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Soleil Shah
SOLEIL ("Sun" in French) is a synchrotron facility near Paris, France. It performed its first acceleration of electrons on May 14, 2006. The name ''SOLEIL'' is a backronym 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 (CNRS) and the French Alternative Energies and Atomic Energy Commission (CEA), two French national research agencies. It is located in Saint-Aubin in the Essonne département, a south-western suburb of Paris, near Gif-sur-Yvette and Saclay, which host other facilities for nuclear and particle physics. The facility is an associate member of the University of Paris-Saclay. SOLEIL also hostIPANEMA, the European research platform on ancient materials (archaeology, palaeontology, past environments and cultu ...
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Synchrotron Light Source
A synchrotron light source is a source of electromagnetic radiation (EM) usually produced by a storage ring, for scientific and technical purposes. First observed in synchrotrons, synchrotron light is now produced by storage rings and other specialized particle accelerators, typically accelerating electrons. Once the high-energy electron beam has been generated, it is directed into auxiliary components such as bending magnets and insertion devices (undulators or wigglers) in storage rings and free electron lasers. These supply the strong magnetic fields perpendicular to the beam which are needed to convert high energy electrons into photons. The major applications of synchrotron light are in condensed matter physics, materials science, biology and medicine. A large fraction of experiments using synchrotron light involve probing the structure of matter from the sub-nanometer level of electronic structure to the micrometer and millimeter level important in medical imaging. An ...
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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.Populations légales 2019: 91 Essonne
INSEE
Essonne was formed on 1 January 1968 when was split into smaller departments. Its prefecture is . Its
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Microsecond
A microsecond is a unit of time in the International System of Units (SI) equal to one millionth (0.000001 or 10−6 or ) of a second. Its symbol is μs, sometimes simplified to us when Unicode is not available. A microsecond is equal to 1000 nanoseconds or of a millisecond. Because the next SI prefix is 1000 times larger, measurements of 10−5 and 10−4 seconds are typically expressed as tens or hundreds of microseconds. Examples * 1 microsecond (1 μs) – cycle time for frequency (1 MHz), the inverse unit. This corresponds to radio wavelength 300 m (AM medium wave band), as can be calculated by multiplying 1 Î¼s by the speed of light (approximately ). * 1 microsecond – the length of time of a high-speed, commercial strobe light flash (see air-gap flash). * 1 microsecond – protein folding takes place on the order of microseconds. * 1.8 microseconds – the amount of time subtracted from the Earth's day as a result of the 2011 Japanese earthquake. * 2 m ...
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Electron Volt
In physics, an electronvolt (symbol eV, also written electron-volt and electron volt) is the measure of an amount of kinetic energy gained by a single electron accelerating from rest through an electric potential difference of one volt in vacuum. When used as a unit of energy, the numerical value of 1 eV in joules (symbol J) is equivalent to the numerical value of the charge of an electron in coulombs (symbol C). Under the 2019 redefinition of the SI base units, this sets 1 eV equal to the exact value Historically, the electronvolt was devised as a standard unit of measure through its usefulness in electrostatic particle accelerator sciences, because a particle with electric charge ''q'' gains an energy after passing through a voltage of ''V.'' Since ''q'' must be an integer multiple of the elementary charge ''e'' for any isolated particle, the gained energy in units of electronvolts conveniently equals that integer times the voltage. It is a common unit of energy within p ...
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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. Paris-Saclay is ranked 1st in France and 13th in the world in the Academic Ranking of World Universities (ARWU) ranking. In subject rankings, it is placed 1st in the world for Mathematics and 9th in the world for Physics, as well as being in the top 15 for Medicine and Agriculture. It is part of the Paris-Saclay project, which is a research-intensive academic campus, and is the main center for training and research within the technology cluster of Paris-Saclay. The University integrates several leading ''grandes écoles'', faculties, colleges and research centers that are part of the world's top research organizations in various fields. Paris-Saclay has achieved particular renown in mathematics. As of 2021, 11 Fields Medalists have been ...
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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) and bosons (force-carrying particles). There are three generations of fermions, but ordinary matter is made only from the first fermion generation. The first generation consists of up and down quarks which form protons and neutrons, and electrons and electron neutrinos. The three fundamental interactions known to be mediated by bosons are electromagnetism, the weak interaction, and the strong interaction. Quarks cannot exist on their own but form hadrons. Hadrons that contain an odd number of quarks are called baryons and those that contain an even number are called mesons. Two baryons, the proton and the neutron, make up most of the mass of ordinary matter. Mesons are unstable and the longest-lived last for only a few hundredths of ...
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Nuclear Physics
Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions, in addition to the study of other forms of nuclear matter. Nuclear physics should not be confused with atomic physics, which studies the atom as a whole, including its electrons. Discoveries in nuclear physics have led to applications in many fields. This includes nuclear power, nuclear weapons, nuclear medicine and magnetic resonance imaging, industrial and agricultural isotopes, ion implantation in materials engineering, and radiocarbon dating in geology and archaeology. Such applications are studied in the field of nuclear engineering. Particle physics evolved out of nuclear physics and the two fields are typically taught in close association. Nuclear astrophysics, the application of nuclear physics to astrophysics, is crucial in explaining the inner workings of stars and the origin of the chemical elements. History The history of nuclear physics as a discipl ...
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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 particle physics. Inhabitants of Saclay are known as Saclaysiens. Transport Saclay is served by no station of the Paris Métro ( RER), or suburban rail network. The closest station to Saclay is Le Guichet station on Paris RER line B. This station is located in the neighboring commune of Orsay, to the south of the town center of Saclay. See also *Communes of the Essonne department *Plateau de Saclay The Plateau de Saclay, also called Silicon Valley Européenne (in English, European Silicon Valley), is located north of Essonne and south-east of Yvelines, 20 km south of Paris. It is bounded by the valley of the Yvette ('' Vallée de Chevreu ... References External links *Official websiteCommunity blog *Mayors of Essonne Association ...
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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 spaces and woods. Place names The town of Gif-sur-Yvette is composed of sections: * in the valley: The Rougemonts, The Mérantaise, The Mairie, The Féverie, Coupières, Damiette, Courcelle, l'Abbaye, les Coudraies; * on the Moulon Plateau: The Moulon (uninhabited, aside from a research and educational institute); * on the Hurepoix Plateau: The Hacquinière, Belleville (created before the war) and Chevry (created in the 1970s, and equipped with infrastructure). Also, the commune's territory includes many forests such as the Hacquinière Wood and the d'Aigrefoin Wood. Commune's neighbors The neighboring communes of Gif-sur-Yvette are Villiers-le-Bâcle, Saint-Aubin, Saclay, Orsay, Bures-sur-Yvette, Gometz-le-Châtel, Gometz-la-Ville, and ...
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Departments Of France
In the administrative divisions of France, the department (french: département, ) is one of the three levels of government under the national level ("territorial collectivities"), between the administrative regions and the communes. Ninety-six departments are in metropolitan France, and five are overseas departments, which are also classified as overseas regions. Departments are further subdivided into 332 arrondissements, and these are divided into cantons. The last two levels of government have no autonomy; they are the basis of local organisation of police, fire departments and, sometimes, administration of elections. Each department is administered by an elected body called a departmental council ( ing. lur.. From 1800 to April 2015, these were called general councils ( ing. lur.. Each council has a president. Their main areas of responsibility include the management of a number of social and welfare allowances, of junior high school () buildings and technical staff, ...
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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 security, information technologies and health technologies. The CEA maintains a cross-disciplinary culture of engineers and researchers, building on the synergies between fundamental and technological research. CEA is headed by a board headed by the general administrator (currently François Jacq since 20 April 2018), advised by the high-commissioner for atomic energy (currently Patrick Landais). Its yearly budget amounts to €5.1 billion and its permanent staff is slightly over 20,500 persons. It owned Areva. CEA was created in 1945; since then, the successive high-commissioners have been Frédéric Joliot-Curie, Francis Perrin, Jacques Yvon, Jean Teillac, Raoul Dautry, René Pellat, Bernard Bigot, Daniel Verwaerde and François Jacq. It ...
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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 known components or substructure. The electron's mass is approximately 1/1836 that of the proton. Quantum mechanical properties of the electron include an intrinsic angular momentum ( spin) of a half-integer value, expressed in units of the reduced Planck constant, . Being fermions, no two electrons can occupy the same quantum state, in accordance with the Pauli exclusion principle. Like all elementary particles, electrons exhibit properties of both particles and waves: They can collide with other particles and can be diffracted like light. The wave properties of electrons are easier to observe with experiments than those of other particles like neutrons and protons because electrons have a lower mass and hence a longer de Broglie wavele ...
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