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SOLEIL ("Sun" in French) is a
synchrotron A synchrotron is a particular type of cyclic particle accelerator, descended from the cyclotron, in which the accelerating particle beam travels around a fixed closed-loop path. The magnetic field which bends the particle beam into its closed p ...
facility near
Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. S ...
,
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...
. It performed its first acceleration of
electron The electron ( or ) is a subatomic particle with a negative one elementary electric charge. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no kn ...
s on May 14, 2006. The name ''SOLEIL'' is a
backronym A backronym is an acronym formed from an already existing word by expanding its letters into the words of a phrase. Backronyms may be invented with either serious or humorous intent, or they may be a type of false etymology or folk etymology. The ...
for ''Source optimisée de lumière d’énergie intermédiaire du LURE'' (LURE optimised intermediary energy light source), LURE meaning ''Laboratoire pour l'utilisation du rayonnement électromagnétique''. The facility is run by a civil corporation held by the
French National Centre for Scientific Research The French National Centre for Scientific Research (french: link=no, Centre national de la recherche scientifique, CNRS) is the French state research organisation and is the largest fundamental science agency in Europe. In 2016, it employed 31,637 ...
(CNRS) and the
French Alternative Energies and Atomic Energy Commission The French Alternative Energies and Atomic Energy Commission or CEA ( French: Commissariat à l'énergie atomique et aux énergies alternatives), is a French public government-funded research organisation in the areas of energy, defense and securit ...
(CEA), two French national research agencies. It is located in Saint-Aubin in the
Essonne Essonne () is a department of France in the southern Île-de-France region. It is named after the river Essonne. In 2019, it had a population of 1,301,659 across 194 communes.département In the administrative divisions of France, the department (french: département, ) is one of the three levels of government under the national level ("territorial collectivity, territorial collectivities"), between the regions of France, admin ...
, a south-western suburb of Paris, near
Gif-sur-Yvette Gif-sur-Yvette (, literally ''Gif on Yvette'') is a commune in south-western Ile de France, France. It is located from the center of Paris. Geography The town is crossed by and named after the river Yvette. The total area is and is green sp ...
and
Saclay Saclay () is a commune in the southwestern suburbs of Paris, France. It is located from the centre of Paris. It had a population of 3,067 in 2006. It is best known for the large scientific facility CEA Saclay, mostly dealing with nuclear and pa ...
, which host other facilities for
nuclear Nuclear may refer to: Physics Relating to the nucleus of the atom: * Nuclear engineering *Nuclear physics *Nuclear power *Nuclear reactor *Nuclear weapon *Nuclear medicine *Radiation therapy *Nuclear warfare Mathematics *Nuclear space *Nuclear ...
and
particle physics Particle physics or high energy physics is the study of fundamental particles and forces that constitute matter and radiation. The fundamental particles in the universe are classified in the Standard Model as fermions (matter particles) an ...
. The facility is an associate member of the
University of Paris-Saclay Paris-Saclay University (french: Université Paris-Saclay) is a public research university based in Paris, France. It is one of the 13 prestigious universities that emerged from the division of the University of Paris, also known as the Sorbonne. ...
. SOLEIL also host
IPANEMA, the European research platform on ancient materials (archaeology, palaeontology, past environments and cultural heritage)
a joint CNRS / French Ministry of Culture and Communication research unit. SOLEIL covers fundamental research needs in physics, chemistry, material sciences, life sciences (notably in the crystallography of biological macromolecules), earth sciences, and atmospheric sciences. It offers the use of a wide range of spectroscopic methods from infrared to X-rays, and structural methods such as X-ray diffraction and diffusion.


Main parameters

SOLEIL contains electrons travelling with an energy of 2.75 
GeV GEV may refer to: * ''G.E.V.'' (board game), a tabletop game by Steve Jackson Games * Ashe County Airport, in North Carolina, United States * Gällivare Lapland Airport, in Sweden * Generalized extreme value distribution * Gev Sella, Israeli-Sou ...
around a 354 m circumference. It takes the electrons 1.2  μs to travel around this ring at almost the speed of light; 847,000 times per second.


Notable Experiments


References


External links

*
Official website

Official website

LURE website

Lightsources.org

Official website of IPANEMA

Official website of IPANEMA
Synchrotron radiation facilities Research institutes in France {{particle-stub