Published May 1, 2004
| Version v1
Journal article
Edge transport barrier formation in compact helical system
Creators
- Okamura, S1
- Minami, T1
- Oishi, T2
- Suzuki, C1
- Ida, K1
- Isobe, M1
- Yoshimura, Y1
- Nagaoka, K1
- Toi, K1
- Fujisawa, A1
- Akiyama, T1
- Iguchi, H1
- Ikeda, R1
- Kado, S3
- Matsuoka, K1
- Matsushita, H1
- Nakamura, K1
- Nakano, H1
- Nishimura, S1
- Nishiura, M1
- Ohshima, S1
- Shimizu, A1
- Takagi, S1
- Takahashi, C1
- Takeuchi, M1
- Yoshinuma, M1
- 1. National Institute for Fusion Science, Oroshi 322-6, Toki 509-5292 (Japan)
- 2. Department of Quantum Engineering and System Science, Graduate School of Engineering, University of Tokyo, Hongo 7-3-1, Tokyo 113-8656 (Japan)
- 3. High Temperature Plasma Center, University of Tokyo, Yayoi 2-11-16, Tokyo 113-8656 (Japan)
Description
The edge transport barrier (ETB) for particle transport is formed in the neutral beam (NB) heated hydrogen discharges in compact helical system (CHS). The transition to the ETB formation and the back transition are controlled by the heating power. The existence of the heating power threshold is confirmed and it is roughly proportional to the density. The Hα emission signal shows a clear drop at the transition (the timescale of signal decrease is ∼1 ms for the high heating power case). The ETB formation continues for the full duration of NB injection (100 ms) with a moderate level of radiation power loss. Local density profile measurement shows increase of the edge density and the movement of the density gradient region towards the edge
Availability note (English)
Available online at http://stacks.iop.org/0741-3335/46/A113/ppcf4_5A_012.pdf or at the Web site for the journal Plasma Physics and Controlled Fusion (ISSN 1361-6587) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0741-3335/46/A113/ppcf4_5A_012.pdf; http://www.iop.org/;
- DOI
- 10.1088/0741-3335/46/5A/012;
- PII
- S0741-3335(04)70275-4;
Publishing Information
- Journal Title
- Plasma Physics and Controlled Fusion
- Journal Volume
- 46
- Journal Issue
- 5A
- Journal Page Range
- p. A113-A119
- ISSN
- 0741-3335
- CODEN
- PPCFET
Conference
- Title
- 9. IAEA technical committee meeting on H-mode physics and transport barriers
- Dates
- 24-26 Sep 2003
- Place
- San Diego, CA (United States)
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35077585
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BEAM INJECTION HEATING; CHARGED-PARTICLE TRANSPORT; HYDROGEN; NEUTRAL ATOM BEAM INJECTION; PLASMA DENSITY
- Descriptors DEC
- BEAM INJECTION; ELEMENTS; HEATING; NONMETALS; PLASMA HEATING; RADIATION TRANSPORT