||Target Absorber Neutral: absorber for the neutral particles leaving the IP. It is located just in front of the D1 separation / recombination dipole magnet on the side facing the IP.
||Target Absorber Secondaries: absorber for particles leaving the IP at large angles. It is located just in front of the Q1 triplet quadrupole magnet on the side facing the IP.
||Number of particle trajectory oscillations during one revolution in the storage ring (transverse and longitudinal).
||Assembly of three quadrupole magnets used for a reduction of the optical β-functions at the IPs. The LHC triplet assembly consists in fact of 4 quadrupole magnets but the central two quadrupole magnets form one functional entity. The LHC has triplet assemblies in IR1, IR2, IR5 and IR8.