MEASUREMENT AND IDENTIFICATION OF LABORATORY-PRODUCED VACUUM ULTRAVIOLET SPECTRAL LINES.
Abstract
Spectral lines of carbon, nitrogen, oxygen, and silicon have been measured and identified on spectrograms obtained from a large theta-pinch plasma device. The first spectrogram, a time-integrated exposure at grazing incidence, covered the region from 15 to 210A. Wavelengths of approximately 350 spectral lines were determined with a maximum error of 0.008A between 15A and 130A and with a maximum error of 0.015A for the remainder of the spectrogram (due to a lack of suitable standard lines). The region from 350A to 1800A was photographed in two sections: 350A to 1050A, and 950A to 1800A. Approximately 100 lines were measured and identified. The wavelengths for the grazing incidence spectrogram were calculated by means of a computer program, written in Fortran IV, which is given together with a detailed explanation of its use. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 16, 1968
- Accession Number
- AD0667584
Entities
People
- Nancy V. Roth
- R. C. Elton
Organizations
- United States Naval Research Laboratory