Study of the effects of liquid lithium curtain as first wall on plasma

Deng, B.Q.; Huang, Jinhua; Yan, Jun; Peng, Li‐Yan; Wang, E.Y.

doi:10.1016/s0022-3115(02)01367-3

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…We have investigated the lithium evaporation, MHD motion and time evolution of the LVCP in a magnetic field; the heating and ionization of the lithium vapour cloud by incident charged particles (i.e. the energy deposition of incident charged particles and the shielding effects of the lithium vapour cloud); photon emission in the LVCP; self-absorption; permeation; transport problems, etc [31][32][33][34][35][36]. This is a major comprehensive and complicated research project coupled with many branch subjects.…”

Section: Calculation Results and Discussionmentioning

confidence: 99%

“…Our research shows that for circumstance of normal operation (nondisruption), the LVCP can effectively shield the divertor plate from the direct dumping of high heat flux. How much lithium entering the plasma through evaporation at normal operation temperatures is acceptable for the plasma effective charge number has been studied by the current authors in [34].…”

Section: Calculation Results and Discussionmentioning

confidence: 99%

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A physical model of an ejection suppressed CPS liquid lithium divertor target

Zheng

Gou

et al. 2015

Nucl. Fusion

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A physical model has been developed which includes high temperature liquid lithium evaporation, the expanding motion of the liquid lithium vapour cloud, the shielding effects of the vapour cloud on incident plasma particle bombardments, ejection suppressed analysis and a perpendicular field proposal, and photon radiation, heat flux and transport in the lithium vapour cloud plasma. The engineering outline design scheme and the relevant parameters for the liquid lithium surface divertor target plate configured by discrete tiny capillary arrays have been established. Splashing can be suppressed by utilizing discrete and electrical insulating capillary porous systems (CPSs), since the conductivity among the capillary cells has been cut off by adopting a special kind of ceramic composite material made of a non-conducting and unbreakable composite which is able to withstand high temperatures. The formula to describe the temperature-dependent evaporation power has been derived. The maximum temperature increases of the discrete plasma-facing liquid lithium surface divertor target plate have been compared under the high energy flux deposition of 10 MJ m −2 during a 1 ms time duration with or without evaporation power. The results show that a high surface heat load can be withstood by the designed discrete plasma-facing liquid lithium surface divertor target plate due to violent evaporation. The energy deposition of incident energetic particles and weakly relativistic electrons from the scrape-off layer have been calculated. A laboratory experimental facility to simulate liquid lithium surface interactions with plasma has been set up. Research on lithium evaporation, re-deposition and ejection suppressed experiments under high density linear plasma dumping is ongoing.

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