@misc{oai:repo.qst.go.jp:00072856,
 author = {Nakashima, Y. and Islam, M.S. and Iijima, T. and Yokodo, T. and Sakamoto, M. and Ezumi, N. and Yoshikawa, M. and Asakura, Nobuyuki and Fukumoto, Masakatsu and Hatayama, A. and Hirata, M. and Ichimura, K. and Ichimur, M. and Ikezoe, R. and Imai, T. and Islam, M.M. and Kariya, T. and Katanuma, I. and Kohagura, J. and Lee, G. and Masuzaki, S. and Minami, R. and Nakano, Tomohide and Nojiri, K. and Numakura, T. and Sawada, K. and Terakado, A. and Togo, S. and Yamashita, S. and Yoshimoto, T. and Asakura, Nobuyuki and Fukumoto, Masakatsu and Nakano, Tomohide},
 month = {Jun},
 note = {In this paper, the detailed results of the effect of additional plasma
heating under the condition of plasma detachment produced in the
large tandem mirror GAMMA 10/PDX. In this experiment, the ECH
pulse of 150 kW was applied to the upstream region of detached
plasmas established by injecting heavy noble gases (Ar, Kr and Xe) and
the significant phenomena on detached to attached transition were
measured with Langmuir probes, calorimeters, spectrometers and a
high-speed camera. In the presentation, detailed behavior of the
plasma parameters is described and the effect of ECH is discussed in
terms of radiation loss power and ionization and recombination
processes.
During the plasma detachment experiments by impurity gas seeding, a short pulse (25 ms) of ECH was applied at the east plug/barriercell to examine the effects of ECH on the detached plasma. A brief summary of the outcomes is given below: ECH heating pulse significantly increases the heat flux at the west end-cell, which indicates detached to attached transition phenomena. During ECH injection period, the ion flux also increases with the increasing gas injection. The emission from the impurity ion enhances significantly during ECH injection period. The emission intensity captured with fast camera also shows a clear dependence on the gas throughput of N2 gas. Comparison of the results using light impurities (N2 and Ne) to those by a heavy impurity gas (Ar) indicates that detached plasma with N2 seeding has a certain tolerance for the additional heating. These outcomes also indicate to consider the sustainability of the detached plasma during ELM., The 23rd International Conference on Plasma Surface Interactions in Controlled Fusion Devices (PSI-23)},
 title = {Impact of additional plasma heating on detached plasma formation in divertor simulation experiments using the GAMMA 10/PDX tandem mirror},
 year = {2018}
}