Polarized radioactive beam at ISAC Conference Paper uri icon

abstract

  • The polarized beam line at ISAC relies on the well known technique of collinear optical pumping to polarize the nuclear spins of a low energy (10-60 keV) radioactive beam. Alkali-metal beams are longitudinally polarized by optical pumping of a fast atomic beam, which is created by charge exchange of the incident ion beam in a Na vapour cell. At ISAC, the beam is then reionized in a He gas target and directed to the experiments. To date, 30 keV beams of 8Li and 9Li have been polarized, and 11Li and 20Na beams are scheduled immediately following this conference. The polarization of the 8Li beam, using a dual frequency, standing wave Ti:sapphire laser, is up to 80%. High polarization is achieved by matching the laser bandwidth to the energy spread in the beam. The status of the facility is reported. 2003 Elsevier Science B.V. All rights reserved.

published proceedings

  • NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

author list (cited authors)

  • Levy, C., Hatakeyama, A., Hirayama, Y., Kiefl, R. F., Baartman, R., Behr, J. A., ... Wight, G. W.

complete list of authors

  • Levy, CDP||Hatakeyama, A||Hirayama, Y||Kiefl, RF||Baartman, R||Behr, JA||Izumi, H||Melconian, D||Morris, GD||Nussbaumer, R||Olivo, M||Pearson, M||Poutissou, R||Wight, GW

publication date

  • January 1, 2003 11:11 AM