Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Heat Flux Analysis From IR Imaging on Proto-MPEX

Journal Article · · IEEE Transactions on Plasma Science
 [1];  [1];  [2];  [3];  [4];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Illinois at Urbana-Champaign, IL (United States)
  3. Univ. of Tennessee, Knoxville, TN (United States)
  4. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
+ Show Author Affiliations

The Prototype Material Plasma Exposure eXperiment (Proto-MPEX) is a linear device used to develop the source and heating concept for MPEX, an experiment to study plasma–material interactions for future fusion reactors. This paper highlights recent analysis and results on Proto-MPEX using an infrared (IR) camera, a key tool for imaging heat fluxes measured at the material target. The target heat fluxes are crucial to understanding the source and heating concepts. The recent analysis includes the application of homography and 3-D finite-element methods to provide between-shot measurements of the 2-D target heat flux profile. The IR camera inferred heat flux is shown to correlate with Langmuir probe inferred heat fluxes for a range of parameters in helicon only and helicon + electron cyclotron heated discharges. Results show both desirable central and undesirable edge heat flux for helicon source and electron heating on the target. These heat flux measurements are shown to be important for better understanding of the source and heating physics.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1661254
Journal Information:
IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 9 Vol. 48; ISSN 0093-3813
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

Similar Records

Characterization of the helicon plasma flux to the target of Proto-MPEX
Journal Article · Fri Dec 07 23:00:00 EST 2018 · Fusion Engineering and Design · OSTI ID:1486956
Latest Results from Proto-MPEX and the Future Plans for MPEX
Journal Article · Wed Jun 05 00:00:00 EDT 2019 · Fusion Science and Technology · OSTI ID:1649621
Plasma flow measurements in the Prototype-Material Plasma Exposure eXperiment (Proto-MPEX) and comparison with B2.5-Eirene modeling
Journal Article · Fri May 25 00:00:00 EDT 2018 · Physics of Plasmas · OSTI ID:1607311

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Heat flux
heating
infrared (IR) imaging
Material Plasma Exposure eXperiment (MPEX)
plasma–material interactions (PMIs)