STUDY OF IONIZATION POTENTIAL OF SMALL PARTICLES.
Abstract
The ionization potential of small particles was studied. A photoionization technique was chosen for this measurement, using a Kingdon cage as an ion detector. Particles of aluminum and copper were produced in a helium gas. However, the suspension time of these particles in the gas was too short to permit work function measurement. As an alternative, an apparatus was constructed to produce a continuous supply of mercury particles by using a flowing stream of helium gas and a nucleating agent. In related experiments, monodispersed sulfur hydrosols and possibly cesium particles were produced. For particle-sizing work, a mobility and a simple light-scattering apparatus have been prepared. Theoretical work included analyses of the effect of particle size on particle work function, the cooling process of a hot vapor in a cooler gas and the formation mechanism of monodispersed sulfur hydrosols. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1965
- Accession Number
- AD0622276
Entities
People
- Keung P. Luke
- Sam Naiditch