Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volume 211, Issue 1, Pages 133-137Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0168-583X(03)01165-0
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The famous frescos by Giotto in the Chapel of the Scrovegni in Padua were systematically analysed in more than 300 points with various types of portable equipments based on energy dispersive X-ray fluorescence. A large number of golden haloes in particular were analysed, several black haloes where a golden leaf had come off, as well as several black haloes with no gold. From the measurements it could be deduced that the golden leaf is composed of pure gold, with a mean thickness of about 1.6 mum. (C) 2003 Elsevier B.V. All rights reserved.
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