Design Concept for a 100 GeV E+-E- Storage Ring

A conceptual design of a 100 GeV e
⁺
-e
^-
storage ring (LEP) being studied at CERN and some of the problems encountered are presented. The 20 GeV fastcycling injector synchrotron is studied at the Rutherford Laboratory.
¹
To obtain a luminosity L = 1 × 10
³²
cm
^-2
s
^-1
at 100 GeV, the product of bending radius ρ and the RF power P
_B
delivered to both beams must be P
_B
ρ = 136 GWm, assuming optimum coupling, a maximum permissible beam-beam tune shift ΔQ = 0.06, and a vertical amplitude function ß
_y
* = 0.01 m at the crossings. The bending radius ρ = 6.1 km was obtained by cost optimisation.
²