Optical spectra and luminescence of REE and TRU for analytical purposes in chloride melts
- FSUE RPA - V.G. Khlopin Radium Institute - KRI, 2 Murinsky Ave., 28, St. Petersburg, 194021(Russian Federation)
- Federal State Unitary Enterprise - State Scientific Center of RF Research Institute of Atomic Reactors, Dimitrovgrad-10, Ulyanovsk region 43351 (Russian Federation)
This paper analyzes absorption spectra of molten salts containing some of the actinide and rare-earth elements (REE) and evaluated the prospects of using the individual transitions to control the composition of the spent molten salts using adsorption and luminescence spectroscopy from the standpoint of the theory of Judd-Ofelt. It is shown that the fluorescent method can be recommended only for the monitoring of the degree of purification of the molten salt from the REE in the final stage, when only trace amounts of fission products are in the molten salt. In this case, the content of REE in the molten process is much smaller than that of the used model samples and that eliminates the problem of a significant decrease in the population levels of fluorescent Eu{sup 3+} by quenching impurities. In addition, the presence of salt in the matrix of americium and curium can cause self-luminescence of Eu{sup 3+} due to alpha disintegration energy of transuranics, which also complicates the quantitative measurement of luminescence for the determination of REE.
- Research Organization:
- American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
- OSTI ID:
- 22264122
- Resource Relation:
- Conference: GLOBAL 2013: International Nuclear Fuel Cycle Conference - Nuclear Energy at a Crossroads, Salt Lake City, UT (United States), 29 Sep - 3 Oct 2013; Other Information: Country of input: France; 8 refs.; Related Information: In: Proceedings of GLOBAL 2013: International Nuclear Fuel Cycle Conference - Nuclear Energy at a Crossroads| 1633 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
f-state luminescence of lanthanide and actinide ions in solution
Glass composition and excitation wavelength dependence of the luminescence of Eu{sup 3+} doped lead borate glass