RESEARCH INVESTIGATION DIRECTED TOWARD EXTENDING THE USEFUL RANGE OF THE ELECTROMAGNETIC SPECTRUM.
Abstract
The magnetic resonance technique was applied to observe the radio-frequency Zeeman transition lines of metastable autoionizing states in potassium. Field sweeps made at different frequencies ranging from 10 Mc/sec to 40 Mc/sec showed a linear increase in transition field values as expected for low-field Zeeman transitions. The gF values deduced from the transition lines indicate the existence of two metastable excited states, the 4F9/2 and 4D7/2 states. Earlier resonant self-broadening data for the (6s26p7s)3P10 state of lead was corrected for temperature variations over the surface of the cell. The differential Stark shift of the mJ=+or-3/2 and mJ=+or-1/2 sub-levels of the 72P3/2 state of cesium was measured by crossing the hfs levels in a pure electric field. The value obtained is alpha/h=1.077+or-0.043 (c/sec)/sq(kV/cm). A series of measurements of microwave absorption in mixtures of water vapor and nitrogen were made. Absorption was measured at 9260 Mc/sec at temperatures from 120C to 200C and at pressures up to 130 atmospheres. Water vapor content ranged from 0.3% to 1.5%. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 1966
- Accession Number
- AD0635373
Entities
People
- R. Novick
Organizations
- Columbia University