Старый 31.07.2008, 10:16 Язык оригинала: Русский       #1
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По умолчанию Physicists have discovered an unknown portrait by Van Gogh

http://rnd.cnews.ru/natur_science/ne...8/07/31/310100

Physicists have discovered an unknown portrait by Van Gogh

With the new technology an international group of scientists have discovered an unknown portrait by Vincent van Gogh by a coat of paint later, the work of the artist.
 
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The great Dutch painter often wrote his new paintings on old canvas, on top of earlier works. According to art historians, more than a third canvases "secret" early versions of the same pictures or unknown work.

In particular, the canvas "of grass flap» (Patch of Grass), written by Van Gogh in Paris in 1887 and stored in Kreller-Muller Museum in Otterlo (the Netherlands), is still an enigma to art historians. Previous studies have shown paintings that under the top layer of paint may be hiding a portrait - with the traditional method of X-ray scanning XRR (X-ray radiation transmission radiography) managed to get the vague outlines of a female head. However, this method does not allow to obtain a clearer picture.

Scientists from the universities of Delft (The Netherlands) and Antwerp (Belgium) used to study the paintings " The flap of grass "a new technology, which is based on the use of synchrotron radiation and fluorescence spectroscopy.

Cloth scanned using synchrotron radiation source DORIS at an accelerating installation of DESY (Hamburg, Germany), with the measured intensity of fluorescence layers of paint. During the two days was scanned plot paintings, 17,5 x 17,5 cm, under which was previously detected a vague outline of the head.

As a result of scanning were obtained distribution of elements and pigments of the paint layer, which allowed to reconstruct the image with high accuracy. Scientists even managed to get a color picture of a female portrait distributions obtained by mercury and antimony, comprising some of the colors.

Presumably, a female head sketch was written by the artist in the period from October 1884 to May 1885 - this was the time Van Gogh painted a series similar to the manner of portraits of Dutch farmers in the village Nyuenen (Nuenen). Etudes further served to create his famous painting "The Potato Eaters."

According to researchers, this technique will allow more detailed study of the creative methods of Van Gogh and opens his previously unknown paintings and sketches.
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Этот пользователь сказал Спасибо fross за это полезное сообщение:
artemirra (31.07.2008)
Старый 31.07.2008, 10:28 Язык оригинала: Русский       #2
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that is, live it still does not see ... or it would be interesting to accurately determine what is hidden under the surface and somehow transfer it onto canvas and hang it next to your main work ... very interesting could happen .. .



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Старый 31.07.2008, 15:49 Язык оригинала: Русский       #3
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I think that over time it will be possible to make precise and sufficiently high-quality images that were recorded with the help of this technology. And if you do not hang close, then typing in the major directories will be. Very interesting technology, opens directly yet boundless prospects for researchers. I think that if it will deploy everywhere, it is increase the capacity of experts. The more we know about the "work kitchen" artist of all stages of the painting, the less chance there is poddelschikam. Because play picturesque upper layer, they still can, simitirovat lower layers - much harder.



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Евгений (31.07.2008)
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