Study of Cryogenic Techniques for Operating Hydrogen Masers.

Abstract

Cryogenic Techniques are applied to the Atomic Hydrogen Maser Frequency Standard to extend the storage time of the atoms and reduce the thermal noise accompanying the signal and within the resonance linewidth. One maser system is completed and installed in the cryostat. The wall coating gas handling system and the pulse and cavity measuring systems are now available for testing. A new cold dissociator has been built, tested and installed on the maser. In addition, two electronic control systems have been completed. Additional tests will be conducted. Stability at the 1x10 to the -16th power level in delta f/f for averaging time intervals of 1,000 seconds is expected at temperatures below 30K. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1982
Accession Number
ADA114933

Entities

People

  • Robert F. C. Vessot

Organizations

  • Smithsonian Astrophysical Observatory

Tags

Communities of Interest

  • Advanced Electronics
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Atomic Beam Masers
  • Cavity Resonators
  • Control Systems
  • Fabrication
  • Frequency
  • Frequency Shift
  • Frequency Standards
  • Heat Energy
  • Jet Propulsion
  • Latent Heat
  • Low Noise
  • Low Temperature
  • Magnetic Fields
  • Measurement
  • Military Research
  • Observatories
  • Resonance

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Materials Science and Engineering.
  • Thermal Physics or Thermal Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems