Luminescence of secondary uranium minerals at low temperatures (in Russian)
Journal Article
·
· At. Energ. (USSR), v. 36, no. 1, pp. 6-13
ABS>The following classes of uranium minerals and their synthetic analogues have been studied: a) phosphates and arsenates, b) silicates. c) carbonates and sulfate-carbonates, d) sulfates, e) vanadates, f) molybdates and g) hydroxides. Their spectra of luminescence (SL) at 77 and 298 deg K have been determined. At 298 deg K the minerals of classes e to g are not luminescent. In all SL, at 77 deg K. there are observed equidistant lines of symmetric vibration of uranyl, and for uranium micas often also lines of antisymmetric vibration. The role of specific forms of water participating in various uranium aqua-centers of luminescence in autunites has been investigated. Minerals manifcsting bright luminescence at 298 deg K are characterized by a vibrational constant between 800 and 840 cm/sup -1/. Its value decreases to 700 to 770 cm/sup -1 for minerals having no luminescence at 298 deg K (classes e to g) and those having only faint luminescence (classes b and d). The SL at 77 deg K assures fast and reliable identification of minerals in most cases. (tr-auth)
- Research Organization:
- Originating Research Org. not identified
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-29-029994
- OSTI ID:
- 4330574
- Journal Information:
- At. Energ. (USSR), v. 36, no. 1, pp. 6-13, Journal Name: At. Energ. (USSR), v. 36, no. 1, pp. 6-13; ISSN AENGA
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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Related Subjects
*URANIUM CARBONATES-- LUMINESCENCE
*URANIUM PHOSPHATES-- LUMINESCENCE
*URANIUM SILICATES-- LUMINESCENCE
LOW TEMPERATURE
MEDIUM TEMPERATURE
N50130* --Metals
Ceramics
& Other Materials--Ceramics & Cermets--Properties
Structure & Phase Studies
N50330 --Metals
Ceramics
& Other Materials--Plastics & Other Materials--Properties
Structure & Phase Studies
SPECTRA
URANIUM MINERALS
*URANIUM PHOSPHATES-- LUMINESCENCE
*URANIUM SILICATES-- LUMINESCENCE
LOW TEMPERATURE
MEDIUM TEMPERATURE
N50130* --Metals
Ceramics
& Other Materials--Ceramics & Cermets--Properties
Structure & Phase Studies
N50330 --Metals
Ceramics
& Other Materials--Plastics & Other Materials--Properties
Structure & Phase Studies
SPECTRA
URANIUM MINERALS