U-70 (Russian: У-70) is a protonsynchrotron with a final energy of 70 GeV, built in 1967 at the Institute for High Energy Physics in Protvino (near Serpukhov, Russia). The accelerator held the world record in beam energy at the time of its construction, and it still is the highest energy accelerator in Russia. In 1970, the U-70 scientists team was awarded the Lenin Prize for the development and commissioning of the synchrotron.
The complex operates in pulsed mode. Protons are accelerated to 30 MeV by linear accelerator URAL-30. Then they are injected into the fast-cyclic booster synchrotron U-1.5 having 100-m perimeter, where protons are accelerated to 1.32 GeV. Then the protons are injected to the U-70. After this, an acceleration cycle takes place for 9 seconds, when protons are accelerated to the maximum energy of 76 GeV, and then, they are extracted from the ring to the secondary beams in the experimental halls. U-70 has perimeter about 1.5 km. Focusing structure type is FODO (strong focusing). The total weight of the magnetic system of over 20 000 t.
The prior injection of U-70 was a 100 MeV linear accelerator I-100 (until 1985).
A project for the UNK accelerator-storage complex, a proton-proton collider with an energy of 3 × 3 TeV, started in the mid 1980s. It was planned that U-70 becomes an injector for the collider ring, but the project was stopped because of the dissolution of the Soviet Union.
Accidentedit
In 1978, Anatoli Bugorski stuck his head into the synchrotron to check a piece of malfunctioning equipment, when the safety mechanism failed and he got hit in the head with a proton beam. He reportedly saw "a flash brighter than a thousand suns", although no pain was reported. Though he ultimately survived he did receive lifelong injuries to the left side of his face and experienced irregular bouts of epileptic seizures.
synchrotron, russian, proton, synchrotron, with, final, energy, built, 1967, institute, high, energy, physics, protvino, near, serpukhov, russia, accelerator, held, world, record, beam, energy, time, construction, still, highest, energy, accelerator, russia, 1. U 70 Russian U 70 is a proton synchrotron with a final energy of 70 GeV built in 1967 at the Institute for High Energy Physics in Protvino near Serpukhov Russia The accelerator held the world record in beam energy at the time of its construction and it still is the highest energy accelerator in Russia In 1970 the U 70 scientists team was awarded the Lenin Prize for the development and commissioning of the synchrotron View of the U 70 control room Contents 1 Description of the accelerator complex 1 1 Accident 2 See also 3 References 4 External linksDescription of the accelerator complex editU 70 synchrotron main parameters maximum proton energy Emax 76 GeV Injection energy Emin 1 32 GeV Perimeter P 1483 63 m Pulse repetition frequency 0 11 Hz acceleration voltage RF frequency frf 5 5 6 1 MHz HF multiplicity harmonic number 30 Betatron tune nx ny 9 75 9 85 intensity of the beam of protons per pulse Np 1 7 1013 The complex operates in pulsed mode Protons are accelerated to 30 MeV by linear accelerator URAL 30 Then they are injected into the fast cyclic booster synchrotron U 1 5 having 100 m perimeter where protons are accelerated to 1 32 GeV Then the protons are injected to the U 70 After this an acceleration cycle takes place for 9 seconds when protons are accelerated to the maximum energy of 76 GeV and then they are extracted from the ring to the secondary beams in the experimental halls U 70 has perimeter about 1 5 km Focusing structure type is FODO strong focusing The total weight of the magnetic system of over 20 000 t The prior injection of U 70 was a 100 MeV linear accelerator I 100 until 1985 A project for the UNK accelerator storage complex a proton proton collider with an energy of 3 3 TeV started in the mid 1980s It was planned that U 70 becomes an injector for the collider ring but the project was stopped because of the dissolution of the Soviet Union Accident edit In 1978 Anatoli Bugorski stuck his head into the synchrotron to check a piece of malfunctioning equipment when the safety mechanism failed and he got hit in the head with a proton beam He reportedly saw a flash brighter than a thousand suns although no pain was reported Though he ultimately survived he did receive lifelong injuries to the left side of his face and experienced irregular bouts of epileptic seizures See also editAbram Alikhanov Quadrupole magnet Strong focusingReferences editExternal links editU 70 accelerator branch in Russian Retrieved from https en wikipedia org w index php title U 70 synchrotron amp oldid 1159512599, wikipedia, wiki, book, books, library,
