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Thorite uranyl

Thorite and orangite (orange thorite) have a tetragonal structure and are isostructural with zircon. Steady-state spectra under X-ray and laser (337 nm) excitations are connected with REE " ", namely Sm " ", Tb ", Dy " " and Eu ". Reabsorption lines of Nd " have been also detected (Gorobets and Rogojine 2001). Laser-induced time-resolved luminescence enables us to detect Eu " and uranyl emission centers (Eig. 4.70). [Pg.115]

Fig. 4.70. Laser-induced steady-state luminescence spectra of thorite (a) and monazite (b-d) natural and heated demonstrating uranyl, Eu ", Sm and Nd " centers. Straight line-vertical polarization, dashed Zi e-horizontal polarization... Fig. 4.70. Laser-induced steady-state luminescence spectra of thorite (a) and monazite (b-d) natural and heated demonstrating uranyl, Eu ", Sm and Nd " centers. Straight line-vertical polarization, dashed Zi e-horizontal polarization...
Fig. 4.170 (a-i) Laser-induced time-resolved luminesc ce spectra of uranyl minerals (zippeite, autunite, zeunerite, agate, orangite, thorite, monazite, xenotime)... [Pg.195]

See other pages where Thorite uranyl is mentioned: [Pg.889]    [Pg.889]    [Pg.7034]   
See also in sourсe #XX -- [ Pg.116 ]



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