Disruption mitigation by massive gas injection in JET

M. Lehnen; A. Alonso; G. Arnoux; N. Baumgarten; S. A. Bozhenkov; S. Brezinsek; M. Brix; T. Eich; S. N. Gerasimov; A. Huber; S. Jachmich; U. Kruezi; P. D. Morgan; V. V. Plyusnin; C. Reux; V. Riccardo; G. Sergienko; M. F. Stamp

doi:10.1088/0029-5515/51/12/123010

Disruption mitigation by massive gas injection in JET

M. Lehnen, A. Alonso, G. Arnoux, N. Baumgarten, S. A. Bozhenkov, S. Brezinsek, M. Brix, T. Eich, S. N. Gerasimov, A. Huber, S. Jachmich, U. Kruezi, P. D. Morgan, V. V. Plyusnin, C. Reux, V. Riccardo, G. Sergienko, M. F. Stamp

Laboratory for Plasma Physics

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

Abstract

Disruption mitigation is mandatory for ITER in order to reduce forces, to mitigate heat loads during the thermal quench and to avoid runaway electrons (REs). A fast disruption mitigation valve has been installed at JET to study mitigation by massive gas injection. Different gas species and amounts have been investigated with respect to timescales and mitigation efficiency. We discuss the mitigation of halo currents as well as sideways forces during vertical displacement events, the mitigation of heat loads by increased energy dissipation through radiation, the heat loads which could arise by asymmetric radiation and the suppression of REs.

Original language	English
Article number	123010
Journal	Nuclear Fusion
Volume	51
Issue number	12
DOIs	https://doi.org/10.1088/0029-5515/51/12/123010
Publication status	Published - Dec 2011

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Lehnen, M., Alonso, A., Arnoux, G., Baumgarten, N., Bozhenkov, S. A., Brezinsek, S., Brix, M., Eich, T., Gerasimov, S. N., Huber, A., Jachmich, S., Kruezi, U., Morgan, P. D., Plyusnin, V. V., Reux, C., Riccardo, V., Sergienko, G., & Stamp, M. F. (2011). Disruption mitigation by massive gas injection in JET. Nuclear Fusion, 51(12), Article 123010. https://doi.org/10.1088/0029-5515/51/12/123010

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abstract = "Disruption mitigation is mandatory for ITER in order to reduce forces, to mitigate heat loads during the thermal quench and to avoid runaway electrons (REs). A fast disruption mitigation valve has been installed at JET to study mitigation by massive gas injection. Different gas species and amounts have been investigated with respect to timescales and mitigation efficiency. We discuss the mitigation of halo currents as well as sideways forces during vertical displacement events, the mitigation of heat loads by increased energy dissipation through radiation, the heat loads which could arise by asymmetric radiation and the suppression of REs.",

author = "M. Lehnen and A. Alonso and G. Arnoux and N. Baumgarten and Bozhenkov, {S. A.} and S. Brezinsek and M. Brix and T. Eich and Gerasimov, {S. N.} and A. Huber and S. Jachmich and U. Kruezi and Morgan, {P. D.} and Plyusnin, {V. V.} and C. Reux and V. Riccardo and G. Sergienko and Stamp, {M. F.}",

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AU - Lehnen, M.

AU - Alonso, A.

AU - Arnoux, G.

AU - Baumgarten, N.

AU - Bozhenkov, S. A.

AU - Brezinsek, S.

AU - Brix, M.

AU - Eich, T.

AU - Gerasimov, S. N.

AU - Huber, A.

AU - Jachmich, S.

AU - Kruezi, U.

AU - Morgan, P. D.

AU - Plyusnin, V. V.

AU - Reux, C.

AU - Riccardo, V.

AU - Sergienko, G.

AU - Stamp, M. F.

PY - 2011/12

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Disruption mitigation by massive gas injection in JET

Abstract

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