Measurement and Simulation of Vacancy Formation in 2-MeV Self-irradiated Pure Fe

Auguste, R.; Liedke, Maciej Oskar; Selim, F. A.; Uberuaga, Blas P.; Wagner, A.; Hosemann, Peter

doi:10.1007/s11837-020-04116-5

Cited by 2 publications

(3 citation statements)

References 29 publications

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“…Current efforts directed at developing pulsed positron beams derived from radioactive isotopes (see Figure 14) will usher in a new era in positron characterization by enabling in situ measurements of materials during ion irradiation. 350 Figure 14 shows the incorporation of a bunching system to a magnetically transported beam to convert the DC slow e + to pulses that are hundreds of picoseconds in width, making them relevant for PALS measurements in a wide range of ion-irradiated materials. Then DBS and PALS can be done simultaneously, as illustrated in Figure 14.…”

Section: Intrinsic Point Defectsmentioning

confidence: 99%

“…While these user facility adaptations of positron characterization provide the irradiation materials science community with tremendous new capability, multiple measurement methodologies cannot be easily accommodated. Current efforts directed at developing pulsed positron beams derived from radioactive isotopes (see Figure ) will usher in a new era in positron characterization by enabling in situ measurements of materials during ion irradiation Figure shows the incorporation of a bunching system to a magnetically transported beam to convert the DC slow e + to pulses that are hundreds of picoseconds in width, making them relevant for PALS measurements in a wide range of ion-irradiated materials.…”

Section: Crystalline Defect Generation Evolution and Characterizationmentioning

confidence: 99%

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Thermal Energy Transport in Oxide Nuclear Fuel

et al. 2021

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To efficiently capture the energy of the nuclear bond, advanced nuclear reactor concepts seek solid fuels that must withstand unprecedented temperature and radiation extremes. In these advanced fuels, thermal energy transport under irradiation is directly related to reactor performance as well as reactor safety. The science of thermal transport in nuclear fuel is a grand challenge due to both computational and experimental complexities. Here, we provide a comprehensive review of thermal transport research on two actinide oxides: one currently in use in commercial nuclear reactors, uranium dioxide (UO2), and one advanced fuel candidate material, thorium dioxide (ThO2). In both materials, 5Concluding Remarks .

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Section: Intrinsic Point Defectsmentioning

confidence: 99%

Section: Crystalline Defect Generation Evolution and Characterizationmentioning

confidence: 99%

Thermal Energy Transport in Oxide Nuclear Fuel

et al. 2021

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“…Capabilities for in situ positron doppler broadening for investigating defect evolution of bulk materials under irradiation have been developed. [66][67][68][69][70][71][72] PAS offers unique sensitivity to vacancy-type defect formations on scales as small as monovacancies. In one example, Tsuchida et al used in situ PAS to investigate the enhanced radiation tolerance of nanocrystalline Ni simultaneously implanted with light ions.…”

Section: Electron and Positron Beam Characterization Techniquesmentioning

confidence: 99%

The In Situ Ion Irradiation Toolbox: Time-Resolved Structure and Property Measurements

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Dennett

Madden

et al. 2021

JOM

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The dynamic interactions of ions with matter drive a host of complex evolution mechanisms, requiring monitoring on short spatial and temporal scales to gain a full picture of a material response. Understanding the evolution of materials under ion irradiation and displacement damage is vital for many fields, including semiconductor processing, nuclear reactors, and space systems. Despite materials in service having a dynamic response to radiation damage, typical characterization is performed post-irradiation, washing out all information from transient processes. Characterizing active processes in situ during irradiation allows the mechanisms at play during the dynamic ion-material interaction process to be deciphered. In this review, we examine the in situ characterization techniques utilized for examining material structure, composition, and property evolution under ion irradiation. Covering analyses of microstructure, surface composition, and material properties, this work offers a perspective on the recent advances in methods for in situ monitoring of materials under ion irradiation, including a future outlook examining the role of complementary and combined characterization techniques in understanding dynamic materials evolution.

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Measurement and Simulation of Vacancy Formation in 2-MeV Self-irradiated Pure Fe

Cited by 2 publications

References 29 publications

Thermal Energy Transport in Oxide Nuclear Fuel

Thermal Energy Transport in Oxide Nuclear Fuel

The In Situ Ion Irradiation Toolbox: Time-Resolved Structure and Property Measurements

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