2024-03-29T06:36:21Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00026899
2023-01-16T04:16:58Z
320:321:322
Blob- and hole-like structures outstanding during the transition from attached to detached divertor states in GAMMA 10/PDX
Tanaka, H.
88118
Sakamoto, M.
88119
Ezumi, N.
88120
Nojiri, K.
88121
Terakado, A.
88122
Mikami, T.
88123
Kinoshita, Y.
88124
Kobayashi, K.
88125
Yoshikawa, M.
88126
Kohagura, J.
88127
Ohno, N.
88128
We have measured multipoint fluctuations inside a divertor simulation experimental module (D-module) during the transient discharge from attached to detached states in the tandem mirror device GAMMA 10/PDX. It was first observed that blob-/hole- like positive/negative spikes of the ion saturation current appeared non-periodically around the radially outer side edge on the V-shaped target plate. This tendency became outstanding in the transient state, and the typical speed and size of the isolated blob-like structures in the azimuthal direction were estimated. Additionally, lower-frequency periodic mode fluctuations and their changes due to plasma detachment were investigated not only in the D-module but also in the central cell with the microwave interferometer, etc. Odd and even modes continuously appeared during the discharge, in the range of several kilohertz.
ファイル公開:2019/08/01
journal article
AIP Publishing
2018-08
application/pdf
Physics of Plasmas
8
25
082505
1070-664X
1089-7674
https://nagoya.repo.nii.ac.jp/record/26899/files/1_5040800.pdf
eng
https://doi.org/10.1063/1.5040800
Copyright 2018 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.The following article appeared in (Physics of Plasmas. v.25, 2018, p.082505) and may be found at (http://dx.doi.org/10.1063/1.5040800).