SciTech Connect

Title: Spin Rotation Schemes at the ILC for Two Interaction Regions and Positron Polarization with both Helicities

Spin Rotation Schemes at the ILC for Two Interaction Regions and Positron Polarization with both Helicities This note describes a spin rotation scheme for the ILC that allows the polarization spin vector of the electron and positron beams to be tuned independently for two Interaction Regions (IR). The correct spin direction for a particular IR can be selected by directing the beam into one of two parallel spin rotation beam lines located between the damping ring and the linac. With suitable fast kicker magnets, it is possible to rapidly switch between these parallel beam lines, so that polarized beams can be delivered to two IRs on a pulse train by pulse train basis. A similar scheme can be employed in the insertion beam line to the positron damping ring, to allow rapid helicity switching for polarized positrons.
Authors:
Publication Date:
OSTI Identifier:OSTI ID: 839773
Report Number(s):SLAC-TN-05-045
TRN: US0503489
DOE Contract Number:AC02-76SF00515
Resource Type:Technical Report
Research Org:Stanford Linear Accelerator Center (SLAC), Menlo Park, CA
Sponsoring Org:SC
Country of Publication:United States
Language:English
Subject: 43 PARTICLE ACCELERATORS; DAMPING; ELECTRONS; HELICITY; KICKER MAGNETS; POLARIZATION; POLARIZED BEAMS; POSITRON BEAMS; POSITRONS; ROTATION; SPIN; VECTORS