Accession Number:

AD0411782

Title:

INTENSITY MEASUREMENTS FOR OPTICAL MASER APPLICATIONS,

Descriptive Note:

Corporate Author:

CALIFORNIA UNIV BERKELEY ELECTRONICS RESEARCH LAB

Personal Author(s):

Report Date:

1963-04-22

Pagination or Media Count:

17.0

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 Blambda to the photomultiplier current Ilambda 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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE