Very-high-luminosity insertions for the CERN intersecting storage rings

Abstract

The luminosity of the CERN ISR could be brought into the range of 0.5 to 2×10 33 cm −2 s −1 by modification in the vicinity of one interaction region. The high luminosity is obtained by a combination of near-zero crossing angle, low-beta and vanishing momentum compaction at the intersection point. The attainable performance will depend on whether or not superconducting magnetic elements are used, the maximum tolerable level of the electromagnetic beam-beam interaction and the available stacked proton current. Provision is made in the design for adjusting the crossing angle to achieve the optimal conditions.