Physics Utilizing Spin-Polarized Gases

Abstract

We have completed a thorough study of masing action of hyperpolarized He-3 gas in inhomogeneous magnetic fields. The self interaction of the He-3 magnetization has a large effect on the maser gain. We have developed a simple new magnetic resonance method for investigating the interactions of Xe-129 spins with protons in polymers. We have shown that there are novel magnetic resonance transitions in alkali-metal vapors that have vanishing spin-exchange broadening in the limit of high spin polarization. Such transitions could be useful for miniaturized atomic clocks. We have shown that spin-axis interactions in triplet molecules are responsible for much of the spin destruction rate dense alkali-metal vapors.

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Document Details

Document Type
Technical Report
Publication Date
Aug 08, 2002
Accession Number
ADA408059

Entities

People

  • William Happer

Organizations

  • Princeton University

Tags

Communities of Interest

  • Biomedical
  • Space

DTIC Thesaurus Topics

  • Alkali Metals
  • Angular Momentum
  • Atomic Clocks
  • Clocks
  • Collisions
  • Health Care
  • Magnetic Fields
  • Magnetic Resonance
  • Metal Vapors
  • Metals
  • Momentum
  • Optical Pumping
  • Polarization
  • Resonance
  • Students
  • Transitions
  • Vapors

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Molecular Photonics/Laser Physics
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.