Subject: Reproduction of museum objects
In response to Will Jeffers request for information about laser scattering with metal objects, yes we have had problems! Last year we attempted to make a replica of a highly corroded and concreted copper kettle and were disappointed when we were unable to get clear imagery. We attempted to use a biomodeling technique offered by Anatomics in Brisbane in which a model is constructed using a laser-hardened and UV cured polymer. A large amount of scattering was produced due to the metal and the corrosion products present. It is possible that a 3D Ultrasound technique may be more successful for metal and we may attempt to use it in the future. Jessica Turner Materials Conservator, Queensland Museum P.O. Box 3300 Sth BNE, QLD, 4101, Australia +61 7 3840 7681 Fax: +61 7 3846 1918 *** Conservation DistList Instance 12:29 Distributed: Tuesday, September 22, 1998 Message Id: cdl-12-29-009 ***Received on Monday, 21 September, 1998