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Problems Related to Interplanetary Matter (1961) / Chapter Skim
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COSMOGENIC NUCLIDES IN THE HAMLET METEORITE
Pages 51-52

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From page 51...
... Gross spectra taken later indicate that the 800-Kev peak decays appreciably with time, while the 500-Kev peak is essentially constant. Under the assumption that the point of the pyramid defines the front of the meteorite during infall, analyses of various cosmogenic nuclides were made and are in progress on material from the base, presumably near the original surface.
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From page 52...
... Also, the effect of working with material which was presumably quite near the preatmospheric surface should be given detailed consideration. Finally, the cosmogenic Co isotopes may have been in large part produced by meson interactions with Ni, which would make comparison with the cyclotron irradiation even more questionable.
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Key Terms

  • activity ratio
  • silicate phase
  • cyclotron irradiation
  • meson interactions
  • cyclotron bombardment

  • teresting discrepancy
  • ray irradiated
  • cosmic irradiation
  • proton irradiation
  • roughly pyramidal

  • pyramid defines
  • intense peak
  • mentioned range
  • iron phases
  • pyramidal shape

  • presumably near
  • discrepancy comes
  • peak decays
  • square base
  • noble gases

  • gross spectra
  • peaks assignable
  • irradiated specimen
  • reasons discussed
  • iron phase

  • valid duplication
  • nuclides mentioned
  • extracting noble
  • approximately square
  • decays appreciably


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