Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
ELM divertor peak energy fluence scaling to ITER with data from JET, MAST and ASDEX upgrade
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
Show others and affiliations
Number of Authors: 11122017 (English)In: Nuclear Materials and Energy, E-ISSN 2352-1791, Vol. 12, p. 84-90Article in journal (Refereed) Published
Abstract [en]

A newly established scaling of the ELM energy fluence using dedicated data sets from JET operation with CFC & ILW plasma facing components (PFCs), ASDEX Upgrade (AUG) operation with both CFC and full-W PFCs and MAST with CFC walls has been generated. The scaling reveals an approximately linear dependence of the peak ELM energy with the pedestal top electron pressure and with the minor radius; a square root dependence is seen on the relative ELM loss energy. The result of this scaling gives a range in parallel peak ELM energy fluence of 10-30 MJm(-2) for ITER Q = 10 operation and 2.5-7.5 MJm(-2) for intermediate ITER operation at 7.5 MA and 2.65 T. These latter numbers are calculated using a numerical regression (epsilon(II) = 0.28 MJ/m(2) n(e)(0.75) T-e(1) Delta E-ELM(0.5) R-1(geo)). A simple model for ELM induced thermal load is introduced, resulting in an expression for the ELM energy fluence of epsilon(II) congruent to 6 pi p(e) R-geo q(edge). The relative ELM loss energy in the data is between 2-10% and the ELM energy fluence varies within a range of 10(0.5) similar to 3 consistently for each individual device. The so far analysed power load database for ELM mitigation experiments from JET-EFCC and Kicks, MAST-RMP and AUG-RMP operation are found to be consistent with both the scaling and the introduced model, ie not showing a further reduction with respect to their pedestal pressure. The extrapolated ELM energy fluencies are compared to material limits in ITER and found to be of concern.

Place, publisher, year, edition, pages
ELSEVIER , 2017. Vol. 12, p. 84-90
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:uu:diva-399665DOI: 10.1016/j.nme.2017.04.014ISI: 000417293300011OAI: oai:DiVA.org:uu-399665DiVA, id: diva2:1379595
Note

For complete list of authors see http://dx.doi.org/10.1016/j.nme.2017.04.014

Available from: 2019-12-17 Created: 2019-12-17 Last updated: 2019-12-17Bibliographically approved

Open Access in DiVA

fulltext(996 kB)12 downloads
File information
File name FULLTEXT01.pdfFile size 996 kBChecksum SHA-512
8da53f266ac1649ac0cac6c073f981aaf260d347ea68289abb0b28162a2ab0c1dd951b837ece7d7e6b6ca9bf191834254dbdfd18560d08f30b366797a9a4334d
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Andersson Sundén, ErikBinda, FedericoCecconello, MarcoConroy, SeanDzysiuk, NataliiaEricsson, GöranEriksson, JacobHellesen, CarlHjalmarsson, AndersPossnert, GöranSjöstrand, HenrikSkiba, MateuszWeiszflog, Matthias
By organisation
Applied Nuclear PhysicsDepartment of Physics and Astronomy
In the same journal
Nuclear Materials and Energy
Fusion, Plasma and Space Physics

Search outside of DiVA

GoogleGoogle Scholar
Total: 12 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 14 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf