scholarly journals The Chemistry os Spent Nuclear Fuel From X-Ray Absorption Spectroscopy

2006 ◽  
Author(s):  
F.A. Fortner ◽  
A.J. Kropf ◽  
J.C. Cunnane
Keyword(s):  
Nuclear Fuel ◽  
Absorption Spectroscopy ◽  
Spent Nuclear Fuel ◽  
X Ray ◽  
X Ray Absorption

Characterization of selenium in UO2spent nuclear fuel by micro X-ray absorption spectroscopy and its thermodynamic stability

2015 ◽  
Vol 17 (10) ◽  
pp. 1760-1768 ◽  
Author(s):  
E. Curti ◽  
A. Puranen ◽  
D. Grolimund ◽  
D. Jädernas ◽  
D. Sheptyakov ◽  
...  
Keyword(s):  
Radioactive Waste ◽  
Fission Product ◽  
Nuclear Fuel ◽  
Absorption Spectroscopy ◽  
Thermodynamic Stability ◽  
Spent Nuclear Fuel ◽  
X Ray ◽  
Geological Repository ◽  
X Ray Absorption

The long-lived fission product79Se is tightly bound to the UO2lattice in spent nuclear fuel; it will thus be released only very slowly from a geological repository for radioactive waste.

scholarly journals Characterising legacy spent nuclear fuel pond materials using microfocus X-ray absorption spectroscopy

2016 ◽  
Vol 317 ◽  
pp. 97-107 ◽  
Author(s):  
W.R. Bower ◽  
K. Morris ◽  
J.F.W. Mosselmans ◽  
O.R. Thompson ◽  
A.W. Banford ◽  
...  
Keyword(s):  
Nuclear Fuel ◽  
Absorption Spectroscopy ◽  
Spent Nuclear Fuel ◽  
X Ray ◽  
X Ray Absorption

Trace Element Chemistry in Spent Nuclear Fuel Using X-ray Absorption Spectroscopy

2004 ◽  
Vol 10 (S02) ◽  
pp. 824-825
Author(s):  
Jeffrey A. Fortner ◽  
A. Jeremy Kropf ◽  
Robert J. Finch ◽  
James C. Cunnane
Keyword(s):  
Trace Element ◽  
Nuclear Fuel ◽  
Absorption Spectroscopy ◽  
Spent Nuclear Fuel ◽  
X Ray ◽  
Trace Element Chemistry ◽  
Element Chemistry ◽  
X Ray Absorption

Extended abstract of a paper presented at Microscopy and Microanalysis 2004 in Savannah, Georgia, USA, August 1–5, 2004.

Ceramic Immobilisation Options for Technetium

2012 ◽  
Vol 1518 ◽  
pp. 111-116 ◽  
Author(s):  
Martin C. Stennett ◽  
Daniel J. Backhouse ◽  
Colin L. Freeman ◽  
Neil C. Hyatt
Keyword(s):  
Nuclear Fuel ◽  
Spent Nuclear Fuel ◽  
High Mobility ◽  
X Ray Diffraction ◽  
Host Matrix ◽  
X Ray ◽  
Separate Fraction ◽  
X Ray Absorption ◽  
Snf Reprocessing

ABSTRACTTechnetium-99 (99Tc) is a fission product produced during the burning of nuclear fuel and is particularly hazardous due to its long half life (210000 years), relatively high content in nuclear fuel (approx. 1 kg per ton of SNF), low sorption, and high mobility in aerobic environments. During spent nuclear fuel (SNF) reprocessing Tc is released either as a separate fraction or in complexes with actinides and zirconium. Although Tc has historically been discharged into the marine environment more stringent regulations mean that the preferred long term option is to immobilise Tc in a highly stable and durable matrix. This study investigated the feasibility of incorporating of Mo (as a Tc analogue) in a crystalline host matrix, synthesis by solid state synthesis under different atmospheres. Samples have been characterised with X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray absorption spectroscopy (XAS).

X-RAY ABSORPTION SPECTROSCOPY STUDY OF Cu-BASED METHANOL CATALYSTS. 2. REDUCED STATE

1986 ◽  
Vol 47 (C8) ◽  
pp. C8-237-C8-242 ◽  
Author(s):  
B. S. CLAUSEN ◽  
B. LENGELER ◽  
B. S. RASMUSSEN ◽  
W. NIEMANN ◽  
H. TOPSØE
Keyword(s):  
Absorption Spectroscopy ◽  
Spectroscopy Study ◽  
X Ray ◽  
X Ray Absorption ◽  
Reduced State

GAS PHASE X-RAY ABSORPTION SPECTROSCOPY WITH AN ELECTRON YIELD DETECTOR

1986 ◽  
Vol 47 (C8) ◽  
pp. C8-149-C8-151
Author(s):  
F. W. LYTLE ◽  
R. B. GREEGOR ◽  
G. H. VIA ◽  
J. M. BROWN ◽  
G. MEITZNER
Keyword(s):  
Gas Phase ◽  
Absorption Spectroscopy ◽  
X Ray ◽  
Electron Yield ◽  
X Ray Absorption
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