TY - JOUR
T1 - Penetration of the rotating magnetic field into the plasma
AU - Faulconer, D. W.
AU - Koch, R.
AU - Finken, Karl
PY - 1997/10
Y1 - 1997/10
N2 - The penetration of the dynamic ergodic divertor (DED) field into the plasma is described in the wave approximation over the projected frequency range, f≤ 10 kHz. Candidate waves are first described in the WKB sense, both cold-collisional and warm plasma approximations being employed. There follows an analysis in terms of the wave magnetic field which identifies the rotating DED field with the fast wave; a coupling calculation shows this wave to penetrate to the resonant surface as it would in vacuum, undiminished by the presence of plasma. Ideal MHD breaks down at the resonant surface, the resistive layer playing a dominant role.
AB - The penetration of the dynamic ergodic divertor (DED) field into the plasma is described in the wave approximation over the projected frequency range, f≤ 10 kHz. Candidate waves are first described in the WKB sense, both cold-collisional and warm plasma approximations being employed. There follows an analysis in terms of the wave magnetic field which identifies the rotating DED field with the fast wave; a coupling calculation shows this wave to penetrate to the resonant surface as it would in vacuum, undiminished by the presence of plasma. Ideal MHD breaks down at the resonant surface, the resistive layer playing a dominant role.
KW - Cold collisional
KW - Dynamic ergodic divertor
KW - Resistive layer
KW - Warm plasma approximations
KW - Wave magnetic field
UR - http://www.scopus.com/inward/record.url?scp=0031248087&partnerID=8YFLogxK
U2 - 10.1016/S0920-3796(97)00081-1
DO - 10.1016/S0920-3796(97)00081-1
M3 - Article
AN - SCOPUS:0031248087
SN - 0920-3796
VL - 37
SP - 399
EP - 409
JO - Fusion Engineering and Design
JF - Fusion Engineering and Design
IS - 3
ER -