Ion beam study of a possible extraterrestrial body signature in Libyan desert glass

Citation
C. Cipriani et al., Ion beam study of a possible extraterrestrial body signature in Libyan desert glass, NUCL INST B, 170(1-2), 2000, pp. 187-192
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN journal
0168-583X → ACNP
Volume
170
Issue
1-2
Year of publication
2000
Pages
187 - 192
Database
ISI
SICI code
0168-583X(200009)170:1-2<187:IBSOAP>2.0.ZU;2-B
Abstract
Ion beams have been employed to get micro-PIXE measurements and ionolumines cence analyses on a natural silica glass, known as Libyan desert glass (LDG ), representing a probable fusion product of desert sandstone due to the im pact of an extraterrestrial body. In particular some brown streaks, which a re present in a few specimens and considered as traces of the impactor, hav e been characterized. The presence of discrete bands with different lumines cence intensity has been revealed by both ionoluminescence and cathodolumin escence. Several hypotheses have been proposed in order to explain the lumi nescence properties of this material. Finally, the usefulness of the synerg ic combination of ionoluminescence and micro-PIXE, to characterize LDG, has been showed. (C) 2000 Elsevier Science B.V. All rights reserved.