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The Antiproton Separator of the FAIR Project

The ion-optical characteristics of the separator should meet the requirements of the antiproton beam, the parameters of which are given in Table 1. The magnetic bending power is 13 Tm; the transverse acceptance is 240 mm mrad; the momentum acceptance is 6 %. These parameters require magnets with large aperture, especially in the horizontal plane (up to 400 mm). The ion optics of the antiproton separator has been calculated using CRtype bending, quadrupole and sextupole magnets [1]. The quadrupole and sexupole magnets have normal conduction coils. For the CR-type bending magnet a superferric H-type magnet design with a large useful aperture is foreseen [1]. The same type is considered to be used for the separator.