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A review of radiative detachment studies in tokamak advanced magnetic divertor configurations

Journal Article · · Plasma Physics and Controlled Fusion
 [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
The present vision for a plasma–material interface in the tokamak is an axisymmetric poloidal magnetic X-point divertor. Four tasks are accomplished by the standard poloidal X-point divertor: plasma power exhaust; particle control (D/T and He pumping); reduction of impurity production (source); and impurity screening by the divertor scrape-off layer. A low-temperature, low heat flux divertor operating regime called radiative detachment is viewed as the main option that addresses these tasks for present and future tokamaks. Advanced magnetic divertor configuration has the capability to modify divertor parallel and cross-field transport, radiative and dissipative losses, and detachment front stability. Advanced magnetic divertor configurations are divided into four categories based on their salient qualitative features: (1) multiple standard X-point divertors; (2) divertors with higher order nulls; (3) divertors with multiple X-points; and (4) long poloidal leg divertors (and also with multiple X-points). As a result, this paper reviews experiments and modeling in the area of radiative detachment in the advanced magnetic divertor configurations.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1357373
Alternate ID(s):
OSTI ID: 22718114
Report Number(s):
LLNL-JRNL--715887-DRAFT
Journal Information:
Plasma Physics and Controlled Fusion, Journal Name: Plasma Physics and Controlled Fusion Journal Issue: 6 Vol. 59; ISSN 0741-3335
Publisher:
IOP ScienceCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (4)

SOLPS simulations with electron kinetic effects journal January 2019
Developing physics basis for the snowflake divertor in the DIII-D tokamak journal February 2018
Self-consistent simulation of supersonic plasma flows in advanced divertors journal June 2019
Performance assessment of long-legged tightly-baffled divertor geometries in the ARC reactor concept journal September 2019

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