TY - JOUR
T1 - ECH and hhfw start-up experiments on the TST-2 spherical tokamak
AU - Ejiri, A.
AU - Oosako, T.
AU - Tsujimura, J.
AU - Shimada, Y.
AU - Takase, Y.
AU - Torii, Y.
AU - Sasaki, M.
AU - Tqjo, H.
AU - Masuda, T.
AU - Nuga, H.
AU - Sumitomo, N.
AU - Kainaga, S.
AU - Sugiyama, J.
AU - Tsujii, N.
PY - 2007/2
Y1 - 2007/2
N2 - Plasma start-up experiments without using inductive field have been performed on the TST-2 spherical tokamak device. A low power ECH (2.45GHz/4kW) and a medium power High Harmonic Fast Wave (HHFW) (21 MHz/up to 50kW) were used. Comparisons of various operational parameters were carried out to find the optimum conditions for the toroidal and the poloidal field strengths, poloidal field configurations, ECH power and HHFW power. Using only ECH, currents up to about 0.4 kA were generated. Current increments by up to 0.4 kA were observed when we apply HHFW to ECH plasmas.
AB - Plasma start-up experiments without using inductive field have been performed on the TST-2 spherical tokamak device. A low power ECH (2.45GHz/4kW) and a medium power High Harmonic Fast Wave (HHFW) (21 MHz/up to 50kW) were used. Comparisons of various operational parameters were carried out to find the optimum conditions for the toroidal and the poloidal field strengths, poloidal field configurations, ECH power and HHFW power. Using only ECH, currents up to about 0.4 kA were generated. Current increments by up to 0.4 kA were observed when we apply HHFW to ECH plasmas.
UR - http://www.scopus.com/inward/record.url?scp=34247544270&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34247544270&partnerID=8YFLogxK
U2 - 10.13182/fst07-a1341
DO - 10.13182/fst07-a1341
M3 - Article
AN - SCOPUS:34247544270
SN - 1536-1055
VL - 51
SP - 168
EP - 170
JO - Fusion Science and Technology
JF - Fusion Science and Technology
IS - 2 T.
ER -