Accession Number:

AD0752717

Title:

Experimenteller Nachweis Stationaerer Inversionen Atomarer Niveaus in einem Expandierenden Wasserstoff-Plasma (Experimental Evidence for Stationary Population Inversions of Atomic Levels in an Expanding Hydrogen Plasma),

Descriptive Note:

Corporate Author:

DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUER LUFT- UND RAUMFAHRT E V STUTTGART-FLUGHAFEN (WEST GERMANY)

Personal Author(s):

• Hoffmann,P.
• Bohn,W. L.

Report Date:

1972-01-27

Pagination or Media Count:

4.0

Abstract:

Detailed calculations of population densities of excited levels in a decaying hydrogen plasma flow predict population inversions within a definite range of plasma parameters. This has been verified experimentally in a rapid expanding plasma where the characteristic time of decay was much shorter than the relaxation time of the ground state. Population inversions have been found for the first transitions of the Paschen and Brackett series. Author

Descriptors:

• *PLASMAS(PHYSICS)
• *ELECTRON TRANSITIONS
• ATOMIC ENERGY LEVELS
• GROUND STATE
• EXCITATION
• HYDROGEN
• WEST GERMANY

Subject Categories:

• Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE