Coated bronze cleaning by Nd:YAG lasers

被引：8

作者：

Siano, S ^{[1
]}

Pini, R ^{[1
]}

Salimbeni, R ^{[1
]}

机构：

[1] CNR, Ist Elettron Quantist, I-50127 Florence, Italy

来源：

LASER TECHNIQUES AND SYSTEMS IN ART CONSERVATION | 2001年 / 4402卷

关键词：

laser cleaning; bronze conservation; laser heating;

D O I：

10.1117/12.445673

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In the present work we investigated in a general way the laser cleaning of coated bronzes by Q-switched Nd:YAG lasers. In particular, the cleaning problems of tinned, silvered and gilded bronzes were theoretically and experimentally analyzed. Besides the laser fiuence, the most critical irradiation parameter resulted to be the pulse duration. We demonstrated the advantage to employ specific Q-switching laser sources providing pulse duration in the range of tens of nanoseconds. The optimized laser ablation conditions were successfully experimented in laser cleaning tests on original ancient objects.

引用

页码：42 / 45

页数：4

共 5 条

[1]

Berducou Marie Cl., 1990, La Conservation en Archeologie

[2]

Fiorentino P., 1982, SURF INTERFACE ANAL, V27, P145, DOI [10.1179/sic.1982.27.4.145, DOI 10.1179/SIC.1982.27.4.145]

[3] Conservation of the eighteenth century lead statue of George II and the role of laser cleaning [J].