Insights on fission products behaviour in nuclear severe accident conditions by X-ray absorption spectroscopy
Source abstract
Abstract
Abstract Many research programs have been carried out aiming to understand the fission products behaviour during a Nuclear Severe Accident. Most of these programs used highly radioactive irradiated nuclear fuel, which requires complex instrumentation. Moreover, the radioactive character of samples hinders an accurate chemical characterisation. In order to overcome these difficulties, SIMFUEL stand out as an alternative to perform complementary tests. A sample made of UO2 doped with 11 fission products was submitted to an annealing test up to 1973 K in reducing atmosphere. The sample was characterized before and after the annealing test using SEM-EDS and XAS at the MARS beam-line, SOLEIL Synchrotron. It was found that the overall behaviour of several fission products (such as Mo, Ba, Pd and Ru) was similar to that observed experimentally in irradiated fuels and consistent with thermodynamic estimations. The experimental approach presented in this work has allowed obtaining information on chemical phases evolution under nuclear severe accident conditions, that are yet difficult to obtain using irradiated nuclear fuel samples.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Radioactive element chemistry and processing · Nuclear reactor physics and engineering
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Dimmelmeier · 2013
2. Allen · 1988
3. Baker · 1988
4. Fission product release in the first two PHEBUS tests FPT0 and FPT110.1016/j.nucengdes.2005.03.007 ↗
5. Gasser · 1990
6. Gauntt · 1989
7. Knipe · 1986
8. Overview of experimental programs on core melt progression and fission product release behaviour10.1016/j.jnucmat.2008.07.005 ↗
9. Petti · 1989
10. Results from the power burst facility severe fuel damage test 1-4. A simulated severe fuel damage accident with irradiated fuel rods and control rods10.13182/NT91-A15812 ↗
11. Reil · 1986
12. PHEBUS FP: a severe accident research programme for current and advanced light water reactors10.1016/S0029-5493(98)00257-X ↗
13. Applicability of Phebus FP results to severe accident safety evaluations and management measures10.1016/S0029-5493(01)00400-9 ↗
14. Fission product releases in severe light water reactor accident conditions: ORNL/CEA measurements versus calculations10.13182/NT96-A35221 ↗
15. Synthesis of the VERCORS experimental programme: Separate-effect experiments on Fission Product release, in support of the PHEBUS-FP programme10.1016/j.anucene.2013.02.033 ↗
16. Kudo · 2006
17. Liu · 1994
18. Behaviour of fission products under severe PWR accident conditions. The VERCORS experimental programme—part 3: release of low-volatile fission products and actinides10.1016/j.nucengdes.2009.06.025 ↗
19. Behaviour of fission products under severe PWR accident conditions: the VERCORS experimental programme—Part 2: release and transport of fission gases and volatile fission products10.1016/j.nucengdes.2009.06.024 ↗
20. Behaviour of fission products under severe PWR accident conditions VERCORS experimental programme—part 1: general description of the programme10.1016/j.nucengdes.2009.06.028 ↗
21. Analysis of accidental sequence tests and interpretation of fission product release: interdependence of Cs, Mo and Ba release
22. Progress on ruthenium release and transport under air ingress conditions10.1016/j.nucengdes.2008.07.010 ↗
23. U. S. Nuclear Regulatory Commission · 1981
24. A separate effect study of the influence of metallic fission products on CsI radioactive release from nuclear fuel10.1016/j.jnucmat.2015.05.037 ↗
25. Fission product partitioning in aerosol release from simulated spent nuclear fuel10.1016/j.jnucmat.2015.06.002 ↗
26. Effect of redox conditions on the fission products release from irradiated oxide fuel10.1016/j.proche.2012.10.019 ↗
27. Microstructural features of SIMFUEL – simulated high-burnup U0,-based nuclear fuel10.1016/0022-3115(91)90455-G ↗
28. Ducros · 2009
29. Plutonium–uranium mixed oxide characterization by coupling micro-X-ray diffraction and absorption investigations10.1016/j.jnucmat.2010.11.096 ↗
30. Fission product release from nuclear fuel I. Physical modelling in the ASTEC code10.1016/j.anucene.2013.03.022 ↗
31. Fission product release from nuclear fuel II. Validation of ASTEC/ELSA on analytical and large scale experiments10.1016/j.anucene.2013.03.045 ↗
32. The chemical state of fission products in oxide fuels10.1016/0022-3115(85)90460-X ↗
33. The solubility of selected fission products in UO2 and (U,Pu)O210.1016/0022-3115(93)90236-R ↗
34. X-ray absorption spectroscopy investigations on radioactive matter using MARS beamline at SOLEIL synchrotron10.1515/ract-2013-2241 ↗
35. ATHENA, ARTEMIS, HEPHAESTUS: data analysis for X-ray absorption spectroscopy using IFEFFIT10.1107/S0909049505012719 ↗
36. LXXXVIII. The thermal etching of uranium, Lond. Edinb10.1080/14786440808520349 ↗
37. Constitution and thermodynamics of the Mo-Ru, Mo-Pd, Ru-Pd and Mo-Ru-Pd systems10.1016/0022-3115(89)90424-8 ↗
38. EXAFS study of the structural phase transition in the americium zirconate pyrochlore10.1016/j.jnucmat.2008.10.028 ↗