The Material Plasma Exposure eXperiment: Mission and conceptual design

Rapp, Juergen; Lumsdaine, Arnold; Beers, Clyde; Biewer, Theodore; Bigelow, Timothy S.; Boyd, G. Ted; Caneses Marin, Juan; Caughman, John; Duckworth, Robert; Goulding, Richard; Hicks III, William; Lau, Cornwall; Piotrowicz, Pawel A.; West, David; Youchison, Dennis

doi:10.1016/j.fusengdes.2020.111586

The Material Plasma Exposure eXperiment: Mission and conceptual design

Journal Article · Sat Feb 29 00:00:00 EST 2020 · Fusion Engineering and Design

DOI:https://doi.org/10.1016/j.fusengdes.2020.111586· OSTI ID:1606925

^[1]; ^[1]; ^[2]; ^[1]; ^[1]; ^[1]; ^[1]; ^[1]; ^[1]; ^[1]; ^[1]; ^[1]; Piotrowicz, Pawel A. ^[3]; ^[1]; ^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Illinois at Urbana-Champaign, IL (United States)

Mastering Plasma Material Interactions (PMI) is key for obtaining a high performance, high duty-cycle and safe operating fusion reactor. Numerous gaps exist in PMI which have to be addressed before a reactor can be built. In particular the lack of data at high ion fluence, fusion reactor divertor relevant plasma conditions and neutron displacement damage requires new experimental devices to be able to develop plasma facing materials and components. This has been recognized in the community and the U.S. fusion program is addressing this need with a new linear plasma device—the Material Plasma Exposure eXperiment (MPEX). MPEX will be a superconducting linear plasma device with magnetic fields of up to 2.5 T. The plasma source is a high-power helicon source (200 kW, 13.56 MHz). The electrons will be heated via Electron Bernstein Waves with microwaves using multiple 70 GHz gyrotrons (up to 600 kW in total). Ions will be heated via ion cyclotron heating in the so-called “magnetic beach heating” scheme in the frequency range of 6–9 MHz (up to 400 kW in total). An overview of the conceptual design and the project/design requirements is given in this paper.

View Accepted Manuscript (DOE)

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)

Contributing Organization:: MPEX Team

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1606925

Alternate ID(s):: OSTI ID: 2325338

Journal Information:: Fusion Engineering and Design, Journal Name: Fusion Engineering and Design Journal Issue: C Vol. 156; ISSN 0920-3796

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (23)

Progress in magnet design activities for the material plasma exposure experiment Duckworth, Robert; Lumsdaine, Arnold; Rapp, Juergen Fusion Engineering and Design, Vol. 124 https://doi.org/10.1016/j.fusengdes.2017.05.137	journal	November 2017
High-fluence and high-flux performance characteristics of the superconducting Magnum-PSI linear plasma facility van Eck, H. J. N.; Akkermans, G. R. A.; Alonso van der Westen, S. Fusion Engineering and Design, Vol. 142 https://doi.org/10.1016/j.fusengdes.2019.04.020	journal	May 2019
Transport simulations of linear plasma generators with the B2.5-Eirene and EMC3-Eirene codes Rapp, J.; Owen, L. W.; Bonnin, X. Journal of Nuclear Materials, Vol. 463 https://doi.org/10.1016/j.jnucmat.2014.12.058	journal	August 2015
Helicon plasma ion temperature measurements and observed ion cyclotron heating in proto-MPEX Beers, C. J.; Goulding, R. H.; Isler, R. C. Physics of Plasmas, Vol. 25, Issue 1 https://doi.org/10.1063/1.4994541	journal	January 2018
Differential pumping requirements for the light-ion helicon source and heating systems of Proto-MPEX Caneses, J. F.; Piotrowicz, P. A.; Biewer, T. M. Physics of Plasmas, Vol. 25, Issue 8 https://doi.org/10.1063/1.5001519	journal	August 2018
Observations of electron heating during 28 GHz microwave power application in proto-MPEX Biewer, T. M.; Bigelow, T. S.; Caneses, J. F. Physics of Plasmas, Vol. 25, Issue 2 https://doi.org/10.1063/1.5018479	journal	February 2018
An electron Bernstein wave heating scheme for the Proto-MPEX linear device Diem, S. J.; Green, D. L.; Harvey, R. W. Physics of Plasmas, Vol. 25, Issue 7 https://doi.org/10.1063/1.5033334	journal	July 2018
Evidence of electron heating at different radial locations on Proto-MPEX Lau, C.; Caneses, J. F.; Bigelow, T. S. Physics of Plasmas, Vol. 26, Issue 3 https://doi.org/10.1063/1.5083814	journal	March 2019
Utilization of O-X-B mode conversion of 28 GHz microwaves to heat core electrons in the upgraded Proto-MPEX Biewer, T. M.; Lau, C.; Bigelow, T. S. Physics of Plasmas, Vol. 26, Issue 5 https://doi.org/10.1063/1.5093321	journal	May 2019
Ion Fluxes and Neutral Gas Ionization Efficiency of the 100-kW Light-Ion Helicon Plasma Source Concept for the Material Plasma Exposure eXperiment Caneses, J. F.; Piotrowicz, P. A.; Biewer, T. M. Fusion Science and Technology, Vol. 75, Issue 7 https://doi.org/10.1080/15361055.2019.1622988	journal	June 2019
Results of Ion Cyclotron Heating Experiments on Proto-MPEX Utilizing a Movable Stainless Steel Target Goulding, R. H.; Piotrowicz, P. A.; Beers, C. J. Fusion Science and Technology, Vol. 75, Issue 7 https://doi.org/10.1080/15361055.2019.1623569	journal	June 2019
Reduction of divertor heat load in JET ELMy H-modes using impurity seeding techniques Rapp, J.; Monier-Garbet, P.; Matthews, G. F. Nuclear Fusion, Vol. 44, Issue 2 https://doi.org/10.1088/0029-5515/44/2/013	journal	January 2004
Integrated scenario with type-III ELMy H-mode edge: extrapolation to ITER Rapp, J.; Corre, Y.; Andrew, Y. Nuclear Fusion, Vol. 49, Issue 9 https://doi.org/10.1088/0029-5515/49/9/095012	journal	August 2009
Radiative type-III ELMy H-mode in all-tungsten ASDEX Upgrade Rapp, J.; Kallenbach, A.; Neu, R. Nuclear Fusion, Vol. 52, Issue 12 https://doi.org/10.1088/0029-5515/52/12/122002	journal	November 2012
Scaling of the tokamak near the scrape-off layer H-mode power width and implications for ITER Eich, T.; Leonard, A. W.; Pitts, R. A. Nuclear Fusion, Vol. 53, Issue 9 https://doi.org/10.1088/0029-5515/53/9/093031	journal	August 2013
Developing the science and technology for the Material Plasma Exposure eXperiment Rapp, J.; Biewer, T. M.; Bigelow, T. S. Nuclear Fusion, Vol. 57, Issue 11 https://doi.org/10.1088/1741-4326/aa7b1c	journal	July 2017
The Development of the Material Plasma Exposure Experiment Rapp, Juergen; Biewer, T. M.; Bigelow, T. S. IEEE Transactions on Plasma Science, Vol. 44, Issue 12 https://doi.org/10.1109/TPS.2016.2628326	journal	December 2016
Design and Analysis of an Actively Cooled Window for a High-Power Helicon Plasma Source Lumsdaine, Arnold; Meitner, Steve; Goulding, Richard IEEE Transactions on Plasma Science, Vol. 47, Issue 1 https://doi.org/10.1109/TPS.2018.2859388	journal	January 2019
The Materials Plasma Exposure eXperiment: Status of the Physics Basis Together With the Conceptual Design and Plans Forward Rapp, J.; Lau, C.; Lumsdaine, A. IEEE Transactions on Plasma Science, Vol. 48, Issue 6 https://doi.org/10.1109/TPS.2020.2970398	journal	June 2020
Conceptual Design and Performance Considerations for Superconducting Magnets in the Material Plasma Exposure eXperiment Duckworth, R. C.; Burkhardt, E. E.; Lumsdaine, A. IEEE Transactions on Plasma Science, Vol. 48, Issue 6 https://doi.org/10.1109/TPS.2020.2985948	journal	June 2020
Plasma source development for fusion-relevant material testing Caughman, John B. O.; Goulding, Richard H.; Biewer, Theodore M. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 35, Issue 3 https://doi.org/10.1116/1.4982664	journal	May 2017
The Development of Plasma-Material Interaction Facilities for the Future of Fusion Technology Rapp, J.; Biewer, T. M.; Canik, J. Fusion Science and Technology, Vol. 64, Issue 2 https://doi.org/10.13182/FST12-565	journal	August 2013
Neutron-Irradiated Samples as Test Materials for MPEX Ellis, Ronald J.; Rapp, Juergen Fusion Science and Technology, Vol. 68, Issue 4 https://doi.org/10.13182/FST14-909	journal	November 2015

Similar Records

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

Journal Article · Wed Feb 12 19:00:00 EST 2020 · IEEE Transactions on Plasma Science · OSTI ID:1649557

Plasma source development for fusion-relevant material testing

Journal Article · Sun Apr 30 20:00:00 EDT 2017 · Journal of Vacuum Science and Technology A · OSTI ID:1361355

Developing the science and technology for the Material Plasma Exposure eXperiment

Journal Article · Wed Jul 26 20:00:00 EDT 2017 · Nuclear Fusion · OSTI ID:1408019

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DEMO
Divertor
Linear devices
Materials
Plasma facing components
Plasma material interaction

The Material Plasma Exposure eXperiment: Mission and conceptual design

Citation Formats

References (23)

Similar Records

Related Subjects