Da${\Phi}$ne developments for the KLOE-2 experimental run

TL;DR

The paper discusses recent enhancements to the DAΦNE collider, including a novel collision scheme and extensive upgrades to the accelerator infrastructure, to improve luminosity and prepare for the KLOE-2 physics run.

Contribution

It presents the implementation of a new collision scheme and detailed modifications to the DAΦNE accelerator to support the upcoming KLOE-2 experiment.

Findings

Luminosity increased by nearly three times

Successful integration of the new collision scheme

Enhanced beam stability and background rejection

Abstract

Recently the peak luminosity achieved on the DA{\Phi}NE collider has been improved by almost a factor three by implementing a novel collision scheme based on large Piwinski angle and Crab-Waist. This encouraging result opened new perspectives for physics research and a new run with the KLOE-2 detector has been scheduled to start by spring 2010. The KLOE-2 installation is a complex operation requiring a careful design effort and a several months long shutdown. The high luminosity interaction region has been deeply revised in order to take into account the effect on the beam caused by the solenoidal field of the experimental detector and to ensure background rejection. The shutdown has been also used to implement several other modifications aimed at improving beam dynamics: the wiggler poles have been displaced from the magnet axis in order to cancel high order terms in the field, the feedback systems have been equipped with stronger power supplies and more efficient kickers and electrodes have been inserted inside the wiggler and the dipole vacuum chambers, in the positron ring, to avoid the e-cloud formation. A low level RF feedback has been added to the cavity control in both rings.