Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Neutrino To Be Lucky Catch

15.03.2005


Neutrinos released in Switzerland are due to be caught in Italy under the international project OPERA. The system of detectors for identifying these mysterious particles is developed by a joint effort of Russian and Ukrainian scientists.



Specialists from the Joint Institute for Nuclear Research (Dubna, Russia) and Institute of Scintillator Materials NASU (Kharkov, Ukraine) have joined the Project OPERA that is a biggest and most expensive international experiment in the field of physics.

Under this project, neutrino beam will be generated by proton accelerator in the CERN (Geneva, Switzerland). At a speed close to that of light, the beam will instantly cover the distance of 730 km under ground and reach the laboratory Gran Sasso (Italy) situated at a depth of 1.5 km in the side halls of an automobile tunnel. There, the beam will go through the detectors and leave its traces.


A large and dense net is needed for catching neutrinos that can easily go throughout the Earth. To achieve this goal, scientists have designed a huge complex target having dimensions of 10x10x100 m and several systems of particle detection. Its walls are made of bricks that consist of nuclear emulsions and lead sheets. Plastic scintillators, placed between the bricks, are needed to produce a flash of light upon absorption of an ionizing particle, specifically, neutrino. There are also electronic devices to register the flash and identify the actual brick, where the neutrino interaction took place.

However, that is only the beginning of detection process. Then, scientists need to take the brick out of the wall and study particle tracks left on each of the emulsion sheets, which will finally allow for neutrino identification.

One can imagine the scale of work looking at these figures: the target is built of 62 walls containing in total 206336 bricks; each brick is made of 57 nuclear emulsions and 56 lead sheets. The analysis of one brick with the use of latest computer technologies and special equipment will take tens of hours. The Ukrainian scientists are involved into the OPERA project as the designers of new scintillator making technique. They have built the world’s largest furnace for raw material processing and produced 33 thousands of 7-meter-long strips with a total weight of 70 tons.

Why the scientists have launched this difficult, expensive, and labour-consuming project? Because discovering the properties of neutrino will in the long run help to understand certain cosmic processes, e.g., the expansion of the universe. Apparently, the mechanism of mass formation in neutrino is somewhat different from that in other particles. It is not excluded that neutrino is the key to future physics.

Sergey Komarov | alfa
Further information:
http://www.informnauka.ru

More articles from Physics and Astronomy:

nachricht Magnetic nano-imaging on a table top
20.04.2018 | Georg-August-Universität Göttingen

nachricht New record on squeezing light to one atom: Atomic Lego guides light below one nanometer
20.04.2018 | ICFO-The Institute of Photonic Sciences

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

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

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

Im Focus: Basel researchers succeed in cultivating cartilage from stem cells

Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.

Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...

Im Focus: Like a wedge in a hinge

Researchers lay groundwork to tailor drugs for new targets in cancer therapy

In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Magnetic nano-imaging on a table top

20.04.2018 | Physics and Astronomy

Start of work for the world's largest electric truck

20.04.2018 | Interdisciplinary Research

Atoms may hum a tune from grand cosmic symphony

20.04.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>