Published October 28, 1979
| Version v1
Journal article
The Hanle effect in Penning-excited ions
Description
A thermal beam of helium (23S1) metastable atoms was used to excite coherently the 2Psub(3/2) levels of Ca, Sr and Ba in a Penning ionising collision. The coherent excitation of the ions appears as a linear polarisation of the optical emission from the excited ions. The degree of linear polarisation is 5.5, 3.5 and 0.5% for Ca, Sr and Ba, respectively, with the polarisation parallel to the beam direction. Hanle effect signals from the 2Psub(2/3) level of Sr were observed and the radiative decay rate measured. (author)
Additional details
Publishing Information
- Journal Title
- J. Phys., B (London). At. Mol. Phys.
- Journal Volume
- 12
- Journal Issue
- 20
- Series
- J. Phys., B (London). At. Mol. Phys.
- Journal Page Range
- L619-L622
- ISSN
- 0022-3700
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 11500655
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- ATOM-ATOM COLLISIONS; BARIUM; BARIUM IONS; CALCIUM; CALCIUM IONS; COHERENT SCATTERING; DECAY; EXCITATION; HELIUM; IONIZATION; METASTABLE STATES; NUCLEAR ALIGNMENT; P STATES; PENNING EFFECT; POLARIZED BEAMS; S STATES; STRONTIUM; STRONTIUM IONS; VISIBLE RADIATION
- Descriptors DEC
- ALKALINE EARTH METALS; ATOM COLLISIONS; ATOMIC IONS; BEAMS; CHARGED PARTICLES; COLLISIONS; ELECTROMAGNETIC RADIATION; ELEMENTS; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EXCITED STATES; IONS; METALS; NONMETALS; RADIATIONS; RARE GASES; SCATTERING