TY - JOUR
T1 - Studies of the plasma vertical instability and its stabilized concepts in JA and EU broader approach, DEMO design activity
AU - Utoh, Hiroyasu
AU - Tokunaga, Shinsuke
AU - Asakura, Nobuyuki
AU - Sakamoto, Yoshiteru
AU - Someya, Yoji
AU - Hiwatari, Ryoji
AU - Tobita, Kenji
AU - Federici, Gianfranco
AU - Wenninger, Ronald
AU - Maviglia, Francesco
AU - Albanese, Raffaele
AU - Ambrosino, Roberto
AU - Mattei, Massimiliano
AU - Villone, Fabio
N1 - Funding Information:
This work was carried out within the framework of the Broader Approach DEMO Design Activity. Contribution by all members of JA and EU Home Teams for BA is greatly appreciated.
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/11
Y1 - 2018/11
N2 - Vertical instability of an elongated plasma and its stabilized concepts by in-vessel components and vacuum vessel (VV) design have been studied intensely in JA and EU Broader Approach, DEMO Design Activity. The vertical stabilization of the plasma represents one of the key issues for EU and JA DEMO, due to the large distance of the active control coils for the presence of thick breeding blanket system. A feasible DEMO reactor that maintains plasma vertical stability was proposed from an engineering viewpoint. The vertical stability performances are acceptable, without considering a passive stabilizer, if a maximum elongation of κ95 = 1.6 is chosen. For the higher-elongated plasmas (κ95 > 1.70), additional inboard passive stabilizer is effective.
AB - Vertical instability of an elongated plasma and its stabilized concepts by in-vessel components and vacuum vessel (VV) design have been studied intensely in JA and EU Broader Approach, DEMO Design Activity. The vertical stabilization of the plasma represents one of the key issues for EU and JA DEMO, due to the large distance of the active control coils for the presence of thick breeding blanket system. A feasible DEMO reactor that maintains plasma vertical stability was proposed from an engineering viewpoint. The vertical stability performances are acceptable, without considering a passive stabilizer, if a maximum elongation of κ95 = 1.6 is chosen. For the higher-elongated plasmas (κ95 > 1.70), additional inboard passive stabilizer is effective.
KW - Broader approach DEMO design activity (BA DDA)
KW - Conducting shell
KW - DEMO design
KW - In-vessel component
KW - Plasma vertical stability
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U2 - 10.1016/j.fusengdes.2018.04.026
DO - 10.1016/j.fusengdes.2018.04.026
M3 - Article
AN - SCOPUS:85045212944
SN - 0920-3796
VL - 136
SP - 874
EP - 877
JO - Fusion Engineering and Design
JF - Fusion Engineering and Design
ER -