Cross Sections for Photoionization of the Doublet -6P Fine Structure Levels of Cesium.
Abstract
The cross sections for photoionization of excited cesium from the 6P-2 sub (3/2) and 6P-2 sub (1/2)-fine structure levels were measured using a triple crossed-beam apparatus. Two photon beams, one for excitation and one for ionization, impinge upon an atomic beam and produce ions at the point of intersection. The relative cross section was determined from a knowledge of the ion count rate and the relative photon flux of the ionization light. The results are normalized to available theoretical calculations and compared with recombination measurements in cesium plasmas. The present cross sections are found to decrease the decreasing wavelength more rapidly than predicted by theory, but are in excellent agreement with previous experimental studies of the combined 6P-2 stated.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- 1974
- Bibcode:
- 1974PhDT........14J
- Keywords:
-
- Physics: Atomic;
- Cesium;
- Ionization Cross Sections;
- Photoionization;
- Cesium Plasma;
- Numerical Analysis;
- Photon Beams;
- Recombination Reactions;
- Solid-State Physics