Műtárgyvédelem, 2008 (Magyar Nemzeti Múzeum)

Márton Zsuzsanna - Dobai Csaba - Galambos Éva - Dicső Ágnes - Nemcsics Imre - Kántor Zoltán - Lengyel László - Kovács Zoltán - Sánta Imre - Szentkirályi Miklós: Lézerek alkalmazása a restaurálásban Magyarországon : a Déri-projekt eredményeiről

is thinned, were over-cleaned before the desired level of varnish removal was reached. In the case of a strongly deteriorated binding material, the mechanical effect of the laser pulses increased the pealing off of the painted layer. Preliminary conservative treatment is needed before laser cleaning in such cases. Certain pigments are sensitive for the UV wavelengths, so it is essential to keep a continuous varnish layer on the surface to prevent the damage of the pigments.

Due to the inhomogeneity of the surface of the real objects, determination of the laser cleaning conditions in advance is not safe and satisfactory. An on-line control method of the process is necessary. In the present project, laser induce breakdown spectroscopy (LIBS) was tested as a candidate method for supplying a feedback signal for the cleaning level. It was found that in contradiction with the previous literature data, LIBS is not a safe method for controlling laser cleaning on-line. Preliminary experiments indicate that fluorescence spectroscopy could be an alternative to LIBS.

A szerzők cime/Authors address:

Kántor Zoltán

Pannon Egyetem/University Pannónia 8201 Veszprém, Egyetem u. 10.

Márton Zsuzsanna; Sánta Imre

Pécsi Tudományegyetem Dél-Dunántúli Kooperációs Kutatási Központ/University of Pécs South- Trans-Danubian Cooperative Research Center 7624 Pécs, Ifjúság útja 6. e-mail: marton@fizika.ttk.pte.hu

Dicső Ágnes/Ágnes Dicső; Dobai Csaba/Csaba Dobai

Magyar Restaurátorok Egyesülete/Association of the Hungarian Restorers

1146 Budapest, Báthori u. 10.

Galambos Éva; Kovács Zoltán; Lengyel László; Nemcsics Imre; Szentkirályi Miklós Szépművészeti Múzeum/Museum of Fine Arts 1146 Budapest, Dózsa György út 41.

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