Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Tani, Keiji*; Shinohara, Koji; Oikawa, Toshihiro*; Tsutsui, Hiroaki*; Miyamoto, Seiji; Kusama, Yoshinori; Sugie, Tatsuo
Nuclear Fusion, 52(1), p.013012_1 - 013012_21, 2012/01
Times Cited Count：32 Percentile：79.37(Physics, Fluids & Plasmas)*; Takeda, Tsuneo; Muraoka, Susumu; *; *
Journal of Nuclear Science and Technology, 33(3), p.268 - 270, 1996/03
Times Cited Count：0 Percentile：0.01(Nuclear Science & Technology)no abstracts in English
; ; Takeda, Tsuneo; Muraoka, Susumu;
Hoshasei Haikibutsu Kenkyu Renrakukai Rombunshu, VI, p.64 - 75, 1991/00
no abstracts in English
; ; ; ; *
JAERI-M 85-065, 15 Pages, 1985/06
no abstracts in English
; ; ; ; ; ; ; *
JAERI-M 85-050, 117 Pages, 1985/04
no abstracts in English
; ; *; *; *;
JAERI-M 84-218, 157 Pages, 1984/12
no abstracts in English
; ; *; *; *; *
JAERI-M 84-217, 97 Pages, 1984/12
no abstracts in English
*; ; *; ; ; Sengoku, Seio; ; ; ; ; et al.
JAERI-M 82-171, 45 Pages, 1982/11
no abstracts in English
Tani, Keiji*; Shinohara, Koji; Oikawa, Toshihiro*; Miyamoto, Seiji
no journal, ,
The benchmark test proposed at the last ITPA E-P meeting about the heat load on the first wall due to loss alpha particles in ITER with TBMs (Test Blanket Modules) was executed. In relation to the benchmark test, the effect of wall shape on the loss of alpha particles was also investigated. The benchmark test shows that the total power loss is as low as about 0.2%. Related studies show that the heat load is very sensitive to the wall shape and that a poloidal limiter in the axi-symmetry loss region on the first wall is very effective to reduce the local heat load near TBMs.
Tani, Keiji*; Shinohara, Koji; Oikawa, Toshihiro*; Miyamoto, Seiji
no journal, ,
ITER is planning to install ELM mitigation coils in the vacuum vessel. However, because the ELM mitigation coils produce a new error field in addition to those of the toroidal field ripple and the Test Blanket Modules, it is unclear if the error field from the ELM mitigation coils causes additional losses of fast ions and a consequent additional heat load on the first wall. We have investigated the effects of the ELM mitigation coils on the loss of fast ions using JAEA's orbit-following Monte-Carlo code. Results show that the loss of alpha particles is acceptably low at less than 1 %. The ELM mitigation coils, however, may cause a more significant loss of fast ions produced by NBI on the order of 5-6 %.
Tani, Keiji*; Shinohara, Koji; Oikawa, Toshihiro*; Miyamoto, Seiji
no journal, ,
The first results on the losses of fast ions caused by the ELM mitigation coils were presented at the last ITPA meeting. These results showed that the effect of the ELM coils on the loss of alpha particles is less than 1% of the total power. On the other hand, only the ELM coil field with a toroidal mode number n=4 causes a large loss of NBI-produced fast ions on the order of 5-6%. In the present work, we mainly investigated the reasons for this finding. The results indicate that in the ITER ELM coil system of n=4, there exists a complementary mode n=5, and their collaborative effect enlarges the loss region of NBI-produced banana particles because they are very close to each other.
