Depth and size dependence of cosmogenic nuclide production rates in stony meteoroids

Details Depth and size dependence of cosmogenic nuclide production rates in stony meteoroids Depth and size dependence of cosmogenic nuclide production rates in stony meteoroids

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993gecoa..57.2361b&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 57, no. 10, p. 2361-2375.

Other

36

Cosmic Rays, Meteoroids, Nuclides, Radiation Effects, Chemical Composition, Mass Spectroscopy, Radiation Shielding, Meteorites, Depth, Size, Cosmogenic Material, Nuclides, Production Rate, Origin, Formation, Isotopes, Mass Spectrometry, Stony Meteorites, Energy, Chondrites, Madhipura, Udaipur, Bansur, Samples, Meteorite, Shielding, Laboratory Studies, Dhajala, Model, Procedure, Exposure Age, Comparison, Isotopic Ratios, Radionuclides, Theoretical Studies, Ordinary Chondrites, Helium 3, Neon 20, Neon 21, Neo

Scientific paper

Depth profiles of the cosmogenic isotopes He-3, Ne-20, Ne-21, Be-10, and Al-26 were measured by conventional and accelerator mass spectrometry in the Madhipura, Udaipur, and Bansur chondrites. Shielding depths of the samples and meteorite sizes were derived from cosmic ray track density data and from Ne-21 exposure ages. Be-10 and Al-26 were also measured in seven fragments of Dhajala. These measurements, together with the existing Mn-53 profiles in these meteorites and with other well-investigated depth profiles of cosmogenic radionuclides and rare gas isotopes in ALHA 78084, Keyes, St. Severin, Jilin, and Knyahinya, now provide and experimental data base describing the depth and size dependence of cosmogenic nuclides in ordinary chondrites for preatmospheric radii between 8.5 cm and about 100 cm. Conclusions stemming from these measurements are presented. The observed depth profiles and the dependence of the center production rates on meteoroid size are well reproduced by Monte Carlo-based model calculations of the intra- and internuclear cascade of galactic protons in meteoritic matter and on experimental and theoretical excitation functions of the underlying nuclear reactions.

Affiliated with

Also associated with

No associations

Rating

Depth and size dependence of cosmogenic nuclide production rates in stony meteoroids does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Depth and size dependence of cosmogenic nuclide production rates in stony meteoroids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Depth and size dependence of cosmogenic nuclide production rates in stony meteoroids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1853425