Study of the pellet ablation cloud using the tomography technique for two-directional simultaneous photography in GAMMA 10/PDX

The pellet ablation mechanism is an interesting subject for plasma fuelling in fusion plasmas. In GAMMA 10/PDX, pellet injection experiments for higher density plasma production are planned to conduct detached plasma experiments in the higher density plasma condition. We measured the pellet ablation...

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Bibliographic Details
Published in:Journal of plasma physics 2024-04, Vol.90 (2), Article 905900208
Main Authors: Yoshikawa, M., Nakashima, Y., Kohagura, J., Shima, Y., Kobayashi, S., Minami, R., Ezumi, N., Sakamoto, M.
Format: Article
Language:English
Subjects:
Ablation
Cameras
Density
Electrons
Hydrogen
Image reconstruction
Magnetic fields
Pellets
Photography
Plasma
Tomography
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Summary:The pellet ablation mechanism is an interesting subject for plasma fuelling in fusion plasmas. In GAMMA 10/PDX, pellet injection experiments for higher density plasma production are planned to conduct detached plasma experiments in the higher density plasma condition. We measured the pellet ablation cloud by using the two-directional simultaneous photography system in GAMMA 10/PDX. The tomography reconstruction technique was used for considering the pellet trajectory in the plasma and pellet ablation. The three-dimensional pellet trajectory and pellet ablation images in the plasma were clearly obtained for the first time, to the best of our knowledge.
ISSN:0022-3778
1469-7807
DOI:10.1017/S0022377824000394