Investigation of chaotic topology by density puked wave propagation
Grant-in-Aid for General Scientific Research (C)
|Allocation Type||Single-year Grants|
|Research Institution||KYOTO UNIVERSITY|
ZUSHI Hideki Heliotron Plasma Physics Laboratory, Kyoto University, Asociatted Prof.10DA01 : 20135619, ヘリオトロン核融合研究センター, 助教授 (20127096)
ITOH Kimitaka NIFS,A.P, 核融合科学研究所, 助教授 (50176327)
NAGASAKI Kazunobu PPLK,I, ヘリオトロン核融合研究センター, 助手 (20237506)
MIZUUCHI Tohru PPLK,A.P, ヘリオトロン核融合研究センター, 助教授 (20135619)
|Project Period (FY)
1992 – 1993
Completed(Fiscal Year 1993)
|Budget Amount *help
¥1,500,000 (Direct Cost : ¥1,500,000)
Fiscal Year 1993 : ¥800,000 (Direct Cost : ¥800,000)
Fiscal Year 1992 : ¥700,000 (Direct Cost : ¥700,000)
|Keywords||Pellet / Disraption / Divertor|
The results from 1992 to 1993 are summaried as follows :
(1) Magnetic field line tracing by pellet injection.
We investigate the temporal response of the ablated particles at the plasma inside, scrape-off layr, and divertor plates.
(a) A comparison between the particle traveling and the field line tracing shows a good agreement.
(b) Estimated connection length for divertor field lines is - 10m, which is deduced from the delay time measurement.
(c) For the particular position, a response is so quick to suggest the stochasiticity near the edge.
(d) Global confinement properties affect the propagation of the pulsed density.
(2) Density waves by an internal disruption
(a) Pulsed density waves are created around the rational surfaces and propagate as an m=0/n=0 mode.
(b) They reached to the divertor in a delayd time for density waves to diffuse out from the rational surface to the edge.
(c) For particular positions a response is so quick to suggest the stochasiticity near the edge.
Research Output (8results)