Post-Irradiation Examinations of the ATF Experiments - 2020 Status

Cappia, Fabiola

doi:10.2172/1773801

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…Gamma spectrometry of the rodlets was performed using the HFEF Precision Gamma Scanner (PGS). Details about the system have been reported in other PIE reports [3,4]. The results of some of the principal gamma emitters generally used as burnup monitors are shown in Figure 8a through Figure 8g for each of the rodlets.…”

Section: Gamma Spectrometrymentioning

confidence: 99%

Non-destructive Examinations of ATF-2 Baseline Rodlets

Cappia

2020

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This report contains the results of non-destructive examinations of Accident Tolerant Fuels 2 (ATF-2) rodlets irradiated in the Advanced Test Reactor (ATR) Loop 2A. The experiment is part of the U.S. Department of Energy Nuclear Technology Research and Development (NTRD) program's Advanced Fuels Campaign (AFC). The rodlets were composed of UO 2 pellets and Zr-4 cladding. The data have been collected to provide baseline Post-irradiation Examination (PIE) data to support future testing in Transient Reactor Test (TREAT) facility and to have performance data against which the data of the ATF concepts can be compared directly. The analyses performed included: visual examinations, axial gamma scanning, neutron radiography and profilometry. All the data collected showed a performance consistent with expectations for this fuel system at low burnup.vii

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Section: Gamma Spectrometrymentioning

confidence: 99%

Non-destructive Examinations of ATF-2 Baseline Rodlets

Cappia

2020

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“…In the first campaign, the rodlet ATF-8 (or G03) containing GNF UO 2 fuel was dry irradiated to 18.3 GWd/MTU. Post-irradiation examinations (PIE) showed no significant changes in the hardness of APMT cladding due to the neutron irradiation [22,58]. Moreover, there was no degradation of the APMT cladding from the fuel cavity due to interaction with the fuel [59].…”

Section: Irradiation Campaigns and Deploymentmentioning

confidence: 99%

Improved and Innovative Accident-Tolerant Nuclear Fuel Materials Considered for Retrofitting Light Water Reactors—A Review

Rebak

2023

CMD

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Since 2011, there has been an international effort to evaluate the behavior of newer fuel rod materials for the retrofitting of existing light water reactors (LWR). These materials include concepts for the cladding of the fuel and for the fuel itself. The materials can be broadly categorized into evolutionary or improved existing materials and revolutionary or innovative materials. The purpose of the newer materials or accident-tolerant fuels (ATF) is to make the LWRs more resistant to loss-of-coolant accidents and thus increase their operation safety. The benefits and detriments of the three main concepts for the cladding are discussed. These include (i) coatings for existing zirconium alloys; (ii) monolithic iron–chromium–aluminum alloys; and (iii) composites based on silicon carbide. The use of ATF materials may help extend the life of currently operating LWRs, while also being a link to material development for future commercial reactors.

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Post-Irradiation Examinations of the ATF Experiments - 2020 Status

Cited by 2 publications

References 6 publications

Non-destructive Examinations of ATF-2 Baseline Rodlets

Non-destructive Examinations of ATF-2 Baseline Rodlets

Improved and Innovative Accident-Tolerant Nuclear Fuel Materials Considered for Retrofitting Light Water Reactors—A Review

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