تأثير الضوء على المقتنيات الاثرية العضوية

Abstract

This research aims at studying the sources of the light and its types such as infrared, Uv as well as visible light and X-ray and the impact of each of the mentioned radiation on the organic archaeology such as leathers, textiles, papers , bones, ivory and oil paintings and what they contain: pigment colors. These materials are characterized by being flammable, light sensitive and affected by living things, as the damage is prepotional inversely to the light of the optical wave; the shorter the wave lenghth is ,the greater the damagye is likely to cause more damage , because it contains high energy which is capable of cracking the molecules of some pigments, colors cellu and protein . The interaction with Oxygn in the atmospteve also cause the cracking process.