Assessment of laser cleaning rate on limestones and sandstones
Identifieur interne : 000691 ( Main/Exploration ); précédent : 000690; suivant : 000692Assessment of laser cleaning rate on limestones and sandstones
Auteurs : Martin Labouré [France] ; Philippe Bromblet [France] ; Geneviève Orial [France] ; Günter Wiedemann [Allemagne] ; Christophe Simon-Boisson [France]Source :
- Journal of Cultural Heritage [ 1296-2074 ] ; 2000.
English descriptors
- KwdEn :
- Teeft :
- Bordeaux, Cleaning rate, Cleaning rates, Cleaning speed, Colour, Colour measurements, Colour variation, Crust, Different stones, Emission rate, Emission rates, European project, Explosive vaporization, Fraunhofer institut, German sandstone, Gure, Laboure, Large laser, Laser, Laser ablation, Laser cleaning, Limestone, Maximum frequency, Medicales elsevier, Minimum number, Monuments historiques, Notre dame limestone, Optimum cleaning, Other hand, Particle size distribution, Project objective, Pulse energy, Rouen limestone, Same time, Sandstone, Seeberger sandstone, Spot area, Thick crust, Uence, Water spraying.
Abstract
Abstract: Within the framework of a European project, three cleaning laser devices are tested to evaluate the influence of different parameters on stone cleaning rate and efficiency. The project objective is to design a large surface-cleaning laser. One of the devices is a prototype with some technological improvements compared to the lasers used today for restoration. The tests are performed on limestone and sandstone covered with various dirt layers. The influence of fluence, water spraying, spot area, frequency, as well as particle emission rate is investigated. Results allow a comparison of the importance of each parameter and confirm the increase in cleaning speed of the new prototype. Nevertheless, it can be concluded that an automatic device will be suitable to attain a cleaning speed competitive with other traditional cleaning techniques.
Url:
DOI: 10.1016/S1296-2074(00)00195-3
Affiliations:
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number</term><term>Monuments historiques</term><term>Notre dame limestone</term><term>Optimum cleaning</term><term>Other hand</term><term>Particle size distribution</term><term>Project objective</term><term>Pulse energy</term><term>Rouen limestone</term><term>Same time</term><term>Sandstone</term><term>Seeberger sandstone</term><term>Spot area</term><term>Thick crust</term><term>Uence</term><term>Water spraying</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Within the framework of a European project, three cleaning laser devices are tested to evaluate the influence of different parameters on stone cleaning rate and efficiency. 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