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Publications [#254730] of Myron L. Wolbarsht

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Journal Articles

  1. Decruz, A; wolbarsht, ML; Andreotti, A; Colombini, MP; Pinna, D; Culberson, CF (2009). Investigation of the Er:YAG laser at 2.94 μm to remove lichens growing on stone. Studies in Conservation, 54(4), 268-277.
    (last updated on 2018/01/22)

    Abstract:
    The analysis of the surface ablation of the removal of lichens from stone by use of a free-running pulsed Er:YAG laser (erbium-doped yttrium, aluminium, garnet crystal) at a wavelength of 2.94 μm demonstrated the complete destruction of the lichen cell wall. In this paper these results are confirmed, and experiments are described which seek to determine the physical/ chemical mechanism of the ablation process using pyrolysis gas chromatography-mass spectrometry (pyrolysis GC-MS), highperformance liquid chromatography (HPLC), Fourier transform infrared spectroscopy (FTIR) and fluorescence microscopy.


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