Plasma ion heating by cryogenic pellet injection

Aleynikov, Pavel; Breizman, Boris N.; Helander, Per; Turkin, Yuriy

doi:10.1017/s0022377818001332

Title: Plasma ion heating by cryogenic pellet injection

Journal Article · 10 January 2019 · Journal of Plasma Physics

DOI: https://doi.org/10.1017/s0022377818001332 · OSTI ID:1787337

Aleynikov, Pavel ^[1]; Breizman, Boris N. ^[2]; Helander, Per ^[3]; Turkin, Yuriy ^[3]

Max Planck Institute for Plasma Physics, Greifswald (Germany); Institute for Fusion Studies
Univ. of Texas, Austin, TX (United States). Institute for Fusion Studies
Max Planck Institute for Plasma Physics, Greifswald (Germany)

In this work, the injection of cryogenic pellets into a magnetically confined plasma is shown to be accompanied by a considerable transfer of thermal energy from the electrons in the background plasma to the ions. The resulting ion heating can be significant, particularly in plasmas with disparate electron and ion temperatures, and can affect the energy balance of the plasma. In recent Wendelstein 7-X experiments, this mechanism can account for a substantial fraction of the ion heating power during pellet injection.

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Research Organization:: Univ. of Texas, Austin, TX (United States). Institute for Fusion Studies

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: FG02-04ER54742

OSTI ID:: 1787337

Journal Information:: Journal of Plasma Physics, Journal Name: Journal of Plasma Physics Journal Issue: 1 Vol. 85; ISSN 0022-3778

Publisher:: Cambridge University PressCopyright Statement

Country of Publication:: United States

Language:: English

References (10)

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Cited By (1)

Physics of runaway electrons in tokamaks Breizman, Boris N.; Aleynikov, Pavel; Hollmann, Eric M. Nuclear Fusion, Vol. 59, Issue 8 https://doi.org/10.1088/1741-4326/ab1822	journal	June 2019

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