Lattice design of the VLHC rings

The Very Large Hadron Collider (VLHC) is comprised of 2 rings, each having a 233 km circumference. The high-field (HF) ring is characterized by 90/spl deg/ FODO cells constructed from separated-function magnets & vertical beam separation. The low-field (LF) accelerator is also constructed from 90/spl deg/ cell, but these employ combined function "transmission line" magnets and horizontally separated beams. The optics of the 2 rings are virtually identical. The HF machine operates in the synchrotron radiation dominated regime. Doublet final focusing is employed to take advantage of the flat beam optics.