocktails
Published in Journal of radioanalytical and nuclear chemistry (01-12-2022)“…The performance of LSC cocktails in ultra-sensitive applications was evaluated. Backgrounds from radioactive contaminations in commercially available and…”
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2
Impact of lowering potassium contamination in liquid scintillation cocktails for ultra-sensitive radiation detection
Published in Journal of radioanalytical and nuclear chemistry (01-10-2023)“…Intrinsic 40 K radioactive backgrounds from impurities of natural K in liquid scintillation cocktails have previously been demonstrated to limit their use in…”
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3
A novel assay method for the trace determination of Th and U in copper and lead using inductively coupled plasma mass spectrometry
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-03-2015)“…This study describes a novel sample preparation and assay method developed, primarily in support of the Majorana Demonstrator neutrinoless double-beta decay…”
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4
Search for charge non-conservation and Pauli exclusion principle violation with the Majorana Demonstrator
Published in Nature physics (01-07-2024)“…Charge conservation and the Pauli exclusion principle result from fundamental symmetries in the standard model of particle physics, and are typically taken as…”
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5
Characterization of SABRE crystal NaI-33 with direct underground counting
Published in The European physical journal. C, Particles and fields (01-04-2021)“…Ultra-pure NaI(Tl) crystals are the key element for a model-independent verification of the long standing DAMA result and a powerful means to search for the…”
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6
Measurement of energy resolution with the NEXT-White silicon photomultipliers
Published in The journal of high energy physics (18-09-2024)“…A bstract The NEXT-White detector, a high-pressure gaseous xenon time projection chamber, demonstrated the excellence of this technology for future…”
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Final Result of the Majorana Demonstrator’s Search for Neutrinoless Double- β Decay in Ge 76
Published in Physical review letters (10-02-2023)Get full text
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ADC Nonlinearity Correction for the Majorana Demonstrator
Published in IEEE transactions on nuclear science (01-03-2021)“…Imperfections in analog-to-digital conversion (ADC) cannot be ignored when signal digitization requirements demand both wide dynamic range and high resolution,…”
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Dark Matter Search Results from the PICO − 60 C 3 F 8 Bubble Chamber
Published in Physical review letters (23-06-2017)“…New results are reported from the operation of the PICO-60 dark matter detector, a bubble chamber filled with 52 kg of C3F8 located in the SNOLAB underground…”
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Exploration of methods to remove implanted 210Pb and 210Po contamination from silicon surfaces
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-03-2023)“…Radioactive contaminants on the surfaces of detector components can be a problematic source of background events for physics experiments searching for rare…”
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11
Interpretable Boosted Decision Tree Analysis for the Majorana Demonstrator
Published 21-08-2024“…Phys. Rev. C, Vol. 107, Iss. 1, January 2023 The Majorana Demonstrator is a leading experiment searching for neutrinoless double-beta decay with high purity…”
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Exotic dark matter search with the Majorana Demonstrator
Published 27-07-2024“…* Phys. Rev. Lett. 132, 041001 (2024) Phys. Rev. Lett. 132, 041001 (2024) With excellent energy resolution and ultra-low level radiogenic backgrounds, the…”
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Direct method for the quantitative analysis of surface contamination on ultra-low background materials from exposure to dust
Published 23-06-2020“…In this work we present a method for the direct determination of contaminant fallout rates on material surfaces from exposure to dust. Naturally occurring…”
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14
Energy Calibration of Germanium Detectors for the MAJORANA DEMONSTRATOR
Published 03-08-2023“…JINST 18, P09023 (2023) The MAJORANA DEMONSTRATOR was a search for neutrinoless double-beta decay ($0\nu\beta\beta$) in the $^{76}$Ge isotope. It was staged at…”
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Search for Spontaneous Radiation from Wavefunction Collapse in the Majorana Demonstrator
Published 12-06-2023“…The Majorana Demonstrator neutrinoless double-beta decay experiment comprises a 44 kg (30 kg enriched in $^{76}\mathrm{Ge}$) array of $p$-type, point-contact…”
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Constraints on the decay of $^{180m}$Ta
Published 03-06-2023“…Phys. Rev. Lett. 131, 152501 (2023) $^{180m}$Ta is a rare nuclear isomer whose decay has never been observed. Its remarkably long lifetime surpasses the…”
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Charge Trapping and Energy Performance of the MAJORANA DEMONSTRATOR
Published 26-04-2023“…Phys. Rev. C 107, 045503 (2023) P-type point contact (PPC) high-purity germanium detectors are an important technology in astroparticle and nuclear physics due…”
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Direct method for the quantitative analysis of surface contamination on ultra-low background materials from exposure to dust
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-04-2021)“…In this work we present a method for the direct determination of contaminant fallout rates on material surfaces from exposure to dust. Naturally occurring…”
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19
event characterization and rejection in point-contact HPGe detectors
Published in The European physical journal. C, Particles and fields (01-03-2022)“…P-type point contact (PPC) HPGe detectors are a leading technology for rare event searches due to their excellent energy resolution, low thresholds, and…”
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Search for charge nonconservation and Pauli exclusion principle violation with the Majorana Demonstrator
Published 11-01-2023“…Nat. Phys. 20, 1078-3038, 2024 Charge conservation and the Pauli exclusion principle (PEP) result from fundamental symmetries in the Standard Model, and are…”
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