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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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 |
_version_ |
1772809799403044864 |