Helium nano-bubble formation in tungsten : measurement with grazing-incidence small angle x-ray scattering /: measurement with grazing-incidence small angle x-ray scattering. (2018)

• Record Type: Book
• Further Information: Note: Matt Thompson.
• Authors: Thompson, Matt
• Contents: Intro; Supervisor's Foreword; Abstract; Preface; Parts of this thesis have been published in the following articles:; Acknowledgements; Contents; 1 Introduction; 1.1 Overview; 1.1.1 Fusion and ITER; 1.1.2 ITER Design; 1.2 Tungsten; 1.2.1 The Divertor and Material Requirements; 1.2.2 Physical Properties; 1.2.3 Thermal Shock; 1.2.4 Plasma Poisoning; 1.3 Helium-Induced Nanostructure Formation in W; 1.3.1 He Self-Trapping and Bubble Formation; 1.3.2 Nano-fuzz and Dust Formation; 1.3.3 Influence of He on H Retention 1.3.4 The Importance of Statistically Significant Empirical Validation of Computational Models1.4 Thesis Outline; References; 2 Developing a GISAXS Model to Enable Study of Nano-bubble Formation; 2.1 The Case for Grazing-Incidence Small Angle X-ray Scattering (GISAXS); 2.1.1 Limitations of TEM as a Tool to Study Nano-structures in W; 2.1.2 GISAXS Overview; 2.1.3 GISAXS Beamline Setup; 2.2 Building a GISAXS Model to Facilitate Analysis of He Nano-bubble Formation; 2.2.1 Model Overview; 2.2.2 X-ray Propagation Through Materials; 2.2.3 The GISAXS "Master Equation" 3.2.2 TEM Counting and Statistical Calculations for Exponentially Distributed Data3.2.3 Fitting More Complex Diameter Distributions; 3.2.4 GISAXS Measurement and Modelling; 3.3 Comparison Between GISAXS and TEM Results; 3.3.1 Exponentially Distributed Diameters; 3.3.2 Log-Normal and Weibull Distributions; 3.3.3 Concluding Remarks; References; 4 Effect of He Fluence on Nano-bubble Growth; 4.1 He Fluence and W Performance; 4.2 Experimental Overview; 4.2.1 Sample Preparation; 4.2.2 MAGPIE-The MAGnetised Plasma Interaction Experiment; 4.2.3 PISCES-A 4.2.4 Methods for Measuring Nano-structure Growth4.3 Results; 4.3.1 Influence of Fluence on He Nano-bubble Diameters; 4.3.2 Effect of Fluence on Nano-bubble Depths; 4.4 Summary; References; 5 Effect of Sample Temperature and Transient Heat Loading on Nano-bubble Growth; 5.1 Temperature and Nano-bubbles; 5.2 Experimental Procedure; 5.2.1 NAGDIS-II; 5.2.2 PISCES-A + DIII-D; 5.3 Results; 5.3.1 Effect of Temperature on Bubble Growth; 5.3.2 Effect of Transient Thermal Loads; 5.4 Summary; References; 6 Investigating Synergistic Effects on W Performance with Magnum-PSI; 6.1 Synergy
• Publisher Details: Cham, Switzerland : Springer
• Publication Date: 2018
• Extent: 1 online resource
• Subjects: 539.7/222; Physics; Small-angle x-ray scattering; Tungsten; Helium plasmas; SCIENCE / Physics / Quantum Theory; Helium plasmas; Small-angle x-ray scattering; Tungsten; Physics; Crystallography and Scattering Methods; Nuclear Fusion; Plasma Physics; Energy Materials; Nanoscale Science and Technology; Science -- Nuclear Physics; Technology & Engineering -- Material Science; Science -- Nanostructures; Nuclear physics; Plasma physics; Materials science; Nanotechnology; Crystallography; Nuclear fusion; Materials science; Force and energy; Science -- Crystallography; Condensed matter physics (liquid state & solid state physics); Electronic books
• Languages: English
• ISBNs: 9783319960111; 3319960113
• Related ISBNs: 9783319960104; 3319960105
• Notes: Note: Includes bibliographical references.; Note: Online resource; title from PDF title page (SpringerLink, viewed August 9, 2018).
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