Achievements

Phase Locking the Spin Precession in a Storage Ring

The successful use of feedback from a spin polarization measurement to the revolution frequency of a 0.97GeV/c bunched and polarized deuteron beam in the Cooler Synchrotron (COSY) storage ring has been realized in order to control both the precession rate (≈ 120kHz) and the phase of the horizontal polarization component.

Spin tune mapping as a novel tool to probe the spin dynamics in storage rings

We developed a new method based on the spin tune response of a machine to artificially applied longitudinal magnetic fields. This novel technique, called spin tune mapping, emerges as a very powerful tool to probe the spin dynamics in storage rings.

How to Reach a Thousand-Second in-Plane Polarization Lifetime with 0.97 GeV/c Deuterons in a Storage Ring

A deuteron beam polarization lifetime near 1000 seconds in the horizontal plane of the magnetic storage ring COSY has been acchieved. This record lifetime is required for a storage ring search for an intrinsic electric dipole moment on the deuteron at a statistical sensitivity level approaching 10-29 e∙cm.

New Method for a Continuous Determination of the Spin Tune in Storage Rings and Implications for Precision Experiments

A new method to determine the spin tune was established and tested as a precision tool for accelerator physics: controlling the spin motion of particles to high precision is mandatory, in particular, for the measurement of electric dipole moments of charged particles in a storage ring.

Last Modified: 19.05.2022