High-Heat-Flux Target Design for the Material Plasma Exposure eXperiment

Arnold Lumsdaine; Joseph B. Tipton; Dennis Youchison; Venu Varma; Kirby Logan; Juergen Rapp

doi:10.1080/15361055.2019.1637239

High-Heat-Flux Target Design for the Material Plasma Exposure eXperiment

Arnold Lumsdaine, Joseph B. Tipton, Dennis Youchison, Venu Varma, Kirby Logan, Juergen Rapp

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The Material Plasma Exposure eXperiment (MPEX) steady-state linear plasma facility is currently under design at Oak Ridge National Laboratory. The facility proposes to produce ITER divertor-relevant plasma conditions with steady-state heat fluxes up to 10 MW/m² with ion fluxes up to 10²⁴/m²‧s. Plasmas will be produced from a helicon source with additional electron cyclotron and ion cyclotron heating, contained by superconducting magnets. MPEX will be capable of including targets that have been neutron irradiated from the High Flux Isotope Reactor (HFIR) in order to examine the effects of divertor-relevant plasma fluence on neutron-damaged materials. Targets can then be remotely transferred to an exchange chamber and moved into a handling station that is far from the MPEX magnets. Because of the high heat fluxes, the target must be actively cooled. Because the targets are activated, remote handling is required. The challenge of providing both active cooling and remote handling simultaneously has required a design and analysis effort that is the subject of this study.

Original language	English
Pages (from-to)	674-682
Number of pages	9
Journal	Fusion Science and Technology
Volume	75
Issue number	7
DOIs	https://doi.org/10.1080/15361055.2019.1637239
State	Published - Oct 3 2019

Bibliographical note

Publisher Copyright:
© 2019, © 2019 American Nuclear Society.

Funding

This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Fusion Energy Science under contract number DE-AC05-00OR22725, including an appointment to the ORNL Higher Education Research Experiences Program, sponsored by the U.S. Department of Energy and administered by the Oak Ridge Institute for Science and Education.

Funders	Funder number
Office of Fusion Energy Science	DE-AC05-00OR22725
U.S. Department of Energy
Office of Science
Oak Ridge National Laboratory
Oak Ridge Institute for Science and Education

Keywords

Material Plasma Exposure eXperiment
Plasma-material interactions
divertor
high heat flux
linear plasma facilities

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1080/15361055.2019.1637239

Cite this

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title = "High-Heat-Flux Target Design for the Material Plasma Exposure eXperiment",

abstract = "The Material Plasma Exposure eXperiment (MPEX) steady-state linear plasma facility is currently under design at Oak Ridge National Laboratory. The facility proposes to produce ITER divertor-relevant plasma conditions with steady-state heat fluxes up to 10 MW/m2 with ion fluxes up to 1024/m2‧s. Plasmas will be produced from a helicon source with additional electron cyclotron and ion cyclotron heating, contained by superconducting magnets. MPEX will be capable of including targets that have been neutron irradiated from the High Flux Isotope Reactor (HFIR) in order to examine the effects of divertor-relevant plasma fluence on neutron-damaged materials. Targets can then be remotely transferred to an exchange chamber and moved into a handling station that is far from the MPEX magnets. Because of the high heat fluxes, the target must be actively cooled. Because the targets are activated, remote handling is required. The challenge of providing both active cooling and remote handling simultaneously has required a design and analysis effort that is the subject of this study.",

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AU - Tipton, Joseph B.

AU - Youchison, Dennis

AU - Varma, Venu

AU - Logan, Kirby

AU - Rapp, Juergen

PY - 2019/10/3

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AB - The Material Plasma Exposure eXperiment (MPEX) steady-state linear plasma facility is currently under design at Oak Ridge National Laboratory. The facility proposes to produce ITER divertor-relevant plasma conditions with steady-state heat fluxes up to 10 MW/m2 with ion fluxes up to 1024/m2‧s. Plasmas will be produced from a helicon source with additional electron cyclotron and ion cyclotron heating, contained by superconducting magnets. MPEX will be capable of including targets that have been neutron irradiated from the High Flux Isotope Reactor (HFIR) in order to examine the effects of divertor-relevant plasma fluence on neutron-damaged materials. Targets can then be remotely transferred to an exchange chamber and moved into a handling station that is far from the MPEX magnets. Because of the high heat fluxes, the target must be actively cooled. Because the targets are activated, remote handling is required. The challenge of providing both active cooling and remote handling simultaneously has required a design and analysis effort that is the subject of this study.

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High-Heat-Flux Target Design for the Material Plasma Exposure eXperiment

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

Access to Document

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