606
K. Hübner et al.
Fig. 10.6 The RHIC accelerator complex with the elements required for the acceleration and
collision of polarized protons highlighted
Fig. 10.7 View down the magnet gap of the warm, iron-based helical partial Siberian snake of the
AGS
The full Siberian snakes [78], two for each ring, and the spin rotators, four
for each collider experiment, in RHIC each consist of four 2.4 m long, 4 T
superconducting helical dipole magnet modules each having a full 360 ◦ helical
twist. Figure 10.8 shows the orbit and spin trajectory through a RHIC snake. The two
Siberian snakes are installed in the location of the missing dipole of the dispersion
suppression section and the orbit angle is exactly 180 ◦ in between the two snakes.
The spin rotation axis of the two snakes is pointing 45 ◦ in and out, respectively,
relative to the direction of the beam resulting in the required 90 ◦ angle between the
K. Hübner et al.
Fig. 10.6 The RHIC accelerator complex with the elements required for the acceleration and
collision of polarized protons highlighted
Fig. 10.7 View down the magnet gap of the warm, iron-based helical partial Siberian snake of the
AGS
The full Siberian snakes [78], two for each ring, and the spin rotators, four
for each collider experiment, in RHIC each consist of four 2.4 m long, 4 T
superconducting helical dipole magnet modules each having a full 360 ◦ helical
twist. Figure 10.8 shows the orbit and spin trajectory through a RHIC snake. The two
Siberian snakes are installed in the location of the missing dipole of the dispersion
suppression section and the orbit angle is exactly 180 ◦ in between the two snakes.
The spin rotation axis of the two snakes is pointing 45 ◦ in and out, respectively,
relative to the direction of the beam resulting in the required 90 ◦ angle between the