A realistic approach to improve the shell proximity of an RFP device
Creators
- 1. Electrotechnical Lab., Tsukuba, Ibaraki (Japan)
Description
The proximity of the shell to the plasma surface is important for Reversed Field Pinch (RFP) plasmas to have smaller magnetic field fluctuation amplitudes hence to improve global confinement properties. This paper introduces a realistic approach to improve the shell proximity, which was adopted for the modification of an RFP device, TPE-1RM15, into TPE-1RM20. After having the triple shell structure in TPE-1RM20, the shell proximity has been improved from b/a = 1.18 to 1.08, where b and a are the minor radius of the innermost shell surface and the plasma, respectively. Initial plasma discharges have shown a factor of two improvement of the energy confinement time with a reduction of radial magnetic field fluctuation level at the wall. (author)
Additional details
Publishing Information
- Journal Title
- Purazuma, Kaku Yugo Gakkai-Shi
- Journal Volume
- 69
- Journal Issue
- 6
- Journal Page Range
- p. 700-713.
- ISSN
- 0918-7928
- CODEN
- PKYGE5
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 25013470
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- CONTAINMENT SHELLS; FIELD-REVERSED THETA PINCH DEVICES; MAGNETIC CONFINEMENT; MAGNETIC FIELD REVERSAL; MAGNETIC FIELDS; PLASMA; REVERSE-FIELD PINCH; SPECIFICATIONS; TPE-1RM15 DEVICE
- Descriptors DEC
- CLOSED PLASMA DEVICES; COMPACT TORUS; CONFINEMENT; CONTAINMENT; MAGNETIC FIELD CONFIGURATIONS; PINCH DEVICES; PINCH EFFECT; PLASMA CONFINEMENT; THERMONUCLEAR DEVICES; TORI; TOROIDAL PINCH DEVICES