This title appears in the Scientific Report :
2011
Please use the identifier:
http://dx.doi.org/10.1016/j.jnucmat.2011.01.110 in citations.
Tungsten as material for plasma-facing components in fusion devices
Tungsten as material for plasma-facing components in fusion devices
The use of tungsten (W) as material for plasma-facing components (PFM) in fusion devices is reviewed with respect to its plasma and material compatibility under burning plasmas conditions. Fusion-relevant plasma operation with W walls is characterised by the need to operate at high edge densities, n...
Saved in:
Personal Name(s): | Philipps, V. |
---|---|
Contributing Institute: |
Plasmaphysik; IEK-4 |
Published in: | Journal of nuclear materials, 415 (2011) S. S2 - S9 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2011
|
Physical Description: |
S2 - S9 |
DOI: |
10.1016/j.jnucmat.2011.01.110 |
Document Type: |
Journal Article |
Research Program: |
Fusion |
Series Title: |
Journal of Nuclear Materials
415 |
Subject (ZB): | |
Publikationsportal JuSER |
The use of tungsten (W) as material for plasma-facing components (PFM) in fusion devices is reviewed with respect to its plasma and material compatibility under burning plasmas conditions. Fusion-relevant plasma operation with W walls is characterised by the need to operate at high edge densities, no or moderate density peaking, and external tools to control the W transport in the plasma core. Several surface and material issues related with the high particle fluencies in fusion devices needs further R&D but are not considered from present view to seriously limit the use of W as PFM. Reliable control of Edge Localised Modes (ELMS) and disruptions is indispensable for the application of W. both to control the W transport in the edge and to avoid target melting in uncontrolled events which can seriously detonate the operational performance of the device. For DEMO and reactors, the behaviour of W under large neutron fluencies has to be further clarified and measures must be developed to mitigate degradation of material properties by neutron damage. (C) 2011 Elsevier B.V. All rights reserved. |