THE ABSORPTION SPECTRUM OF CALCIUM VAPOR: 1660 - 2028 A,
Abstract
The vacuum ultraviolet absorption spectrum of calcium vapor was observed in an attempt to discover transitions to new energy levels. Seven new levels were found between 51000 and 59000/cm, three of which are ascribed to the 3d5p, 3d6p, and 5s4p configurations, with the remaining four lines resulting from transitions to 3d4f and 3d5f configurations. The 3d5p 3P(1)o level reported by Ditchburn and Hudson at 52225/cm is now found at 51909/cm. A graph of relative cross-section for photoionization from the ground state of calcium is shown between 1660 A and the principal series limit. A shock tube was used to observe several transitions to autoionizing levels from excited states. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1965
- Accession Number
- AD0626164
Entities
People
- G. H. Newsom
Organizations
- Harvard College Observatory