Cosmic ray source abundance of calcium

Re-examines the results of experiments in which ultra-high purity iron targets were irradiated by protons from the two CERN accelerators (600 MeV and 21 GeV); the spallation products were then chemically separated, and their isotopic composition determined by mass spectrometry. Ratios of cross-secti...

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Detalles Bibliográficos
Autor principal: Perron, C
Lenguaje:eng
Publicado: 1978
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.1038/271425a0
http://cds.cern.ch/record/879208
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author Perron, C
author_facet Perron, C
author_sort Perron, C
collection CERN
description Re-examines the results of experiments in which ultra-high purity iron targets were irradiated by protons from the two CERN accelerators (600 MeV and 21 GeV); the spallation products were then chemically separated, and their isotopic composition determined by mass spectrometry. Ratios of cross-sections for calcium production by spallation of iron show that /sup 42/Ca, /sup 43/Ca and /sup 44/Ca have about the same abundance, about 10-15% that of iron, confirming earlier studies. (11 refs).
id cern-879208
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1978
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spelling cern-8792082019-09-30T06:29:59Zdoi:10.1038/271425a0http://cds.cern.ch/record/879208engPerron, CCosmic ray source abundance of calciumAstrophysics and AstronomyRe-examines the results of experiments in which ultra-high purity iron targets were irradiated by protons from the two CERN accelerators (600 MeV and 21 GeV); the spallation products were then chemically separated, and their isotopic composition determined by mass spectrometry. Ratios of cross-sections for calcium production by spallation of iron show that /sup 42/Ca, /sup 43/Ca and /sup 44/Ca have about the same abundance, about 10-15% that of iron, confirming earlier studies. (11 refs).oai:cds.cern.ch:8792081978
spellingShingle Astrophysics and Astronomy
Perron, C
Cosmic ray source abundance of calcium
title Cosmic ray source abundance of calcium
title_full Cosmic ray source abundance of calcium
title_fullStr Cosmic ray source abundance of calcium
title_full_unstemmed Cosmic ray source abundance of calcium
title_short Cosmic ray source abundance of calcium
title_sort cosmic ray source abundance of calcium
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1038/271425a0
http://cds.cern.ch/record/879208
work_keys_str_mv AT perronc cosmicraysourceabundanceofcalcium

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