Dynamics of recycling processes responding to the local particle and heat load perturbations on TRIAM-1M

H. Zushi; R. Bhattacharyay; M. Sakamoto; Y. Nozaki; K. Nakashima; M. Ogawa; K. Takaki; K. Hanada; H. Idei; K. Nakamura; K. Sasaki; Y. Hirooka; Y. Nakashima; S. Kado; T. Shikama

Dynamics of recycling processes responding to the local particle and heat load perturbations on TRIAM-1M

H. Zushi, R. Bhattacharyay, M. Sakamoto, Y. Nozaki, K. Nakashima, M. Ogawa, K. Takaki, K. Hanada, H. Idei, K. Nakamura, K. Sasaki, Y. Hirooka, Y. Nakashima, S. Kado, T. Shikama

Division of Nuclear Fusion Dynamics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A new diagnostic technique to study the global structure of the recycling among the plasma facing components PFCs has been proposed and tested using the three kinds of perturbations (gas puffing, transport oscillation, and localized heat deposition) at the frequency less than a few Hz . H_α intensities are measured at various toroidal and poloidal positions and FFT analysis shows that the propagation velocity of the neutral hydrogen in the toroidal direction is < 25 m/s for the gas puff modulation. For toroidally uniform transport oscillations, on the other hand, in-out asymmetry of recycling structure is found. The localized heat deposition causes the localized particle source distribution in the torus due to enhanced efflux of the hydrogen particles only fueled from the hot area.

Original language	English
Title of host publication	33rd EPS Conference on Plasma Physics 2006, EPS 2006 - Europhysics Conference Abstracts
Pages	1604-1607
Number of pages	4
Publication status	Published - 2006
Event	33rd European Physical Society Conference on Plasma Physics 2006, EPS 2006 - Rome, Italy Duration: Jun 19 2006 → Jun 23 2006

Publication series

Name	33rd EPS Conference on Plasma Physics 2006, EPS 2006
Volume	2

Other

Other	33rd European Physical Society Conference on Plasma Physics 2006, EPS 2006
Country/Territory	Italy
City	Rome
Period	6/19/06 → 6/23/06

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

Cite this

Zushi, H., Bhattacharyay, R., Sakamoto, M., Nozaki, Y., Nakashima, K., Ogawa, M., Takaki, K., Hanada, K., Idei, H., Nakamura, K., Sasaki, K., Hirooka, Y., Nakashima, Y., Kado, S., & Shikama, T. (2006). Dynamics of recycling processes responding to the local particle and heat load perturbations on TRIAM-1M. In 33rd EPS Conference on Plasma Physics 2006, EPS 2006 - Europhysics Conference Abstracts (pp. 1604-1607). (33rd EPS Conference on Plasma Physics 2006, EPS 2006; Vol. 2).

Dynamics of recycling processes responding to the local particle and heat load perturbations on TRIAM-1M. / Zushi, H.; Bhattacharyay, R.; Sakamoto, M. et al.
33rd EPS Conference on Plasma Physics 2006, EPS 2006 - Europhysics Conference Abstracts. 2006. p. 1604-1607 (33rd EPS Conference on Plasma Physics 2006, EPS 2006; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zushi, H, Bhattacharyay, R, Sakamoto, M, Nozaki, Y, Nakashima, K, Ogawa, M, Takaki, K, Hanada, K , Idei, H, Nakamura, K, Sasaki, K, Hirooka, Y, Nakashima, Y, Kado, S & Shikama, T 2006, Dynamics of recycling processes responding to the local particle and heat load perturbations on TRIAM-1M. in 33rd EPS Conference on Plasma Physics 2006, EPS 2006 - Europhysics Conference Abstracts. 33rd EPS Conference on Plasma Physics 2006, EPS 2006, vol. 2, pp. 1604-1607, 33rd European Physical Society Conference on Plasma Physics 2006, EPS 2006, Rome, Italy, 6/19/06.

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title = "Dynamics of recycling processes responding to the local particle and heat load perturbations on TRIAM-1M",

abstract = "A new diagnostic technique to study the global structure of the recycling among the plasma facing components PFCs has been proposed and tested using the three kinds of perturbations (gas puffing, transport oscillation, and localized heat deposition) at the frequency less than a few Hz . Hα intensities are measured at various toroidal and poloidal positions and FFT analysis shows that the propagation velocity of the neutral hydrogen in the toroidal direction is < 25 m/s for the gas puff modulation. For toroidally uniform transport oscillations, on the other hand, in-out asymmetry of recycling structure is found. The localized heat deposition causes the localized particle source distribution in the torus due to enhanced efflux of the hydrogen particles only fueled from the hot area.",

author = "H. Zushi and R. Bhattacharyay and M. Sakamoto and Y. Nozaki and K. Nakashima and M. Ogawa and K. Takaki and K. Hanada and H. Idei and K. Nakamura and K. Sasaki and Y. Hirooka and Y. Nakashima and S. Kado and T. Shikama",

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AU - Zushi, H.

AU - Bhattacharyay, R.

AU - Sakamoto, M.

AU - Nozaki, Y.

AU - Nakashima, K.

AU - Ogawa, M.

AU - Takaki, K.

AU - Hanada, K.

AU - Idei, H.

AU - Nakamura, K.

AU - Sasaki, K.

AU - Hirooka, Y.

AU - Nakashima, Y.

AU - Kado, S.

AU - Shikama, T.

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AB - A new diagnostic technique to study the global structure of the recycling among the plasma facing components PFCs has been proposed and tested using the three kinds of perturbations (gas puffing, transport oscillation, and localized heat deposition) at the frequency less than a few Hz . Hα intensities are measured at various toroidal and poloidal positions and FFT analysis shows that the propagation velocity of the neutral hydrogen in the toroidal direction is < 25 m/s for the gas puff modulation. For toroidally uniform transport oscillations, on the other hand, in-out asymmetry of recycling structure is found. The localized heat deposition causes the localized particle source distribution in the torus due to enhanced efflux of the hydrogen particles only fueled from the hot area.

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BT - 33rd EPS Conference on Plasma Physics 2006, EPS 2006 - Europhysics Conference Abstracts

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Y2 - 19 June 2006 through 23 June 2006

ER -

Dynamics of recycling processes responding to the local particle and heat load perturbations on TRIAM-1M

Abstract

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All Science Journal Classification (ASJC) codes

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