RESEARCH INVESTIGATION DIRECTED TOWARD EXTENDING THE USEFUL RANGE OF THE ELECTROMAGNETIC SPECTRUM.
Abstract
The spectral distribution of the two-photon emission from the metastable 2(2)S1/2 state of singly ionized helium has been verified. An rf resonance experiment has been initiated to make a high precision determination of the fine-structure intervals and the quadrupole coupling constant of the (1s2s2p)(4)P(0) metastable autoionizing state of lithium. An experimental method which makes use of the optical pumping of alkali vapors is presently being employed in a systematic study of the quenching of excited alkali atoms. Intensity modulation of light at the 6.835 GHz hyperfine frequency of RB(87) has been observed for the first time. A magnetic rotation spectrum of molecular cesium has been observed for the first time. A general theory has been developed to account for the echo behavior due to the interactions between the echo atoms and the magnetic nuclei of neighboring atoms. A rocket-borne x-ray polarimeter, which makes use of the polarization dependence of Thomson scattering, was successfully flown on July 26, 1968.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 31, 1968
- Accession Number
- AD0682761
Entities
People
- S. R. Hartman
Organizations
- Columbia University