Production of selected cosmogenic radionuclides by muons: 2. Capture of negative muons

B. Heisinger, D. Lal, A. J.T. Jull, P. Kubik, S. Ivy-Ochs, K. Knie, E. Nolte

Research output: Contribution to journalArticlepeer-review

323 Scopus citations

Abstract

We have determined the production yields for radionuclides in Al2O3, SiO2, S, Ar, K2SO4, CaCO3, Fe, Ni and Cu targets, which were irradiated with slow negative muons at the Paul Scherrer Institute in Villigen (Switzerland). The fluences of the stopped negative muons were determined by measuring the muonic X-rays. The concentrations of the long-lived and short-lived radionuclides were measured with accelerator mass spectrometry (AMS) and γ-spectroscopy, respectively. Special emphasis was put on the radionuclides 10Be, 14C, and 26Al produced in quartz targets, 26Al in Al2O3 and S targets, 36Cl in K2SO4 and CaCO3 targets, and 53Mn in Fe2O3 targets. These targets were selected because they are also the naturally occuring target minerals for cosmic ray interactions in typical rocks. We also present results of calculations for depth-dependent production rates of radionuclides produced after cosmic ray μ- capture, as well as cosmic ray-induced production rates of geologically relevant radionuclides produced by the nucleonic component, by μ- capture, by fast muons and by neutron capture.

Original languageEnglish (US)
Pages (from-to)357-369
Number of pages13
JournalEarth and Planetary Science Letters
Volume200
Issue number3-4
DOIs
StatePublished - 2002

Keywords

  • Cosmogenic elements
  • Production
  • Radio-active isotopes
  • Rates

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

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