X-ray fluorescence - analysis of 19th century stamps

摘要

Latin-American stamps of the period 1850-1900 were analyzed and scanned with a portable x-ray fluorescence equipment composed of a small size x-ray tube and a Si-PIN detector with a capillary collimator, with the aim of identifying their characteristic pigments, establishing in which period of time pigments containing inorganic components have been employed and their evolution vs time. Copyright (C) 2008 John Wiley & Sons, Ltd.