Sputtering yield of Cu and Ag at target temperatures close to the melting point

Bohdansky, J.; Lindner, Helmut; Hechtl, E.; Martinelli, A.; Roth, J.

doi:10.1016/s0168-583x(86)80078-7

Cited by 20 publications

(10 citation statements)

References 8 publications

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“…This has been demonstrated and interpreted in Monte-Carlo simulations for different kinds of graphite materials [273] and beryllium [274]. Physical sputtering does not depend on surface temperature [275].…”

Section: Review: Plasma-materials Interactionsmentioning

confidence: 71%

Plasma-material interactions in current tokamaks and their implications for next step fusion reactors

et al. 2001

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The major increase in discharge duration and plasma energy in a next step DT fusion reactor will give rise to important plasma-material effects that will critically influence its operation, safety and performance. Erosion will increase to a scale of several centimetres from being barely measurable at a micron scale in today's tokamaks. Tritium co-deposited with carbon will strongly affect the operation of machines with carbon plasma facing components. Controlling plasma-wall interactions is critical to achieving high performance in present day tokamaks, and this is likely to continue to be the case in the approach to practical fusion reactors. Recognition of the important consequences of these phenomena stimulated an internationally co-ordinated effort in the field of plasma-surface interactions supporting the Engineering Design Activities of the International Thermonuclear Experimental Reactor project (ITER), and significant progress has been made in better understanding these issues. The paper reviews the underlying physical processes and the existing experimental database of plasma-material interactions both in tokamaks and laboratory simulation facilities for conditions of direct relevance to next step fusion reactors. Two main topical groups of interaction are considered: (i) erosion/redeposition from plasma sputtering and disruptions, including dust and flake generation and (ii) tritium retention and removal. The use of modelling tools to interpret the experimental results and make projections for conditions expected in future devices is explained. Outstanding technical issues and specific recommendations on potential R&D avenues for their resolution are presented.

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Section: Review: Plasma-materials Interactionsmentioning

confidence: 71%

Plasma-material interactions in current tokamaks and their implications for next step fusion reactors

et al. 2001

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“…Theoretical studies [45][46][47] have predicted and experimental results [48][49][50] have confirmed an increase of the sputtering yield with increasing target temperature. Especially, for temperatures near the melting temperature or like here near the decomposition temperature of the sputtered material, a strong rise of the sputtering yield can be expected.…”

Section: Resultsmentioning

confidence: 80%

High-fluence hyperthermal ion irradiation of gallium nitride surfaces at elevated temperatures

Finzel¹,

Gerlach²,

Lorbeer³

et al. 2014

Applied Surface Science

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“…Physical sputtering of pure elements at relatively low temperature is well understood and can be simulated with computer codes. 29 However, recent investigations on metals such as lithium and gallium show an increase of the erosion rates, and a dependence of the yield on the incidence flux, for a broad range of temperatures near the melting point. For beryllium, tungsten, and carbon, experimental data and the fit for the sputtering yield at normal incidence are shown in Fig.…”

Section: Via Microscopic Erosionmentioning

confidence: 99%