Uranium as an Activator-II1, 2

Slattery, Mabel K.

doi:10.1364/josa.19.000175

Cited by 28 publications

(3 citation statements)

References 3 publications

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“…Concerning other activator ions, a faint green emission (u.v. excitation) is reported for MgNaPO~-U (13). CaKPO~-T1, excited with 2537A radiation, gives an emission peak at 3150A and was studied by Clapp and Ginther in connection with its possible use in sun-tan lamps (14).…”

mentioning

confidence: 99%

Luminescence of Copper-Activated Orthophosphates of the Type ABPO[sub 4] (A = Ca, Sr, or Ba and B = Li, Na, or K)

Wanmaker

Spier

1962

J. Electrochem. Soc.

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Activation of orthophosphates of the type ABPO4 with copper gives an efficient phosphor in some cases. The brightest phosphors found are SrLiPO4‐normalCu and BaLiPO4‐normalCu , with an emission peak (with 2537Aå excitation) at 4150 and 4600Aå, respectively. The properties of orthophosphates of the type ABPO4 with two kinds of alkali earth or alkali metal ions, respectively, were also studied. X‐ray diagrams of the compounds investigated are given.

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confidence: 99%

Luminescence of Copper-Activated Orthophosphates of the Type ABPO[sub 4] (A = Ca, Sr, or Ba and B = Li, Na, or K)

Wanmaker

Spier

1962

J. Electrochem. Soc.

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“…Many other spectrographic studies of uranium in sodium fluoride have been described {12, 23, [33][34][35][36]38). Fred {9), with the same equipment employed for Figure 6 tometer.…”

Section: Sodium Fluoridementioning

confidence: 99%

Fluorophotometric Determination of Uranium

Price¹,

Ferretti²,

Schwartz³

1953

Anal. Chem.

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“…The crystal growth of uranium-activated sodium fluoride is quite feasible and the luminescence of this compound, when prepared under oxidizing conditions is known for a long time [4]. The low-temperature luminescence spectra of uranium-activated sodium fluorite (KaF: U) single crystals are rather complicated.…”

Section: Introductionmentioning

confidence: 99%

Luminescence and electrical conductivity of uranium-activated sodium fluoride crystals

Bleijenberg

Timmermans

1978

Phys. Stat. Sol. (a)

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Luminescence and electrical conductivity measurements on uranium‐activated sodium‐fluoride single crystals are reported. By varying the preparation procedure of the crystals the emission spectra of four different uranium centres can be isolated. The electrical conductivity of the crystals increases with increasing uranium content and appears to depend on the growth conditions. In crystals that have been grown in a nitrogen atmosphere the extrinsic conductivity is governed by sodium‐ion vacancies, while in the air‐grown crystals fluoride‐ion vacancies constitute the conducting species in the extrinsic region. From the results a model is deduced for the configurations of the uranium centres. The centres contain hexavalent uranium and can be represented by (UO6)', (UO5F)x, and (UO4F2).. At low temperatures ion vacancies are associated with effectively charged uranate centres.

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Uranium as an Activator-II1, 2

Cited by 28 publications

References 3 publications

Luminescence of Copper-Activated Orthophosphates of the Type ABPO[sub 4] (A = Ca, Sr, or Ba and B = Li, Na, or K)

Luminescence of Copper-Activated Orthophosphates of the Type ABPO[sub 4] (A = Ca, Sr, or Ba and B = Li, Na, or K)

Fluorophotometric Determination of Uranium

Luminescence and electrical conductivity of uranium-activated sodium fluoride crystals

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