INTENSITY MEASUREMENTS FOR OPTICAL MASER APPLICATIONS,
Abstract
The experimental determination of absolute intensities of visible and near-visible light sources is considered. A photoelectric method was used, incorporating a Jarrell-Ash 3.4-meter Ebert Spectrograph and a tungsten strip filament lamp as a standard source. Calibration curves covering the spectrum from 3500 to 11,000 Angstroms were obtained relating the source brightness B(lambda) to the photomultiplier current I(lambda) for the spectrograph used. The preliminary measurements made indicate that the method is reasonably accurate in determining the relative intensities of various spectral lines of a given source, but only moderately successful in determining absolute intensities. Some methods for improving the latter are considered. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 22, 1963
- Accession Number
- AD0411782
Entities
People
- William F. Kolbe
Organizations
- University of California, Berkeley