Accession Number:

AD0837039

Title:

BEAMS OF CONDENSED ATOMS AND MOLECULES IN A HIGH VACUUM (STRAHLEN AUS KONDENSIERTEN ATOMEN UND MOLEKELN IM HOCHVAKUUM),

Descriptive Note:

Corporate Author:

AMERICAN METEOROLOGICAL SOCIETY BOSTON MA

Personal Author(s):

• Becker, E. W.
• Bier, K.
• Henkes, W.

Report Date:

1964-07-01

Pagination or Media Count:

11.0

Abstract:

Under suitable conditions, partial condensation of particles can be achieved during the generation of molecular beams with a Laval nozzle, leading to an unusual increase in beam intensity in a high vacuum. The relative half-value width of the velocity distribution of a condensed argon beam, measured with a transit-time method, turns out to be less than 5 its upper limit is set only by the resolution of the measuring apparatus. The rise in the velocity of the condensed beam with intake pressure indicates that at least a part of the heat of condensation is converted to ordered mechanical energy in the nozzle. Author

Descriptors:

• (*LAVAL NOZZLES
• MOLECULAR BEAMS)
• ARGON
• CONDENSATION
• NITROGEN
• PRESSURE
• GAS FLOW
• COOLANTS
• HYDROGEN
• LIQUEFIED GASES
• PARTICLES
• INTENSITY
• MANOMETERS
• CONDENSATION
• THERMODYNAMICS
• WEST GERMANY
• VACUUM APPARATUS

Subject Categories:

• Nuclear Physics and Elementary Particle Physics
• Rocket Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE