PROPOSED BARIUM OXIDE MOLECULAR BEAM FREQUENCY STANDARD.

Abstract

A proposed molecular beam tube is described, utilizing the lowest rotational transition in barium oxide (Ba(138)O(16)) at 18.7 GHz. The choice of this special molecule is discussed. Special features of this new molecular beam tube will be the absence of sensitivity to external magnetic fields, very low microwave driving power, and small size and light weight. The frequency of the proposed beam tube is expected to be subject to only two primary causes of error which are not specifically caused by the use of barium oxide: impurities in the exciting microwave signal and phase and Doppler shifts associated with the microwave cavity. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1967
Accession Number
AD0819376

Entities

People

  • Helmut Hellwig

Organizations

  • United States Army Communications-Electronics Command

Tags

DTIC Thesaurus Topics

  • Barium
  • Barium Oxides
  • Doppler Effect
  • Frequency
  • Frequency Standards
  • Impurities
  • Magnetic Fields
  • Microwaves
  • Molecular Beams
  • Molecules
  • Oxides
  • Sensitivity
  • Standards
  • Transitions

Fields of Study

  • Physics

Readers

  • Molecular Genetics
  • Plasma Physics / Magnetohydrodynamics
  • Thin Film Deposition Science.