Fusion Neutrons: Tritium Breeding and Impact on Wall Materials and Components of Diagnostic Systems

Rubel, M.

doi:10.1007/s10894-018-0182-1

Cited by 48 publications

(27 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3 He leaks from the Earth mantle but at a rate of hardly a few kg per year. The natural abundance of 3 He is about 300 atomic parts per million compared to 4 He. The US currently possesses around 25 kg of 3 He through its strategic reserve.…”

Section: Llmentioning

confidence: 99%

The helium bubble: Prospects for 3He-fuelled nuclear fusion

Temmerman

2021

Joule

View full text Add to dashboard Cite

Section: Llmentioning

confidence: 99%

The helium bubble: Prospects for 3He-fuelled nuclear fusion

Temmerman

2021

Joule

View full text Add to dashboard Cite

“…A power plant delivering substantially more than 1GW to the network would have a correspondingly higher capital cost and a more difficult integration in a national power grid. In this work, the total fusion power, P fus , includes the contribution of the energetic alpha particles and neutrons resulting from the DT reactions, as well as the exothermic neutron-lithium reactions in the breeder [41,42]. This results in a ratio of fusion to alpha power P fus /P α = 6.4.…”

Section: Identification Of Stellarator Reactor Design Points In the (...mentioning

confidence: 99%

“…Reactor design parameters kept fix in this study. Note that the fusion power accounts for alpha and neutron energy, as well as for exothermic breeder reactions[41,42].…”

mentioning

confidence: 99%

Physics design point of high-field stellarator reactors

Alonso,

Calvo,

Carralero

et al. 2021

Preprint

View full text Add to dashboard Cite

The ongoing development of electromagnets based on High Temperature Superconductors has led to the conceptual exploration of high-magnetic-field fusion reactors of the tokamak type, operating at on-axis fields above 10 T. In this work we explore the consequences of the potential future availability of high-field three-dimensional electromagnets on the physics design point of a stellarator reactor. We find that, when an increase in the magnetic field strength B is used to maximally reduce the device linear size R ∼ B −4/3 (with otherwise fixed magnetic geometry), the physics design point is largely independent of the chosen field strength/device size. A similar degree of optimization is to be imposed on the magnetohydrodynamic, transport and fast ion confinement properties of the magnetic configuration of that family of reactor design points. Additionally, we show that the family shares an invariant operation map of fusion power output as a function of the auxiliary power and relative density variation. The effect of magnetic field over-engineering is inspected and shown to alleviate some optimization requirements while toughening others. * The helically symmetric experiment (HSX) has been shown to possess a resilient localised pattern of field-line strike points [10], but a divertor was not foreseen in its construction. * This is not to say that deviations in particular parametric dependencies of the neoclassical and turbulence diffusivities with respect to the gyro-Bohm diffusivity are excluded. The neoclassical 1/ν limit discussed before is an example of this.

show abstract

“…Their energy is to be deposited in the lithium-containing blanket. Reactions with lithium produce tritium, which is indispensable for the reactor operation [7,8]. The role of neutrons and a neutron-induced effects have been described elsewhere [9,10].…”

Section: Introductionmentioning

confidence: 99%

Application of Ion Beam Analysis in Studies of First Wall Materials in Controlled Fusion Devices

Rubel

Widdowson

Dittrich

et al. 2022

Physics

Self Cite

View full text Add to dashboard Cite

The contribution provides a concise overview of ion beam analysis methods and procedures in studies of materials exposed to fusion plasmas in controlled fusion devices with magnetic confinement. An impact of erosion–deposition processes on the morphology of wall materials is presented. In particular, results for deuterium analyses are discussed. Underlying physics, advantages and limitations of methods are addressed. The role of wall diagnostics in studies of material migration and fuel retention is explained. A brief note on research and handling of radioactive and beryllium-contaminated materials is also given.

show abstract

Fusion Neutrons: Tritium Breeding and Impact on Wall Materials and Components of Diagnostic Systems

Cited by 48 publications

References 78 publications

The helium bubble: Prospects for 3He-fuelled nuclear fusion

The helium bubble: Prospects for 3He-fuelled nuclear fusion

Physics design point of high-field stellarator reactors

Application of Ion Beam Analysis in Studies of First Wall Materials in Controlled Fusion Devices

Contact Info

Product

Resources

About