High-temperature, Knudsen cell-mass spectroscopic studies on lanthanum oxide/uranium dioxide solid solutions

Sunder, S.; McEachern, Rod; Leblanc, J.

doi:10.1016/s0022-3115(01)00454-8

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…The vaporisation of the first group is detectable above 2000 K together with the vaporisation of the fuel matrix, the measured vaporisation enthalpies ranging between 501 and 548 kJ mol À1 , close to the enthalpy of vaporisation of Ln 2 O 3 [6]; the measured vapour pressures above irradiated fuel show an activity equal to their concentration in the fuel [7,8]. Atoms of the second group (Mo, Pd, Rh, Ru, Tc) precipitate in form of metallic particles mainly located in voids, bubbles, or at the grain boundary [9][10][11].…”

Section: Introductionmentioning

confidence: 81%

Volatile fission product behaviour during thermal annealing of irradiated UO2 fuel oxidised up to U3O8

Hiernaut

Wiss

Dimitrios

et al. 2008

Journal of Nuclear Materials

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Section: Introductionmentioning

confidence: 81%

Volatile fission product behaviour during thermal annealing of irradiated UO2 fuel oxidised up to U3O8

Hiernaut

Wiss

Dimitrios

et al. 2008

Journal of Nuclear Materials

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“…[13] The European Commission Joint Research Centre ITU has performed a variety of experiments on irradiated fuel samples using a modified Knudsen cell apparatus. [14] Readiness Rating in Relevant Environment…”

Section: Nuclear Applicationsmentioning

confidence: 99%

Advanced Post-Irradiation Examination Capability T

Listed¹

2013

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This report describes the current status of the Advanced Post-Irradiation Examination Capability (APIEC) Project and the initial complement of post-irradiation examination (PIE) instruments proposed to advance the state-ofthe-art for nuclear characterization. To facilitate this advancement, the project performed a technical readiness assessment for the instruments that are most likely to be used for the APIEC Project. This assessment assigned technology readiness levels (TRLs) for the current-state instrument and system readiness.Technology maturation plans (TMPs) were developed for each of the PIE instruments in the initial complement to detail the next steps required to test the instruments and reduce the risk of installing immature technologies. An additional TMP was developed for the sample preparation equipment needed to prepare nuclear fuels and material specimens for advanced PIE. Technology development roadmaps were then generated to summarize the path forward to successful operation in a facility. The technology development roadmaps, current TRLs, and a brief description of each capability and instrument are contained herein. The nine TMPs are included as attachments to this report.This assessment included 20 candidate instruments. These instruments ranged in technology readiness from instruments that have been successfully tested as integrated components to instruments that have been demonstrated as a system in their final configuration. Many of these instruments are commercially available and have been demonstrated in industrial applications. However, some have not been demonstrated for personnel and equipment protection in the high-radiation environment anticipated for the APIEC Project. Hence, these instruments need to be demonstrated in dry inert atmosphere, radiation service (e.g., shielding or relocation of the detectors and printed circuit boards), remote sample handling, and, in some cases, remote control and maintenance of the instrument.This report describes, qualitatively, the challenges facing each instrument and the path forward to overcome those challenges. As the initial complement of instruments anticipated for near-term APIEC Project application is finalized, more details will be added to the test plans to further quantify the path forward. Updates and additional details also will be added as the instruments advance through successive TRLs. INTRODUCTIONThis document describes the current status of the instruments that will be used to advance the state-of-the-art for nuclear characterization in the Advanced Post-Irradiation Examination Capability (APIEC) Project. To facilitate this advancement, the APIEC Project performed a technical readiness assessment (TRA) for the candidate instruments likely to be used in an advanced post-irradiation examination (PIE) facility. This assessment resulted in assignment of technology readiness levels (TRLs) for the current state of each instrument. Technology development roadmaps (TDRMs) and technology maturation plans (TMPs) were developed for the i...

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“…In this paper we will present the partial vapour pressures of the transuranium actinides and the lanthanides in this sample and the stoichiometry evolution of the UO 2 matrix during the annealing process. The activities of the different compounds have been determined by comparison of the measured pressure data with assessed values [2]or with new measurements on pure substances [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic study of actinides and lanthanides during total vaporisation of a very high burn-up UO2 fuel

Hiernaut

Gotcu-Freis

Colle

et al. 2008

Journal of Nuclear Materials

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High-temperature, Knudsen cell-mass spectroscopic studies on lanthanum oxide/uranium dioxide solid solutions

Cited by 5 publications

References 18 publications

Volatile fission product behaviour during thermal annealing of irradiated UO2 fuel oxidised up to U3O8

Volatile fission product behaviour during thermal annealing of irradiated UO2 fuel oxidised up to U3O8

Advanced Post-Irradiation Examination Capability T

Thermodynamic study of actinides and lanthanides during total vaporisation of a very high burn-up UO2 fuel

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