Laser Driven Polarized H/D sources and targets
نویسندگان
چکیده
Traditionally, Atomic Beam Sources (ABSs) are used to produce targets of nuclear polarized Hydrogen (H) or Deuterium (D) for experiments using storage rings. Laser-Driven Sources (LDSs) o er a factor of 20-30 gain in the target thickness (however, with lower polarization) and may produce a higher overall gure 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 hyper ne interactions during frequent H-H or D-D collisions.
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