Fig. 6
From: Low-energy spin-physics experiments with polarized beams and targets at the COSY storage ring
View of the PAX installation at COSY from the interior of the ring (the beam comes from the left). 1: COSY quadrupole magnet; 2: two of the four PAX quadrupoles forming the low- β insertion by doublet focusing (DF-FD); 3: atomic beam source (ABS); 4: support system; 5: flange supporting rail system; 6: PAX target chamber housing the detector and the storage cell. The Breit-Rabi polarimeter (BRP) and the target-gas analyzer (TGA) are mounted towards the outside of the ring. (Figure taken from Ref. [12].)