Opportunity at National Institute of Standards and Technology (NIST)
Neutron Polarizers Based on Polarized 3He
Physical Measurement Laboratory, Radiation Physics Division
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|Thomas Richard Gentile
We are developing improved neutron polarizers that are based on transmission through polarized 3He gas. These polarizers allow us to conduct new classes of neutron-scattering experiments at a wide range of neutron energies, in both materials science and fundamental physics. In addition, this polarization method provides a new way to accurately measure neutron polarization. Recent improvements in optical pumping techniques for polarizing 3He nuclei make such polarizers a reality. We are using two different laser-based methods to polarize the gas: (1) spin-exchange optical pumping and (2) metastability-exchange optical pumping. These methods can also be applied to basic nuclear physics research and to polarized gas magnetic resonance imaging. Collaborations include Los Alamos National Laboratory, Indiana University, and the University of Wisconsin.
Helium; Lasers and laser processes; Neutron scattering; Polarization (charge separation);
Open to U.S. citizens
Open to Postdoctoral applicants