Determination of primordial and cosmogenic radioactivity in achondritic meteorites by low-level, gamma-ray spectrometry

A high-sensitivity, low-background gamma-ray spectrometer containing two 23 cm by 13 cm thallium-activated, sodium iodide detectors was used to measure long-lived primordial and cosmogenic radioactivity in a suite of achondritic meteorites. Potassium, thorium, uranium, and /sup 26/Al abundances were...

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Main Author: Muntean, R.A.
Language:unknown
Published: 2020
Subjects:
Online Access:http://www.osti.gov/servlets/purl/5485606
https://www.osti.gov/biblio/5485606
https://doi.org/10.2172/5485606
id ftosti:oai:osti.gov:5485606
record_format openpolar
spelling ftosti:oai:osti.gov:5485606 2023-07-30T03:59:05+02:00 Determination of primordial and cosmogenic radioactivity in achondritic meteorites by low-level, gamma-ray spectrometry Muntean, R.A. 2020-05-29 application/pdf http://www.osti.gov/servlets/purl/5485606 https://www.osti.gov/biblio/5485606 https://doi.org/10.2172/5485606 unknown http://www.osti.gov/servlets/purl/5485606 https://www.osti.gov/biblio/5485606 https://doi.org/10.2172/5485606 doi:10.2172/5485606 71 CLASSICAL AND QUANTUM MECHANICS GENERAL PHYSICS ACHONDRITES CHEMICAL COMPOSITION METEORITES GAMMA SPECTROSCOPY POTASSIUM RADIOACTIVITY THORIUM URANIUM ACTINIDES ALKALI METALS ELEMENTS METALS SPECTROSCOPY STONE METEORITES 2020 ftosti https://doi.org/10.2172/5485606 2023-07-11T10:40:07Z A high-sensitivity, low-background gamma-ray spectrometer containing two 23 cm by 13 cm thallium-activated, sodium iodide detectors was used to measure long-lived primordial and cosmogenic radioactivity in a suite of achondritic meteorites. Potassium, thorium, uranium, and /sup 26/Al abundances were established for sixteen brecciated eucrites, two unbrecciated eucrites, a nakhlite, a chassignite, and a unique meteorite from Antarctica by nondestructive counting techniques. In several cases, multiple samples of the same meteorite fall were examined. Concentrations ranged from 79.8 ppM to 1150 ppM for potassium, 55.6 ppb to 663 ppb for thorium, 18.1 ppb to 190 ppb for uranium, and 45.0 dpm/kg to 99.0 dpm/kg for /sup 26/Al. In addition, a /sup 137/Cs concentration of 264 dpm/kg was observed in the Allan Hills 77005,9 specimen. Other/Unknown Material Antarc* Antarctica SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Allan Hills ENVELOPE(159.667,159.667,-76.717,-76.717)
institution Open Polar
collection SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
op_collection_id ftosti
language unknown
topic 71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACHONDRITES
CHEMICAL COMPOSITION
METEORITES
GAMMA SPECTROSCOPY
POTASSIUM
RADIOACTIVITY
THORIUM
URANIUM
ACTINIDES
ALKALI METALS
ELEMENTS
METALS
SPECTROSCOPY
STONE METEORITES
spellingShingle 71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACHONDRITES
CHEMICAL COMPOSITION
METEORITES
GAMMA SPECTROSCOPY
POTASSIUM
RADIOACTIVITY
THORIUM
URANIUM
ACTINIDES
ALKALI METALS
ELEMENTS
METALS
SPECTROSCOPY
STONE METEORITES
Muntean, R.A.
Determination of primordial and cosmogenic radioactivity in achondritic meteorites by low-level, gamma-ray spectrometry
topic_facet 71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACHONDRITES
CHEMICAL COMPOSITION
METEORITES
GAMMA SPECTROSCOPY
POTASSIUM
RADIOACTIVITY
THORIUM
URANIUM
ACTINIDES
ALKALI METALS
ELEMENTS
METALS
SPECTROSCOPY
STONE METEORITES
description A high-sensitivity, low-background gamma-ray spectrometer containing two 23 cm by 13 cm thallium-activated, sodium iodide detectors was used to measure long-lived primordial and cosmogenic radioactivity in a suite of achondritic meteorites. Potassium, thorium, uranium, and /sup 26/Al abundances were established for sixteen brecciated eucrites, two unbrecciated eucrites, a nakhlite, a chassignite, and a unique meteorite from Antarctica by nondestructive counting techniques. In several cases, multiple samples of the same meteorite fall were examined. Concentrations ranged from 79.8 ppM to 1150 ppM for potassium, 55.6 ppb to 663 ppb for thorium, 18.1 ppb to 190 ppb for uranium, and 45.0 dpm/kg to 99.0 dpm/kg for /sup 26/Al. In addition, a /sup 137/Cs concentration of 264 dpm/kg was observed in the Allan Hills 77005,9 specimen.
author Muntean, R.A.
author_facet Muntean, R.A.
author_sort Muntean, R.A.
title Determination of primordial and cosmogenic radioactivity in achondritic meteorites by low-level, gamma-ray spectrometry
title_short Determination of primordial and cosmogenic radioactivity in achondritic meteorites by low-level, gamma-ray spectrometry
title_full Determination of primordial and cosmogenic radioactivity in achondritic meteorites by low-level, gamma-ray spectrometry
title_fullStr Determination of primordial and cosmogenic radioactivity in achondritic meteorites by low-level, gamma-ray spectrometry
title_full_unstemmed Determination of primordial and cosmogenic radioactivity in achondritic meteorites by low-level, gamma-ray spectrometry
title_sort determination of primordial and cosmogenic radioactivity in achondritic meteorites by low-level, gamma-ray spectrometry
publishDate 2020
url http://www.osti.gov/servlets/purl/5485606
https://www.osti.gov/biblio/5485606
https://doi.org/10.2172/5485606
long_lat ENVELOPE(159.667,159.667,-76.717,-76.717)
geographic Allan Hills
geographic_facet Allan Hills
genre Antarc*
Antarctica
genre_facet Antarc*
Antarctica
op_relation http://www.osti.gov/servlets/purl/5485606
https://www.osti.gov/biblio/5485606
https://doi.org/10.2172/5485606
doi:10.2172/5485606
op_doi https://doi.org/10.2172/5485606
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