Ion-ion interaction and energy transfer of 4+ transuranium ions in cerium tetrafluoride

Conference · Mon Jan 01 04:00:00 EST 1990

OSTI ID:6287961

Liu, G K; Beitz, J V

Dynamics of excited 5f electron states of the transuranium ions Cm{sup 4+} and Bk{sup 4+} in CeF{sub 4} are compared. Based on time- and wavelength-resolved laser-induced fluorescence, excitation energy transfer processes have been probed. Depending on concentration and electronic energy level structure of the studied 4+ transuranium ion, the dominant energy transfer mechanisms were identified as cross relaxation, exciton-exciton annihilation, and trapping. Energy transfer rates derived from the fitting of the observed fluorescence decays to theoretical models, based on electric multipolar ion-ion interactions, are contrasted with prior studies of 4f states of 3+ lanthanide and 3d states of transition metal ions. 16 refs., 1 tab.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6287961
• Report Number(s): CONF-900802-14; ON: DE91006092
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656002 -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BERKELIUM IONS
CERIUM COMPOUNDS
CERIUM FLUORIDES
CHARGED PARTICLES
CURIUM IONS
ELECTRONIC STRUCTURE
ENERGY LEVELS
ENERGY TRANSFER
F STATES
FLUORESCENCE
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
IONS
LUMINESCENCE
RARE EARTH COMPOUNDS
RELAXATION