Positronium emission spectroscopy
Measurements of the intensity, velocity, and angular distribution of positronium emitted from solid samples of metals and insulators have been performed using the intense, pulsed positron beam from the 100 MeV electron linac. From these data it is possible to determine properties of both the surface interactions and volume potentials of the materials studied. Examples of these effects will be given using measurements of positronium time of flight performed with the Livermore intense positron beam. The time of flight data have been augmented by positron lifetime and angular correlation measurements performed with the beam. Measurements resulting in workfunctions, deformation potentials and surface interaction effects will be reported for both metals and insulators. 18 refs., 2 figs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6759775
- Report Number(s):
- UCRL-98759; CONF-8808122-9; ON: DE89001290
- Resource Relation:
- Conference: 8. international conference on positron annihilation, Gent, Belgium, 29 Aug 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
74 ATOMIC AND MOLECULAR PHYSICS
POSITRONIUM
EMISSION SPECTROSCOPY
ANGULAR CORRELATION
ANGULAR DISTRIBUTION
ELECTRICAL INSULATORS
ENERGY SPECTRA
LIFETIME
METALS
POSITRON BEAMS
SURFACES
TIME-OF-FLIGHT METHOD
WORK FUNCTIONS
BEAMS
CORRELATIONS
DISTRIBUTION
ELECTRICAL EQUIPMENT
ELEMENTS
EQUIPMENT
FUNCTIONS
LEPTON BEAMS
PARTICLE BEAMS
SPECTRA
SPECTROSCOPY
656003* - Condensed Matter Physics- Interactions between Beams & Condensed Matter- (1987-)
640303 - Atomic
Molecular & Chemical Physics- Positronium
Muonium
& Muonic & Mesic Atoms & Molecules