synchrotron radiation
40 views | +0 today
Follow
synchrotron radiation
Application of synchrotron radiation based techniques
Your new post is loading...
Your new post is loading...
Scooped by Krzysztof Banas
Scoop.it!

Flower still life by Vincent van Gogh rediscovered thanks to new research technique

Flower still life by Vincent van Gogh rediscovered thanks to new research technique | synchrotron radiation | Scoop.it

After lengthy research the Kröller-Müller Museum has another Van Gogh painting to its name: Still life with meadow flowers and roses. Its authenticity had been in doubt ever since it was added to the collection in 1974, due to the unusual size of the canvas and the anomalous signature among other things. The work was dismissed in 2003 and has been listed as “artist: anonymous” ever since. Now, nine years later, a team of researchers from the TU Delft, the University of Antwerp, Deutsches Elektronen-Synchrotron DESY in Hamburg, the Van Gogh Museum and the Kröller-Müller Museum has succeeded in confirming its authenticity. The results are now presented in the article “Rehabilitation of a flower still life in the Kröller-Müller Museum and a lost Antwerp painting by Van Gogh”, a prepublication of "Van Gogh Studies 4". From today, for the first time in its history, the flower piece will be given a prominent position among other works by Vincent van Gogh in the museum’s collection.

more...
No comment yet.
Scooped by Krzysztof Banas
Scoop.it!

X-ray speckle tracking: a new phase-sensitive imaging technique — ESRF

X-ray speckle tracking: a new phase-sensitive imaging technique — ESRF | synchrotron radiation | Scoop.it
A new phase-sensitive technique has been developed at the ESRF to quantitatively map the phase shift induced by a low absorbing sample within a coherent X-ray beam.

 It permits imaging the interior of a sample with micrometre scale or better resolution and offers many advantages over earlier methods such as minimalist setup, high sensitivity and the possibility of investigating dynamic samples.

Speckle-modulated X-ray wavefront.

Soft matter, low density materials, can be imaged with higher sensitivity than ever before using phase sensitive techniques thanks to X-ray beams with a more spherical wavefront and better coherence gained recently through improvements to the X-ray source of the ESRF.

A team of scientists working at beamline BM05 has developed a new phase sensitive technique called X-ray Speckle Tracking (XST) that offers many advantages over existing propagation or grating based techniques. It has a very simple setup that involves a membrane of small grains whose dimensions are only statistically known, for example a biological filtering membrane or abrasive paper (Figure 1), which creates a random pattern on a camera when illuminated with X-rays. This pattern is generated because the features in the membrane create local modifications in the incoming beam wave front: the beam is split into various microwavelets creating a random interference pattern, a granular structure known in optics as ‘speckle pattern’.

more...
No comment yet.
Scooped by Krzysztof Banas
Scoop.it!

Health and Life Sciences: Illuminating link between sodium, calcium and heart beat

Health and Life Sciences: Illuminating link between sodium, calcium and heart beat | synchrotron radiation | Scoop.it

That flutter in your heart may have more to do with the movement of sodium ions than the glance of a certain someone across a crowded room.

Using the Canadian Light Source synchrotron, researchers from the University of British Columbia have revealed, for the first time, one of the molecular mechanisms that regulates the beating of heart cells by controlling the movement of sodium in out of the cells – and what calcium has to do with it. The findings, published February 14, 2012 in the Proceedings of the National Academy of Sciences , sheds new light on this crucial physiological process while revealing the root cause and possible treatment targets of two potentially life-threatening cardiac arrhythmia conditions...

 

more...
No comment yet.
Scooped by Krzysztof Banas
Scoop.it!

Diamond Light Source - Media - Latest News - First users on I13

Diamond Light Source - Media - Latest News - First users on I13 | synchrotron radiation | Scoop.it
Latest news, press releases, images and resources for journalists from the Diamond Light Source synchrotron.
more...
No comment yet.
Scooped by Krzysztof Banas
Scoop.it!

Submit a story of up to 3,000 words inspired by Diamond

Submit a story of up to 3,000 words inspired by Diamond | synchrotron radiation | Scoop.it

A few words of enlightenment...

Diamond Light Source is the UK national synchrotron facility – a 562m particle accelerator nestled in the Oxfordshire countryside. Diamond generates incredibly bright light from infra-red to X-rays and is used by thousands of scientists every year to study all kinds of materials, from artificial hips and samples of the Mary Rose to virus proteins and potential new fuel sources.

To introduce Diamond to a wider audience we are running a short story competition, Light Reading. The rules are simple: we’re inviting you to submit a story of up to 3,000 words inspired by Diamond – the facility, the science and the people. There’s also a Flash Fiction prize for stories under 300 words. Stories can be in any genre and there is no minimum word limit. Diamond will shortlist the best of these stories, which will then be judged by an expert panel. The top three writers will receive a cash prize, and these, along with those highly commended by the judges, will be published in an anthology of short stories.

The deadline for the competition has now passed. Winners will be announced here early in the New Year.

more...
No comment yet.
Scooped by Krzysztof Banas
Scoop.it!

High contrast, high resolution CT scan with reduced dose — ESRF

High contrast, high resolution CT scan with reduced dose — ESRF | synchrotron radiation | Scoop.it
Soft tissue can be imaged with incredible detail using X-rays thanks to a new low dose CT scan technique.

Scientists have developed an X-ray imaging method that could drastically improve the contrast of computed tomography (CT) scans whilst reducing the radiation dose deposited during the scan. The new method is based on the combination of the high contrast obtained by an X-ray technique known as grating interferometry with the three-dimensional capabilities of CT. It is also compatible with clinical CT apparatus, where an X-ray source and detector rotate continuously around the patient during the scan. The results of their research are published in Proceedings of the National Academy of Sciences (PNAS) dated 4-8 June 2012.

The main author of the paper is Irene Zanette from the European Synchrotron Radiation Facility ESRF (Grenoble, FR) and Technical University of Munich TUM (DE), and the team also comprises scientists from the Paul Scherrer Institute PSI (Villigen, CH), the Karlsruhe Institute of Technology KIT (DE), and Synchrotron SOLEIL (Gif-sur-Yvette, FR).

more...
No comment yet.
Scooped by Krzysztof Banas
Scoop.it!

Celebrating 10 years of Diamond Light Source

Celebrating 10 years of Diamond Light Source | synchrotron radiation | Scoop.it

On 27 March 2002 an agreement was signed between the UK government, the Research Councils and the Wellcome Trust, making Diamond Light Source Ltd a reality. Over ten exciting years the project has grown from five people in a shared office to a working synchrotron facility. Operations began in 2007 and since then the synchrotron has been generating the brightest source of X-rays in the UK, used by thousands of scientists every year. Over the course of 2012 Diamond will be hosting a series of open days and other special events to celebrate the achievements of the facility so far and plans for the future. This special edition website will stay live throughout 2012.

more...
No comment yet.
Scooped by Krzysztof Banas
Scoop.it!

Physics News :: New synchrotron X-ray technique could see hidden ...

Scientists from Finland and France have developed a new synchrotron X-ray technique that may revolutionize the chemical analysis of rare materials like meteoric rock samples or fossils. The ...
more...
No comment yet.
Scooped by Krzysztof Banas
Scoop.it!

Australian Synchrotron

Australian Synchrotron | synchrotron radiation | Scoop.it
Australian Synchrotron (#Beamtime #applications now #open #Melbourne #Synchrotron http://t.co/CTQBENI9...)...
more...
No comment yet.