|Author||Rose, M. E. ♦ Carovillano, R. L.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||PHYSICS ♦ ANGULAR DISTRIBUTION ♦ ANGULAR MOMENTUM ♦ ATOMIC MODELS ♦ ATOMS ♦ CONFIGURATION ♦ ELECTRIC FIELDS ♦ ELECTRONS ♦ FINE STRUCTURE ♦ FLUORESCENCE ♦ GEOMETRY ♦ HYDROGEN ♦ MAGNETIC FIELDS ♦ MEASURED VALUES ♦ MOTION ♦ POLARIZATION ♦ QUANTITATIVE ANALYSIS ♦ RADIATIONS ♦ RESONANCE ♦ SCATTERING ♦ SHAPE ♦ SPECTRA ♦ SPECTROSCOPY ♦ SPIN ♦ TRANSIENTS ♦ USES ♦ VECTORS|
|Abstract||The crossed-level method of atomic spectroscopy is discussed. The angular distribution formula for both incoherent and cohereat resonance scattering is derived. The form of this distribution function explicity displays the geometric factors depending on radiation propngation vectors. With the application to hydrongen in mind, the distribution function is expressed explicitly for single electron transitions with external fields possessing axial symmetry. The properties of the distribution function are discussed with emphasis on the case of unpolarized radiation. For the case of hydrogen there are two applications of major interest. The first condistributions the possibility of a precision measurecanent of the 2p cerns the possiblitly of precision measurement of the 2p fine of unpolar structure splitting and, hence, a determination of the fine two a structure constant. Explicit results for the shape and other properties of the resonance line with a uniform mnagnetic field are obtained The other application is concerned with the possibility of measuring the 2s-2p Lamb splitting. This requires an electric field parallel to the magnetic field. Unfortunately the level crossings sensitive to the Lamb splitting cannot radiate sufficiently rapialy, while those that do radiate appreciably occur at field strengths which are tremely insensitive to the Lamb splitting. (auth)|
|Learning Resource Type||Article|
|Publisher Department||Oak Ridge National Lab., Tenn.|
|Organization||Oak Ridge National Lab., Tenn.|
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