Title: Quadrupole frequency measurements using defect associated electric field gradients in cubic host materials
Authors: Ternier, S
Neyens, Gerda
Vyvey, Katrien
Odeurs, Joseph
Coulier, Nico
Michiels, S
Coussement, Romain
Balabanski, DL
Kulkarni, R #
Issue Date: Apr-1998
Publisher: Elsevier science bv
Series Title: Nuclear Instruments and Methods in Physics Research. Section B, Beam interactions with materials and atoms vol:140 issue:1-2 pages:235-242
Abstract: Level Mixing Spectroscopy (LEMS) can be used to determine nuclear quadrupole moments. In this paper it is shown how LEMS can be applied to nuclei implanted in a cubic lattice. In this case the quadrupole interaction is due to electric field gradients produced by defects. The method has been illustrated by measuring quadrupole moments of Po202-204 isomers produced in Pt-nat(C-12, 4n) and Pt-nat(C-13, 5n) reactions, the (natural) Platinum serving as a host material. The result could be analysed with the assumption of two different defect associated sites, making up for about 80% of the total site population. The experimental ratio Q(Po-202,8(+))/Q(Po-204,8(+)) is in agreement with the systematics in the lead region. LEMS measurements in cubic crystals provide another nuclear method for the study of nuclear quantities or solid state parameters. (C) 1998 Elsevier Science B.V.
ISSN: 0168-583X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
Development cooperation
Leuven Statistics Research Centre (LStat)
# (joint) last author

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