Experimental Studies of Low Temperature Surface Interactions of Atomic Hydrogen Using Maser Technique.
Abstract
Measurements with an oscillating hydrogen maser of wall collision frequency shift of atomic hydrogen on surfaces of frozen CF4 at temperatures between 60 K and 30 K indicate the same wall interaction energy as for FEP-Teflon surfaces, but with 3 to 4 times less wallshift. This indicates that the surfaces of Teflon have 3 to 4 times the area of those of CF4. A substantial improvement in wall coating performance is shown to be possible with the coatings. Originator furnished keywords include: Atomic hydrogen maser oscillator; Frequency standard cryogenic cooling; Wall coatings; Wallshift.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1985
- Accession Number
- ADA150216
Entities
People
- E. M. Mattison
- R. F. C. Vessot
Organizations
- Smithsonian Astrophysical Observatory