Search Results - "Lowell, Alexander"
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Measurement of Galactic 26Al with the Compton Spectrometer and Imager
Published in The Astrophysical journal (01-04-2022)“…The Compton Spectrometer and Imager (COSI) is a balloon-borne compact Compton telescope de-17signed to survey the 0.2–5 MeV sky. COSI’s energy resolution of…”
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Large-Scale Detector Testing for the GAPS Si(Li) Tracker
Published in IEEE transactions on nuclear science (01-08-2023)“…Lithium-drifted silicon [Si(Li)] has been used for decades as an ionizing radiation detector in nuclear, particle, and astrophysics experiments, though such…”
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Soft gamma-ray polarimetry with COSI using maximum likelihood analysis
Published 31-03-2022“…Measurements of the linear polarization of high-energy emission from pulsars, accreting black holes, and gamma-ray bursts (GRBs) provide an opportunity for…”
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Large-scale detector testing for the GAPS Si(Li) Tracker
Published 07-09-2023“…IEEE Trans. Nucl. Sci. 70 (8), 2023, pp. 2125-2133 Lithium-drifted silicon [Si(Li)] has been used for decades as an ionizing radiation detector in nuclear,…”
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Measurement of Galactic $^{26}$Al with the Compton Spectrometer and Imager
Published 23-02-2022“…The Compton Spectrometer and Imager (COSI) is a balloon-borne compact Compton telescope designed to survey the 0.2-5 MeV sky. COSI's energy resolution of…”
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The cosipy library: COSI's high-level analysis software
Published 22-08-2023“…Martinez, Israel. The cosipy library: COSI's high-level analysis software. PoS ICRC2023 (2023) 444-858 The Compton Spectrometer and Imager (COSI) is a selected…”
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Calibrations of the Compton Spectrometer and Imager
Published 01-03-2022“…The Compton Spectrometer and Imager (COSI) is a balloon-borne soft $\gamma$-ray telescope (0.2-5 MeV) designed to study astrophysical sources. COSI employs a…”
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Sensitivity of the GAPS Experiment to Low-energy Cosmic-ray Antiprotons
Published 05-11-2022“…The General Antiparticle Spectrometer (GAPS) is an upcoming balloon mission to measure low-energy cosmic-ray antinuclei during at least three ~35-day Antarctic…”
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Calibrations of the Compton Spectrometer and Imager
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-05-2022)“…The Compton Spectrometer and Imager (COSI) is a balloon-borne soft γ-ray telescope (0.2–5MeV) designed to study astrophysical sources. COSI employs a compact…”
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Relativistic electron avalanches as a thunderstorm discharge competing with lightning
Published in Nature communications (12-08-2015)“…Gamma-ray ‘glows’ are long duration (seconds to tens of minutes) X-ray and gamma-ray emission coming from thunderclouds. Measurements suggest the presence of…”
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Benchmarking simulations of the Compton Spectrometer and Imager with calibrations
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-12-2019)“…The Compton Spectrometer and Imager (COSI) is a balloon-borne γ-ray (0.2-5 MeV) telescope designed to study astrophysical sources. COSI employs a compact…”
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Polarimetric Analysis of the Long Duration Gamma-Ray Burst GRB 160530A With the Balloon Borne Compton Spectrometer and Imager
Published in The Astrophysical journal (20-10-2017)“…A long duration gamma-ray burst, GRB 160530A, was detected by the Compton Spectrometer and Imager (COSI) during the 2016 COSI Super Pressure Balloon campaign…”
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Polarimetric Studies of the Long Duration Gamma-Ray Burst GRB 160530A with the Compton Spectrometer and Ima
Published 01-01-2017“…Gamma-ray bursts (GRBs) are highly luminous flashes of gamma-rays that last from hundreds of milliseconds up to hundreds of seconds, peak in the soft gamma-ray…”
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Dissertation -
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Developing a method for soft gamma-ray Laue lens assembly and calibration
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-03-2014)“…Laue lenses constitute a promising option for concentrating soft gamma rays with a large collection area and reasonable focal lengths. In astronomy they could…”
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Developing a second generation Laue lens prototype: high reflectivity crystals and accurate assembly
Published 29-11-2011“…Proc. SPIE 8147, 81471D (2011) Laue lenses are an emerging technology that will enhance gamma-ray telescope sensitivity by one to two orders of magnitude in…”
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The Compton Spectrometer and Imager
Published 23-08-2023“…PoS(ICRC2023)745 The Compton Spectrometer and Imager (COSI) is a NASA Small Explorer (SMEX) satellite mission in development with a planned launch in 2027…”
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COSI: From Calibrations and Observations to All-sky Images
Published 25-02-2021“…The soft MeV gamma-ray sky, from a few hundred keV up to several MeV, is one of the least explored regions of the electromagnetic spectrum. The most promising…”
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The Compton Spectrometer and Imager Project for MeV Astronomy
Published 21-09-2021“…The Compton Spectrometer and Imager (COSI) is a 0.2-5 MeV Compton telescope capable of imaging, spectroscopy, and polarimetry of astrophysical sources. Such…”
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Benchmarking simulations of the Compton Spectrometer and Imager with calibrations
Published 08-11-2019“…Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 946, 2019, 162643, ISSN…”
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Journal Article