Publications [#246058] of Haiyan Gao

Papers Published
  1. Clasie, B; Crawford, C; Dutta, D; Gao, H; Seely, J; Xu, W, Laser-driven polarized H/D sources and targets, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 536 no. 3 (2005), pp. 260-265 [doi] .

    Abstract:
    Traditionally, Atomic Beam Sources are used to produce targets of nuclear polarized hydrogen (H) or deuterium (D) for experiments using storage rings. Laser-Driven Sources (LDSs) offer a factor of 20-30 gain in the target thickness (however, with lower polarization) and may produce a higher overall figure of merit. The LDS is based on the technique of spin-exchange optical pumping where alkali vapor is polarized by absorbing circularly polarized laser photons. The H or D atoms are nuclear-polarized through spin-exchange collisions with the polarized alkali vapor and through subsequent hyperfine interactions during frequent H-H or D-D collisions. © 2004 Elsevier B.V. All rights reserved.