YAG-LASER CLEANING OF ARCHAEOLOGICAL MATERIALS IN JORDANIAN MUSEUMS

This study investigates new methods in the Jordanian museums in cleaning of  ancient materials by laser cleaning of corrosion or patina products on archaeological corroded objects. This aproach aiming to introduce a methodology for the optimal laser cleaning attitude in archaeological artefacts in Jordanian meuseums. It is study focused on the feasibility of YAG Laser in cleaning of Archaeological artefacts both organic and inorganic that covered with a corrosion or crust. The clustering of inclusion particles of the patina some are hard to remove by the procedure of conventional cleaning techniques, there is an apparent danger by use the traditional methods. These methods escalate the risk of the oxidised corrosion layer breaking away which will lead to loss of details about the the object and other important surface information. The advantage of using YAG pulsed lasers for cleaning of archaeological artefacts patina or corrosion. The lasr technique is well precised controlled and can be cleaned layer by layer or localizied. Thus, it is very significant to identify the chemical composition of the studied artifact surfaces before and after laser treatment. A series of laser cleaning studies has been done on test replica in the laboratory and artificially corroded.