In:
MRS Proceedings, Springer Science and Business Media LLC, Vol. 506 ( 1997)
Abstract:
We have conducted a series of experiments using laser spectroscopy and analytic electron microscopy (AEM) to study the microscopic effects of radiation damage in single crystals of LuPO 4 doped with 244 Cm 3+ ions. The crystals (body-centered tetragonal, zircon-type structure) were grown in 1980 using a flux method with an initial 244 Cm(t 1/2 =18.1 y) concentration of ∼1% by weight. The dimensions of the single crystals of Cm 3+ :LuPO 4 are about 0.5×1.0×4.0 mm 3 . After 17 years, the crystals are no longer transparent. Dark brown to gray straps along the crystal c-axis are observable under an optical microscope. Macroscopic fractures are not obvious on the natural surfaces of the a- and b-planes. However, due to alpha-particle emission of 244 Cm, significant microscopic structural damage, including microscopic cavities, has accumulated in this end member of the xenotime minerals
Type of Medium:
Online Resource
ISSN:
0272-9172
,
1946-4274
DOI:
10.1557/PROC-506-921
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
1997