A gas cell for stopping, storing and polarizing radioactive particles

A radioactive beam of Na-20 is stopped in a gas cell filled with Ne gas. The stopped particles are polarized by optical pumping. The degree of polarization that can be achieved is studied. A maximum polarization of 50% was found. The dynamic processes in the cell are described with a phenomenological model. (C) 2016 Elsevier B.V. All rights reserved.