Notice catalographique « Proceedings of the International Conference, Lasers in the Conservation of Artworks IV, LACONA IV, September 11-14 2001, Paris, France (Journal of Cultural Heritage vol.4 : supplement 1) »

Contents:

LACONA: past, present, and future?

Chapter 1: Cleaning of stone and ivory

Report on session "Cleaning of stone and ivory"

Chapter 1.1 Stone cleaning: ethical and safety issues, case studies

Laser cleaning as a part of the restoration process: removal of aged oil paints from a Renaissance sandstone portal in Dresden, Germany

Diversity of the cleaning procedures including laser for the restoration of carved portals in France over the last 10 years

Laser cleaning in French museums: towards instating a methodology

A review of health hazards linked to the use of lasers for stone cleaning

Hazardous emissions and health risk during laser cleaning of natural stones

Effect of low and high fluence on experimentally laser-cleaned sandstone and marlstone tablets in dry and wet conditions

Application limits of Q-switched Nd:YAG laser irradiation for stone cleaning based on colour measurements

Chapter 1.2 New trends in stone and ivory cleaning

Non-laser light divestment in conservation and preservation

Two new mechanisms for laser cleaning using Nd:YAG sources

Acoustic monitoring for the laser cleaning of sandstone

A variable pulse width Nd:YAG laser for conservation

Short free running Nd:YAG laser to clean different encrustations on Pentelic marble: procedure and evaluation of the effects

Comparative study on the application of the 1st and the 3rd harmonic of a Q-switched Nd:YAG laser system to clean black encrustation on marble

The use of added matrix elements such as chemical assists, colorants and controlled plasma formation methods to enhance laser conservation of works of art

Removal of dye-based ink stains from ivory: evaluation of cleaning results based on wavelength dependency and laser type

Toward an optimised laser cleaning procedure to treat important palaeontological specimens
F. Landucci, E. Pecchioni, D. Torre, P. Mazza, R. Pini, S. Siano, R. Salimbeni

Chapter 2: Cleaning of glass and metals

Report on session "Cleaning of glass and metals"

Laser cleaning of stained glass windows - Final results of a research project

Excimer laser for fundamental studies in cleaning hewn stone and medieval glass

The Santi Quattro Coronati by Nanni di Banco: cleaning of the gilded decorations

Cleaning of corroded iron artefacts using pulsed TEA CO2- and Nd:YAG-lasers

Laser characterization and cleaning of 19th century daguerreotypes II

Laser cleaning methodology for the preservation of the Porta del Paradiso by

Laser and chemical cleaning tests for the conservation of the Porta del Paradiso
Laser cleaning of tarnished silver and copper threads in museum textiles

Experimental study on the effect of wavelength in the laser cleaning of silver threads

Chapter 3: Cleaning of organic materials: paper, parchment, textile, wood

Report on session "Cleaning of organic materials: paper, parchment, textile, wood"

The application of laser technology to the conservation of a Haida totem pole

Nd:YAG laser with wavelengths from IR to UV (o, 2w, 3w, 4w) and corresponding applications in conservation of various artworks

Diagnostics of parchment laser cleaning in the near-ultraviolet and near-infrared wavelength range: a systematic scanning electron microscopy study

Laser cleaning of paper using Nd:YAG laser running at 532 nm

Experimental investigations of stained paper documents cleaned by the Nd:YAG laser pulses

Positive findings for laser use in cleaning cellulosic supports

Chapter 4: Removal of surface treatments

Report on session "Removal of surface treatments"

Er:YAG laser: an innovative tool for controlled cleaning of old paintings: testing and evaluation

Controlled UV laser cleaning of painted artworks: a systematic effect study on egg tempera paint samples

Uncovering of scalar oxidation within naturally aged varnish layers

Study of the effects of laser radiation on epoxy resins and epoxy systems on stone, ceramic, and glass surfaces

Initial results on laser cleaning at the Victoria & Albert Museum, Natural History Museum and Tate Gallery

Chapter 5: Interaction with polychromies and discoloration

Report on session "Interaction with polychromies and discoloration"

Laser yellowing: myth or reality?
V. Vergès-Belrnin, C. Dignard

Laser cleaning: is there specific laser esthetics?

Yellowing effect and discoloration of pigments: experimental and theoretical studies

Evaluation of the chemical and physical changes induced by KrF laser irradiation of tempera paints

Laser irradiation of medieval pigments at IR, VIS and UV wavelengths

Studies towards a thorough understanding of the laser-induced discoloration mechanisms of medieval pigments

Laser interaction with polychromy: laboratory investigations and on-site observations

Chapter 6: Non-cleaning applications

Report on session "Non-cleaning applications"(Analysis)

Non-divestment laser applications in art conservation

Chapter 6.1. Analysis

A topographical assessment and comparison of conservation cleaning treatments

Characterisation of lustre and pigment composition in ancient pottery by laser induced fluorescence and breakdown spectroscopy

Raman laser fibre optic strategy for non-destructive pigment analysis. Identification of a new yellow pigment (Pb, Sn, Sb) from the Italian XVII century painting S
Study of Raman spectra of pigment mixtures

Optical and structural properties of gemmological materials used in works of art and handicraft

Chapter 6.2. Remote diagnostic

New applications of Scanning Laser Doppler Vibrometry (SLDV) to non-destructive diagnostics of artworks: mosaics, ceramics, inlaid wood and easel painting

A novel hyper-spectral imaging apparatus for the non-destructive analysis of objects of artistic and historic value

Laser cleaning of inorganic encrustation on excavated objects: evaluation of the cleaning result by means of multi-spectral imaging

Low-cost sensor system for online monitoring during laser cleaning

Structural evaluation of restoration processes with holographic diagnostic

Chapter 6.3. Sampling, welding, virtual moulding

A novel approach for high selective micro-sampling of organic painting materials by Er:YAG laser ablation

Application of laser welding to the restoration of the ostensory of the martyr St. Ignatius from Palermo

The laser recording and virtual restoration of a wooden sculpture of Buddha

• Lasers in conservation and restoration
• Laser cleaning
• Art objects - Conservation and restoration
• Objets d'art - Conservation et restauration