The Universal Linear Accelerator (UNILAC) is a

heavy ion High-energy nuclear physics studies the behavior of nuclear matter in energy regimes typical of high-energy physics. The primary focus of this field is the study of heavy-ion collisions, as compared to lighter atoms in other particle accelerator ...

linac A linear particle accelerator (often shortened to linac) is a type of particle accelerator that accelerates charged subatomic particles or ions to a high speed by subjecting them to a series of oscillating electric potentials along a linear bea ...

based at the

GSI Helmholtz Centre for Heavy Ion Research The GSI Helmholtz Centre for Heavy Ion Research () is a federally and state co-funded heavy ion () research center in Darmstadt, Germany. It was founded in 1969 as the Society for Heavy Ion Research (), abbreviated GSI, to conduct research on a ...

near

Darmstadt Darmstadt () is a city in the States of Germany, state of Hesse in Germany, located in the southern part of the Frankfurt Rhine Main Area, Rhine-Main-Area (Frankfurt Metropolitan Region). Darmstadt has around 160,000 inhabitants, making it the ...

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

. It can provide beams of accelerated

ion An ion () is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by convent ...

s of elements from

hydrogen Hydrogen is a chemical element; it has chemical symbol, symbol H and atomic number 1. It is the lightest and abundance of the chemical elements, most abundant chemical element in the universe, constituting about 75% of all baryon, normal matter ...

uranium Uranium is a chemical element; it has chemical symbol, symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Ura ...

with energies of 2 to 11.4

MeV 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 through an electric potential difference of one volt in vacuum. When us ...

/ u. The main branch consists of two ion source terminals followed by a Radio Frequency Quadrupole and by an Interdigital linac IH linac accelerator resonating at 36 MHz up to the energy of 1.4 MeV/u. The main part then is operated by a classical

of the Alvarez type which resonates at 108 MHz. Final energy adjustment can be performed in the last section consisting of a series of single-gap resonators. This solution was proposed for maximum flexibility in beam energy. The UNILAC is used both to send beams of heavy ions to experiments and to load the SIS18 Heavy-Ion Synchrotron (Schwer-Ionen-Synchrotron) with high-energy ions. Collisions between heavy-ion beams and stationary targets can be made to generate superheavy transactinide elements. Experiments using beams from UNILAC in the past 20 years have produced elements

107 107 may refer to: *107 (number), the number *AD 107, a year in the 2nd century AD *107 BC, a year in the 2nd century BC *107 (New Jersey bus) *107 Camilla, a main-belt asteroid *Peugeot 107, a city car See also

*10/7 (disambiguation) *Bohrium, ...

to 112.

References

Darmstadt Particle accelerators {{Accelerator-stub