Accession Number:

AD0609998

Title:

MEASUREMENT OF THE OSCILLATOR STRENGTH OF THE NEUTRAL HELIUM RESONANCE LINE.

Descriptive Note:

Scientific rept. no. 3 (Final) Aug 59-Oct 64,

Corporate Author:

MARYLAND UNIV COLLEGE PARK

Personal Author(s):

Report Date:

1964-11-24

Pagination or Media Count:

209.0

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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE