The first bending magnet permits to transport the beam of charged particles to the Syncrophasotron (upper channel) or to the Nuclotron.

The Nuclotron injection system includes: 2 bending magnets, 12 quadrupole lenses, 6 two-dimensional correctors, superconducting septum-magnet, high voltage inflector plates, diagnostics and other special equipment.

The 2 m diameter and 20 m long copper resonator is launched by 150 MHz. The energy of the accelerated protons is 20 MeV, nuclei (Z / A > 0.3) - 5 MeV/u.

The linac resonator has 58 drift tubes with quadrupole lenses into each one. The accuracy of the drift tubes instalation is about 100 mkm.

1 - vacuum shell
2 - heat shield
3 - suply header
4 - return header
5 - dipole magnet
6 - quadrupole magnet
7 - subcooler
8 - separator
9 - refrigerator
10 - gas bag
11 - storage vessel
12, 14, 15, 17 - compressors
13, 16 - purifiers

The magnets are assembled in the cryostat equipped with a copper shield cooled by liquid nitrogen. Supply and return helium headers are placed inside the cryostat, too. Two of three refrigerators are connected to the half-rings and can operate independently.

The magnets are refrigerated by two-phase helium flow. This flow goes through the hollow winding and tubes for cooling the iron joke. There is only liqued helium at the inlet of all magnets. The value of the mass vapor content at the outlet is 90%. The heat transfer from the superconducting winding is equal to area 1, from iron - to area 2.