Final Design of Vacuum Pumping Systems for the Material Plasma Exposure eXperiment

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The Material Plasma Exposure eXperiment (MPEX) vacuum pumping system is responsible for creating prototypic conditions in the plasma material interaction chamber that mimic those in a fusion reactor divertor region. Additionally, the vacuum system needs to minimize the pressure in the plasma heating region to improve the coupling of the electron cyclotron heating and ion cyclotron heating to the plasma, minimizing waste heat exhausted to high heat flux components. The final design of the system has been sized to comply with the vacuum pump operating environment and to reduce the number of unique pumps required while meeting performance requirements. Bounding cases with and without the plasma present have been developed in the pumping analysis, and an initial calculation has been performed based on the plasma pumping identified in Proto-MPEX operation though this result will remain unverified until MPEX operation.

Original languageEnglish
Pages (from-to)1178-1186
Number of pages9
JournalFusion Science and Technology
Volume79
Issue number8
DOIs
StatePublished - 2023

Funding

This research is sponsored by the Office of Fusion Energy Sciences, U.S. Department of Energy, under contract number DE-AC05-00OR22725 with UT-Battelle, LLC. This manuscript has been authored by UT-Battelle, LLC under contract number DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). This research is sponsored by the Office of Fusion Energy Sciences, U.S. Department of Energy, under contract number DE-AC05-00OR22725 with UT-Battelle, LLC. This manuscript has been authored by UT-Battelle, LLC under contract number DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).

Keywords

  • MPEX vacuum pumping system
  • plasma experiments
  • plasma material interactions
  • plasma pumping
  • vacuum performance analyses

Fingerprint

Dive into the research topics of 'Final Design of Vacuum Pumping Systems for the Material Plasma Exposure eXperiment'. Together they form a unique fingerprint.

Cite this