Recent advances in polarized ion source development (invited)

Abstract

Experiments involving polarized beams and/or internal polarized targets are performed or proposed at many laboratories equipped with various type of accelerators and storage rings. Currently, the most powerful sources of polarized atoms and ions base on the atomic beam and the optical pumping methods. The present status of the polarized hydrogen source is discussed, with emphasis on the most recent improvements of the basic techniques allowing for the production of highly polarized, intense, dc or pulsed, positive or negative ion beams.

Polarized gas targets

“…The principles of ABSs have been presented by Haeberli [78]. Development work on ABSs, mostly done in connection with polarized-ion sources, has been reviewed repeatedly at conferences [34,73,74,75,185]. In modern sources, diffusion pumps have been replaced by turbomolecular pumps and cryopumps, and electromagnet sextupoles have been replaced by permanent magnet sextupoles, following the design proposed by Halbach [87] and first used by the FILTEX group [184,198].…”