Comparison of Different Non-invasive µ-Raman Set-ups for Studying Pigments in Art Works

AbstractEffective care of large-scale museum collections requires planning that includes the conservation treatment of specific groups of art works, such as appropriate cleaning strategies. Optical coherence tomography (OCT) has been successfully applied as a non-invasive method for the stratigraphic visualisation of the uppermost transparent and semi-transparent layers in paintings, such as varnishes. Several OCT case study examples have further demonstrated the capabilities of the non-contact interferometric technique to measure the thickness of the various varnish layers, to help monitor cleaning and associated optical changes, and to detect past restorations. OCT was applied for the detection of varnishes to 13 paintings by Edvard Munch (1863–1944) owned by the Norwegian National Museum of Art. The paintings have a controversial and complex varnish history and are displayed as a group according to their acquisition legacy. A prototype high-resolution portable SdOCT instrument was used in combination with complementary imaging techniques. Questions concerning thickness, stratigraphy and the identification/location of the artist’s original varnish layers and/or pigmented glazes were addressed. Findings confirmed the complexity of the historical layers present and provided new evidence for Munch’s use of transparent and semi-transparent layers as part of an occasional, localised varnishing and/or glazing technique.

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On the mechanism of the impact of paintings on the lumbosacral joint

Вопросы культурологии ◽

10.33920/nik-01-2001-08 ◽

2020 ◽

pp. 60-83

Author(s):

I. Benditsky ◽

V. Shestakov ◽

D. Shestakov

Keyword(s):

Cultural Value ◽

Lumbar Region ◽

Normal Functions ◽

Non Invasive ◽

Treatment And Prevention ◽

Post Surgery ◽

Art Works ◽

Invasive Method ◽

Current Article ◽

The Impact

Current article elaborates on the mechanism of the influence of cultural value on patient’s consciousness, which causes to restore normal functions of the spine and sacrum-lumbar region. A non-invasive method to relieve spastics was developed, basing on the practice of application of the archetypical images to remove emotional blockade that is caused to the nervous system by informational impact. Authors prove presence of the effect from cultural value on consciousness of the patient. Effect is established as an electromagnetic interaction between the patient and the cultural field of the painting. Article describes the algorithm of such influence and mechanism of verification of art works suitable for the prevention of affliction symptoms. The results of this research could be applied for treatment and prevention of various sacrum related ailments, post-surgery rehabilitation and drug treatment. Studies propose a new art direction — sacral realism, while establishing objective criteria for assessing the relation of art works in this new genre.

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Algorithm-improved high-speed and non-invasive confocal Raman imaging of 2D materials

National Science Review ◽

10.1093/nsr/nwz177 ◽

2019 ◽

Vol 7 (3) ◽

pp. 620-628 ◽

Cited By ~ 2

Author(s):

Sachin Nair ◽

Jun Gao ◽

Qirong Yao ◽

Michael H G Duits ◽

Cees Otto ◽

...

Keyword(s):

High Speed ◽

2D Materials ◽

Cost Effective ◽

Raman Microscopy ◽

Confocal Raman Microscopy ◽

Non Invasive ◽

Spatially Resolved ◽

Art Works ◽

Confocal Raman ◽

Sample Damage

Abstract Confocal Raman microscopy is important for characterizing 2D materials, but its low throughput significantly hinders its applications. For metastable materials such as graphene oxide (GO), the low throughput is aggravated by the requirement of extremely low laser dose to avoid sample damage. Here we introduce algorithm-improved confocal Raman microscopy (ai-CRM), which increases the Raman scanning rate by one to two orders of magnitude with respect to state-of-the-art works for a variety of 2D materials. Meanwhile, GO can be imaged at a laser dose that is two to three orders of magnitude lower than previously reported, such that laser-induced variations of the material properties can be avoided. ai-CRM also enables fast and spatially resolved quantitative analysis, and is readily extended to 3D mapping of composite materials. Since ai-CRM is based on general mathematical principles, it is cost-effective, facile to implement and universally applicable to other hyperspectral imaging methods.

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Colours and pigments in late ukiyo-e art works: A preliminary non-invasive study of Japanese woodblock prints to interpret hyperspectral images using in-situ point-by-point diffuse reflectance spectroscopy

Microchemical Journal ◽

10.1016/j.microc.2018.02.015 ◽

2018 ◽

Vol 139 ◽

pp. 94-109 ◽

Cited By ~ 8

Author(s):

Josefina Pérez-Arantegui ◽

David Rupérez ◽

David Almazán ◽

Nerea Díez-de-Pinos

Keyword(s):

Diffuse Reflectance ◽

Diffuse Reflectance Spectroscopy ◽

Reflectance Spectroscopy ◽

Hyperspectral Images ◽

Non Invasive ◽

Woodblock Prints ◽

Art Works ◽

Japanese Woodblock Prints

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X-ray microtomography

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100107058 ◽

1988 ◽

Vol 46 ◽

pp. 998-999

Author(s):

H.W. Deckman ◽

B.F. Flannery ◽

J.H. Dunsmuir ◽

K.D' Amico

Keyword(s):

Computed Tomography ◽

Internal Structure ◽

Imaging Technique ◽

Three Dimensional ◽

Tissue Structure ◽

Individual Element ◽

X Ray ◽

Non Invasive ◽

Panoramic Imaging ◽

Three Dimensional Images

We have developed a new X-ray microscope which produces complete three dimensional images of samples. The microscope operates by performing X-ray tomography with unprecedented resolution. Tomography is a non-invasive imaging technique that creates maps of the internal structure of samples from measurement of the attenuation of penetrating radiation. As conventionally practiced in medical Computed Tomography (CT), radiologists produce maps of bone and tissue structure in several planar sections that reveal features with 1mm resolution and 1% contrast. Microtomography extends the capability of CT in several ways. First, the resolution which approaches one micron, is one thousand times higher than that of the medical CT. Second, our approach acquires and analyses the data in a panoramic imaging format that directly produces three-dimensional maps in a series of contiguous stacked planes. Typical maps available today consist of three hundred planar sections each containing 512x512 pixels. Finally, and perhaps of most import scientifically, microtomography using a synchrotron X-ray source, allows us to generate maps of individual element.

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