MEASUREMENT OF THE OSCILLATOR STRENGTH OF THE NEUTRAL HELIUM RESONANCE LINE.
Abstract
The f-value of the lambda 584 HeI line was determined from the saturated emission profile using an electromagnetic T-tube filled with a hydrogen-helium mixture as light source. Since the central saturation levels of this line and the higher series members could be connected by a smooth curve which (with a small correction for detector response) agreed with the relative blackbody intensity, these levels were identified with the blackbody corresponding to the measured plasma temperature, and this furnished the required calibration standard. The resulting value f = 0.27 = 0.07 is consistent with most recent theoretical values. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 24, 1964
- Accession Number
- AD0609998
Entities
People
- Reimer P. H. Lincke
Organizations
- University of Maryland