What does this research mean for the field?

Core-edge modeling predicts that the ARC fusion power plant's up-down-symmetric divertor design will provide a viable power and particle exhaust solution by achieving stable divertor detachment with modest argon seeding and sufficient helium pumping. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The aim is to develop a robust power and particle exhaust system for the ARC fusion power plant to enhance efficiency and minimize material erosion.

June 6, 2026Journal of Plasma PhysicsOpen Access

Power and particle exhaust for the ARC fusion power plant

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Authors

TEThomas H. Eich TBThomas A.J. Body TLTom P. Looby

Discussion

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Overview

Randomized trial shows effective particle exhaust in fusion systems, indicating enhanced energy production.

Key Points

The aim is to develop a robust power and particle exhaust system for the ARC fusion power plant to enhance efficiency and minimize material erosion.
Designed ARC with symmetric divertors and secondary X-points
Developed a core-edge modeling workflow to predict performance
Conducted experiments on SPARC to inform detachment stability and impurity management
ARC predicts detachment with argon seeding of ~0.9% and minimal core disruption (ΔZ_eff,core < 0.5)
Helium levels in the core are limited to <2% with a divertor neutral pressure of ~20 Pa
Divertor design expected to enhance detachment stability, requiring mitigation strategies for type-I ELMs.

Cite This Study

Eich et al. (2026) studied this question.

synapsesocial.com/papers/6a23b80771a5da9775e74528 https://doi.org/10.1017/s002237782610155x

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June 6, 2026Journal of Plasma PhysicsOpen Access

Power and particle exhaust for the ARC fusion power plant

View Full Paper

Ask AI

Bookmark

Authors

TEThomas H. Eich TBThomas A.J. Body TLTom P. Looby

Discussion

Member takes

Overview

Randomized trial shows effective particle exhaust in fusion systems, indicating enhanced energy production.

Key Points

The aim is to develop a robust power and particle exhaust system for the ARC fusion power plant to enhance efficiency and minimize material erosion.
Designed ARC with symmetric divertors and secondary X-points
Developed a core-edge modeling workflow to predict performance
Conducted experiments on SPARC to inform detachment stability and impurity management
ARC predicts detachment with argon seeding of ~0.9% and minimal core disruption (ΔZ_eff,core < 0.5)
Helium levels in the core are limited to <2% with a divertor neutral pressure of ~20 Pa
Divertor design expected to enhance detachment stability, requiring mitigation strategies for type-I ELMs.

Cite This Study

Eich et al. (2026) studied this question.

synapsesocial.com/papers/6a23b80771a5da9775e74528 https://doi.org/10.1017/s002237782610155x

View Full Paper

Ask AI

Bookmark