Accession Number : ADA261396


Title :   The Physics of Spin Polarized Gases.


Descriptive Note : Final rept. 1 Mar 88-29 Feb 92,


Corporate Author : PRINCETON UNIV NJ DEPT OF PHYSICS


Personal Author(s) : Cates, G D


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a261396.pdf


Report Date : 02 Jan 1993


Pagination or Media Count : 21


Abstract : Over the four year period covered by this grant, we have carried out extensive research involving polarized atoms and nuclei. Using laser optical pumping, high polarizations can be produced in alkali-metal vapors. From this starting point, angular momentum can be transferred to other atoms and nuclei through several different types of spin-exchange collisions. This powerful technique enables us to study a wide variety of spin interactions and spin related phenomena. Among the systems we work with are polarized nobel gases, which display extremely long spin-relaxation times that vary from several minutes to many weeks. The use of optical pumping and spin exchange has grown enormously over the past four years.


Descriptors :   *POLARIZATION , *GASES , *SPIN STATES , MAGNETIC FIELDS , INTERACTIONS , VAPORS , PHYSICS , HELIUM , XENON , COLLISIONS , MUONS , PIONS , NUCLEAR SPINS , FREQUENCY SHIFT , OPTICAL PUMPING , ALKALI METALS , HOMOGENEITY , NUCLEI , ANGULAR MOMENTUM , EXCHANGE , ATOMIC PROPERTIES , RELAXATION , SURFACES , ELECTRON SCATTERING , ATOMS , SOLIDS


Subject Categories : Electricity and Magnetism
      Atomic and Molecular Physics and Spectroscopy
      Optics
      Nuclear Physics & Elementary Particle Physics


Distribution Statement : APPROVED FOR PUBLIC RELEASE