The Materials Plasma Exposure eXperiment: Status of the Physics Basis Together With the Conceptual Design and Plans Forward

Rapp, Juergen; Lau, Cornwall; Lumsdaine, Arnold; Beers, Clyde; Bigelow, Tim S.; Biewer, Theodore; Caneses Marin, Juan; Caughman, John; Duckworth, Robert; Goulding, Richard; Hicks III, W; Kafle, Nischal; Piotrowicz, Pawel A.; West, David; Boyd, Ted

doi:10.1109/tps.2020.2970398

Title: The Materials Plasma Exposure eXperiment: Status of the Physics Basis Together With the Conceptual Design and Plans Forward

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Abstract

The Materials Plasma Exposure eXperiment (MPEX) is a linear plasma device that will address the plasma–material interaction (PMI) science for future fusion reactors and will enable testing of plasma-facing components (PFCs). It is designed as a steady-state device eventually delivering an ion fluence of up to 10³¹ m^-2 to the target. The device will be designed to handle neutron-activated materials. These capabilities should push the technical readiness level of PFCs up to six for some end-of-life aspects. In order to achieve the relevant plasma conditions, as they are expected in future fusion reactor divertors, MPEX will utilize a novel plasma source concept. This plasma source concept uses a high-power helicon (200 kW, 13.56 MHz), an electron cyclotron heating (ECH) system, which will heat electrons via electron Bernstein wave (EBW) heating (about 400 kW, 70 GHz), and an ion cyclotron heating (ICH) system (400 kW, 6–9 MHz). The physics basis for this plasma source concept including the heating physics and transport is based on experiments on Proto-MPEX. An overview of the experimental results and the physics basis will be given. The physics basis directly translates into functional requirements of MPEX and the conceptual design. The status of the conceptual design ofmore » MPEX will be shown.« less

Authors:

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^[2]; Piotrowicz, Pawel A. ^[1];

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Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Univ. of Tennessee, Knoxville, TN (United States)

Publication Date:: Thu Feb 13 00:00:00 EST 2020

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1649557

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: IEEE Transactions on Plasma Science

Additional Journal Information:: Journal Volume: 48; Journal Issue: 6; Journal ID: ISSN 0093-3813

Publisher:: IEEE

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

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                    Rapp, Juergen, Lau, Cornwall, Lumsdaine, Arnold, Beers, Clyde, Bigelow, Tim S., Biewer, Theodore, Caneses Marin, Juan, Caughman, John, Duckworth, Robert, Goulding, Richard, Hicks III, W, Kafle, Nischal, Piotrowicz, Pawel A., West, David, and Boyd, Ted. The Materials Plasma Exposure eXperiment: Status of the Physics Basis Together With the Conceptual Design and Plans Forward.  United States: N. p., 2020. 
Web.  doi:10.1109/tps.2020.2970398.

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                    Rapp, Juergen, Lau, Cornwall, Lumsdaine, Arnold, Beers, Clyde, Bigelow, Tim S., Biewer, Theodore, Caneses Marin, Juan, Caughman, John, Duckworth, Robert, Goulding, Richard, Hicks III, W, Kafle, Nischal, Piotrowicz, Pawel A., West, David, & Boyd, Ted. The Materials Plasma Exposure eXperiment: Status of the Physics Basis Together With the Conceptual Design and Plans Forward.  United States.  https://doi.org/10.1109/tps.2020.2970398

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                    Rapp, Juergen, Lau, Cornwall, Lumsdaine, Arnold, Beers, Clyde, Bigelow, Tim S., Biewer, Theodore, Caneses Marin, Juan, Caughman, John, Duckworth, Robert, Goulding, Richard, Hicks III, W, Kafle, Nischal, Piotrowicz, Pawel A., West, David, and Boyd, Ted. Thu .  
"The Materials Plasma Exposure eXperiment: Status of the Physics Basis Together With the Conceptual Design and Plans Forward".  United States.  https://doi.org/10.1109/tps.2020.2970398.  https://www.osti.gov/servlets/purl/1649557.

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@article{osti_1649557,

  title        = {The Materials Plasma Exposure eXperiment: Status of the Physics Basis Together With the Conceptual Design and Plans Forward},

  author       = {Rapp, Juergen and Lau, Cornwall and Lumsdaine, Arnold and Beers, Clyde and Bigelow, Tim S. and Biewer, Theodore and Caneses Marin, Juan and Caughman, John and Duckworth, Robert and Goulding, Richard and Hicks III, W and Kafle, Nischal and Piotrowicz, Pawel A. and West, David and Boyd, Ted},

  abstractNote = {The Materials Plasma Exposure eXperiment (MPEX) is a linear plasma device that will address the plasma–material interaction (PMI) science for future fusion reactors and will enable testing of plasma-facing components (PFCs). It is designed as a steady-state device eventually delivering an ion fluence of up to 1031 m-2 to the target. The device will be designed to handle neutron-activated materials. These capabilities should push the technical readiness level of PFCs up to six for some end-of-life aspects. In order to achieve the relevant plasma conditions, as they are expected in future fusion reactor divertors, MPEX will utilize a novel plasma source concept. This plasma source concept uses a high-power helicon (200 kW, 13.56 MHz), an electron cyclotron heating (ECH) system, which will heat electrons via electron Bernstein wave (EBW) heating (about 400 kW, 70 GHz), and an ion cyclotron heating (ICH) system (400 kW, 6–9 MHz). The physics basis for this plasma source concept including the heating physics and transport is based on experiments on Proto-MPEX. An overview of the experimental results and the physics basis will be given. The physics basis directly translates into functional requirements of MPEX and the conceptual design. The status of the conceptual design of MPEX will be shown.},

  doi          = {10.1109/tps.2020.2970398},

  journal      = {IEEE Transactions on Plasma Science},

  number       = 6,

  volume       = 48,

  place        = {United States},

  year         = {Thu Feb 13 00:00:00 EST 2020},

  month        = {Thu Feb 13 00:00:00 EST 2020}

}

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