Abstract
Annealed meteoritic phosphate crystals have been irradiated by 600 MeV protons to simulate cosmic ray irradiation in space. Spallation recoil tracks were then revealed, which mimic fission tracks, specially when observed in the SEM. A production yield of 9.3 {+-} 2.2 x 10{sup 8} spallation track per proton has been obtained for merrillite, and a substantially lower value (2.5 per proton) for apatite. A nominal production yield in space of 6 tracks per year has been derived, which may be used for a rough estimate of spallation track densities in chondritic merrillite. (Author).
Perron, C
[1]
- Centre National de la Recherche Scientifique (CNRS), 75 - Paris (France). Inst. d`Astrophysique
Citation Formats
Perron, C.
Cosmic ray-induced spallation recoil tracks in meteoritic phosphates: simulation at the CERN synchrocyclotron.
United Kingdom: N. p.,
1993.
Web.
doi:10.1016/0969-8078(93)90168-4.
Perron, C.
Cosmic ray-induced spallation recoil tracks in meteoritic phosphates: simulation at the CERN synchrocyclotron.
United Kingdom.
https://doi.org/10.1016/0969-8078(93)90168-4
Perron, C.
1993.
"Cosmic ray-induced spallation recoil tracks in meteoritic phosphates: simulation at the CERN synchrocyclotron."
United Kingdom.
https://doi.org/10.1016/0969-8078(93)90168-4.
@misc{etde_493431,
title = {Cosmic ray-induced spallation recoil tracks in meteoritic phosphates: simulation at the CERN synchrocyclotron}
author = {Perron, C}
abstractNote = {Annealed meteoritic phosphate crystals have been irradiated by 600 MeV protons to simulate cosmic ray irradiation in space. Spallation recoil tracks were then revealed, which mimic fission tracks, specially when observed in the SEM. A production yield of 9.3 {+-} 2.2 x 10{sup 8} spallation track per proton has been obtained for merrillite, and a substantially lower value (2.5 per proton) for apatite. A nominal production yield in space of 6 tracks per year has been derived, which may be used for a rough estimate of spallation track densities in chondritic merrillite. (Author).}
doi = {10.1016/0969-8078(93)90168-4}
journal = []
issue = {1-4}
volume = {22}
journal type = {AC}
place = {United Kingdom}
year = {1993}
month = {Dec}
}
title = {Cosmic ray-induced spallation recoil tracks in meteoritic phosphates: simulation at the CERN synchrocyclotron}
author = {Perron, C}
abstractNote = {Annealed meteoritic phosphate crystals have been irradiated by 600 MeV protons to simulate cosmic ray irradiation in space. Spallation recoil tracks were then revealed, which mimic fission tracks, specially when observed in the SEM. A production yield of 9.3 {+-} 2.2 x 10{sup 8} spallation track per proton has been obtained for merrillite, and a substantially lower value (2.5 per proton) for apatite. A nominal production yield in space of 6 tracks per year has been derived, which may be used for a rough estimate of spallation track densities in chondritic merrillite. (Author).}
doi = {10.1016/0969-8078(93)90168-4}
journal = []
issue = {1-4}
volume = {22}
journal type = {AC}
place = {United Kingdom}
year = {1993}
month = {Dec}
}