Accession Number : ADA112173

Title :   Rotational and Spin-State Distributions: NO Thermally Desorbed from Ru(001).

Descriptive Note : Technical rept.,

Corporate Author : NATIONAL BUREAU OF STANDARDS WASHINGTON DC MOLECULAR SPECTROSCOPY DIV

Personal Author(s) : Cavanagh,Richard R ; King,David S

PDF Url : ADA112173

Report Date : 03 Mar 1982

Pagination or Media Count : 15

Abstract : Rotational state distributions have been measured for the first time in molecules thermally desorbed from a metal single crystal. Laser excited fluorescence has been used to monitor, under ultra-high vacuum conditions, the desorption of NO from Ru(001). The population distribution for those states with less than 400/cm of rotational energy (including spin) can be represented by a single Boltzmann factor, T(rot)=235 + or - 35K, significantly lower than the surface temperature at the desorption maximum, T(S) = 455 + or - 20K.

Descriptors :   *Laser induced fluorescence, *Molecular rotation, *Spin states, *Nitrogen oxides, *Single crystals, Desorption, Thermal properties, Ruthenium compounds, Molecular spectroscopy, Metal crystals, Distribution, Surface temperature, Boltzmann equation

Subject Categories : Lasers and Masers
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE