Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, Γ‰cole polytechnique fΓ©dΓ©rale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. 𝑋-Point Target Radiator Regime in Tokamak Divertor Plasmas
 
research article

𝑋-Point Target Radiator Regime in Tokamak Divertor Plasmas

Lee, K.  
β€’
Theiler, C.  
β€’
Carpita, M.  
Show more
May 7, 2025
Physical Review Letters

Fusion plasma regimes with a strongly radiating magnetic 𝑋 point are promising candidates to tackle the outstanding power exhaust challenge in reactor-scale devices. In this Letter, we report on a new type of 𝑋-point radiator, the XPTR (𝑋-point target radiator), produced by a secondary 𝑋 point placed well away from the confined plasma. This XPTR features strongly facilitated detachment access and significantly reduced sensitivity of the radiative front position near the secondary 𝑋 point. Consistent with a reduced analytical model, the physical origin of 𝑋-point radiation is rooted in its magnetic geometry, irrespective of whether the field lines are closed or open. The results presented open up a class of novel power exhaust concepts where radiative edge cooling can be robustly avoided during divertor detachment.

  • Details
  • Metrics
Type
research article
DOI
10.1103/physrevlett.134.185102
Author(s)
Lee, K.  

Γ‰cole Polytechnique FΓ©dΓ©rale de Lausanne

Theiler, C.  

Γ‰cole Polytechnique FΓ©dΓ©rale de Lausanne

Carpita, M.  

Γ‰cole Polytechnique FΓ©dΓ©rale de Lausanne

FΓ©vrier, O.

Γ‰cole Polytechnique FΓ©dΓ©rale de Lausanne

Perek, A.  

Γ‰cole Polytechnique FΓ©dΓ©rale de Lausanne

Zurita, M.  

Γ‰cole Polytechnique FΓ©dΓ©rale de Lausanne

Brida, D.
Ducker, R.  

Γ‰cole Polytechnique FΓ©dΓ©rale de Lausanne

Durr-Legoupil-Nicoud, G.  

Γ‰cole Polytechnique FΓ©dΓ©rale de Lausanne

Duval, B. P.  

Γ‰cole Polytechnique FΓ©dΓ©rale de Lausanne

Show more
Corporate authors
TCV Team
β€’
EUROfusion Tokamak Exploitation Team
Date Issued

2025-05-07

Publisher

American Physical Society (APS)

Published in
Physical Review Letters
Volume

134

Article Number

185102

Subjects

Magnetic confinement fusion

β€’

Nuclear fusion

β€’

Plasma fusion

β€’

Plasma-wall interactions

β€’

Fusion reactors

β€’

Magnetically confined plasmas

β€’

Tokamaks

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SPC-PB  
SPC-TCV  
ESL  
FunderFunding(s)Grant NumberGrant URL

Swiss National Science Foundation

Euratom Research and Training Programme

101052200β€”EUROfusion

Staatssekretariat fΓΌr Bildung, Forschung und Innovation

Available on Infoscience
May 9, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/249989
Logo EPFL, Γ‰cole polytechnique fΓ©dΓ©rale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. Β© EPFL, tous droits rΓ©servΓ©s