CERN is a European
organization or laboratory for research in nuclear physics. Its full name is
Organization Européenne Pour la Recherche Nucleaire. It is the largest
laboratory of particle physics in the world. It is located west of the city of
Geneva between the borders of France and Switzerland. This laboratory also has
the honor of being the birthplace of the Internet or the World Wide Web, which
was invented in 1989 by the British scientist "Tim Berners-Lee".
The agreement to create
this laboratory was signed on September 29, 1954. Initially, 12 countries were
its members, but now their number has increased to 23. It was the first joint
project of European countries.
One of the main goals of
this laboratory was to build a particle accelerator (a machine that increases
the energy of particles by moving them at very high speeds) to support
high-energy physics research and to explore the fundamental structure of the
universe. By giving the particles a very high speed, they collide with each
other at a speed close to the speed of light.
A lot of information has
been obtained with the help of many experiments with the support of different
countries of the world. Its most important building is Meyrin, which is a very
large center of computers in which there is a powerful facility for analyzing
the data obtained from the experiments Because the obtained material is also
sent to the laboratories of different countries of the world.
Around 3000 employees work
permanently in this laboratory. More than 6,500 scientists, engineers, and
particle physicists from 500 universities in 80 countries around the world work
on materials obtained from experiments at CERN.
There are approximately 4
particle accelerators in CERN's accelerator complex.
1. Two linear accelerators inject low-energy particles into a machine called a proton synchrotron. One of these accelerators is used for protons while the other is used for heavy ions. Their names are Linac 2 and Linac 3 respectively.
2. PS Booster increases the energy of the particles produced by the linear accelerator before sending them to other accelerators.
3. The proton synchrotron was built in 1959. Its energy is about 28 Giga electron volts (28 GeV). The Super Proton Synchrotron is a circular accelerator with a diameter of 2 kilometers in a tunnel. It was built in 1971.
4. Isotope Separator Online (ISOLDE) It was built in 1967 for the study of non-fissionable nuclear nuclei. Before entering the particles into the PS booster, their energy is boosted in the PS booster.
Important
parts of CERN
Smaller accelerators are
located in Meyrin, also known as the Western Region. The site was originally
built within the borders of Switzerland adjacent to the French border but has
now been greatly expanded. There are 6 entrances to Meyrin's place. Here are
the details:
- In
Switzerland, it is open to all CERN employees. This is also called the
central path.
- In
France, it is open for special periods to all CERN employees.
- In
France, it is a tunnel that is used for transporting missionaries and
other equipment and can only be used by special employees.
Many important developments in
particle physics have taken place at CERN.
1. In 1973, the discovery of a neutral current in the " Gargamel Chamber".
2. The 1976 Nobel Prize in Physics was awarded to Burton Richter and Samuel Ting for the discovery of a heavy particle called Psi.
3. In 1983, the CERN team was awarded the Nobel Prize for the discovery of W plus (W+), W minus (W-), and Z zero (Z 0). With this discovery, the proof of the "electrical weakness theory" given by "Dr. Abdul Salam" was found.
4. 1988 CERN scientist "Jacques Steinberger" was awarded the Nobel Prize for "Neutrino Beam Method" and "Elucidation of Lepton Structure by Discovery of Muon Neutrino".
5. In 1992, " Georges Charpak" was awarded the Nobel Prize for inventing the "multiwire professional chamber".
6. In 2012, a new particle named Higgs Boson was discovered which was predicted by Peter Higgs in 1964.
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