6533b827fe1ef96bd128638d

RESEARCH PRODUCT

Partial Laser Cooling and Saturation Spectroscopy on 9 MeV 7Li+ - Ions in a Storage Ring

R. GrieserS. SchröderG. HuberW. PetrichA. FaulstichD. HabsM. GerhardR. KleinA. WolfM. KriegA. KarafillidisR. NeumannD. Schwalm

subject

Ion beamlawChemistryLaser coolingPhysics::Atomic PhysicsAtomic physicsBetatronLaserSpectroscopyBeam (structure)Storage ringElectron coolinglaw.invention

description

Publisher Summary Laser cooling and spectroscopy in traps have reached impressive perfections. This chapter discusses laser cooling and partially Doppler-suppressed spectroscopy on stored ions at 5.4% speed of light in the test storage ring (TSR) heavy ion storage ring in Heidelberg. It discusses the requirements for saturation spectroscpy with two counterpropagating collinear laser beams. In contrast to Penning and RF-traps, the ions in a storage ring move at a high longitudinal velocity with small transverse harmonic oscillations around the central orbit with just a few times the orbiting frequency in the case of strong focussing. However, the injection of the high velocity beam introduces large betatron oscillations, which influence the laser interaction considerably. A proper tuning of the storage ring, electron cooling, and laser cooling should condense the ion beam to a long lived beam with Δp/p well below 10-6. Using a simple description of the ions motion in a storage ring, the basic properties of the observed signals can reproduced, and stringent conditions for high resolution spectroscopy testing special relativity by measuring the one way speed of light can be constructed.

yearjournalcountryeditionlanguage
1989-01-01
https://doi.org/10.1016/b978-0-12-251930-7.50086-8