Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

News from the fields – X-Raying for the core

23.07.2007
A device that is exclusively useful for geological survey was developed by specialists of the All-Russian Scientific Research Institute of Technical Physics and Automation, (Moscow). This is a portable analyzer of substance composition.

It helps to simultaneously determine quickly, automatically and, most importantly – not in the laboratory conditions but directly whilst in the field – the content in the rock specimen of up to 20 chemical elements out of the elements placed in the D.I. Mendeleyev periodic table between calcium and bismuth. This includes almost the entire table: practically 4 entire periods - 60 elements, not taking lanthanoids into account.

The device action is based on the following – atoms stimulation by a small-size X-ray generator with further measuring of the “induced” secondary radiation. It is sufficient to take a geological core (a stone cylinder sown out of the rock), place it into the device (when assembled, it is no more than a covered rifle) – and all the rest will be done by the device automatically.

The smart device will independently run an X-ray generator over the surface of the core lying horizontally, the X-ray generator stimulating all atoms of the specimen within a radius of slightly less than 2 centimeters. The device will independently measure “secondary” fluorescent radiation: the atoms stimulated by X-ray, when coming back to the quiescent state, educe excess energy in the form of radiation, and the device records the radiation. All by itself the device will calculate the result, remember and display it on the PC display in the form of a simple and comprehensible diagram. So, it only remains for the geologist to extract the specimen and to provide the device with the necessary quantity of electric power.

The device capabilities are certainly not infinite. For instance, if some chemical element’s content in the specimen is less than one hundredth of a percent, the device would not notice the element. If the core is longer than a meter – the core will have to be divided into parts, otherwise in would not go in the device. The device will not be able to operate in severe frost, neither would it run in scorching heat: its operating temperature range is between minus 20 degrees C and plus 40 degrees C. It is able to act uninterruptedly for no more than six hours, then it needs rest. But it can be powered by both a 12V battery and the 220V alternating current.

On the other hand, the analyzer is light-weight – the weight of the sensor per se is only 2 kilograms, and that of the entire device is 12 kilograms. Of course, a PC should be added. However, all the equipment would easily find room even in a smallest expedition car, at the worst, the device can be carried even in a rucksack. And it is possible to find out on the spot, for example, the amount and kind of ferrous and non-ferrous metals hidden in the rock. There is no need to carry tons of specimen to analyze them later in town – at least rough analysis will be done directly in the field.

Theoretically, the device can be adapted for analysis (geologists call it sounding) of excavation walls, for sample analysis in the knocked off mass, sludge analysis, analysis of concentrates and finished product. Visitors of the recent spring exhibition “Analytics-2007” (Moscow, Sokolniki) could see one of such devices, and the most curious ones – could even try it in operation. But this analyzer is not a single one – experts found it to be so good that recommended that it should be entered into the state register of the RF measurement instrumentation and “multipliedi”. Geologists are pleased.

Nadezda Markina | alfa
Further information:
http://www.informnauka.ru

More articles from Earth Sciences:

nachricht Colorado River's connection with the ocean was a punctuated affair
16.11.2017 | University of Oregon

nachricht Researchers create largest, longest multiphysics earthquake simulation to date
14.11.2017 | Gauss Centre for Supercomputing

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

Im Focus: Wrinkles give heat a jolt in pillared graphene

Rice University researchers test 3-D carbon nanostructures' thermal transport abilities

Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

NASA detects solar flare pulses at Sun and Earth

17.11.2017 | Physics and Astronomy

NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures

17.11.2017 | Health and Medicine

The importance of biodiversity in forests could increase due to climate change

17.11.2017 | Studies and Analyses

VideoLinks
B2B-VideoLinks
More VideoLinks >>>