O. Motojima

Details der Publikationsliste

Zeitraum

2000 - 2009

Anzahl

80

Co-Autoren

Impurity control in helical reactor. (2008)

Igitkhanov, Yu., Sagara, A., Murakami, S., Sudo, S., Motojima, O.

Development of Physics and Technology of Stellarators/Heliotrons en route to DEMO : 18th Internat.Toki, Conf., Toki City, J, December 9-12, 2008

Assessment of impurity concentration in the helical reactor FFHR. (2008)

Igitkhanov, Yu., Sagara, A., Murakami, S., Sudo, S., Motojima, O.

Development of Physics and Technology of Stellarators/Heliotrons en route to DEMO : 18th Internat.Toki, Conf., Toki City, J, December 9-12, 2008

Construction of the Central Control System for the Large Helical Device (LHD) Fusion Experiment (2007)

K. Yamazaki, H. Yamada, K. Y. Watanabe, K. Nishimura, S. Yamaguchi, M. Shoji, ...

The world’s largest superconducting helical fusion facility, the Large Helical Device (LHD), is in the final stage of the 8-year construction schedule at the National Institute for Fusion Science...

Overview of confinement and MHD stability in the Large Helical Device (2005)

Motojima,O., Ida,K., Watanabe,K. Y., Nagayama,Y., Komori,A., Morisaki,T., ...

This article based on the 2004 Fusion Energy Conference contributions (Vilamoura, Portugal, 1-6 November 2004)

Extension and its characteristics of ECRH plasma in the LHD (2004)

Kubo, Shin, Shimozuma, T., Yoshimura, Y., Notake, T., Inagaki, S., Yokoyama, M., ...

One of the main objectives of the LHD is to extend the plasma confinement database for helical systems and to demonstrate such extended plasma confinement properties to be sustained in steady state....

Extension and its characteristics of ECRH plasma in the LHD (2004)

Kubo, Shin, Shimozuma, T., Yoshimura, Y., Notake, T., Inagaki, S., Yokoyama, M., ...

One of the main objectives of the LHD is to extend the plasma confinement database for helical systems and to demonstrate such extended plasma confinement properties to be sustained in steady state....

Extension and its characteristics of ECRH plasma in the LHD (2004)

Kubo, Shin, Shimozuma, T., Yoshimura, Y., Notake, T., Idei, H., Inagaki, S., ...

One of the main objectives of the LHD is to extend the plasma confinement database for helical systems and to demonstrate such extended plasma confinement properties to be sustained in steady state....

Extension and its characteristics of ECRH plasma in the LHD (2004)

Kubo, Shin, Shimozuma, T., Yoshimura, Y., Notake, T., Idei, H., Inagaki, S., ...

One of the main objectives of the LHD is to extend the plasma confinement database for helical systems and to demonstrate such extended plasma confinement properties to be sustained in steady state....

Extension and its characteristics of ECRH plasma in the LHD (2004)

Kubo, Shin, Shimozuma, T., Yoshimura, Y., Notake, T., Inagaki, S., Yokoyama, M., ...

One of the main objectives of the LHD is to extend the plasma confinement database for helical systems and to demonstrate such extended plasma confinement properties to be sustained in steady state....

Extension and its characteristics of ECRH plasma in the LHD (2004)

Kubo, Shin, Shimozuma, T., Yoshimura, Y., Notake, T., Idei, H., Inagaki, S., ...

One of the main objectives of the LHD is to extend the plasma confinement database for helical systems and to demonstrate such extended plasma confinement properties to be sustained in steady state....

Extension and its characteristics of ECRH plasma in the LHD (2004)

Kubo, Shin, Shimozuma, T., Yoshimura, Y., Notake, T., Idei, H., Inagaki, S., ...

One of the main objectives of the LHD is to extend the plasma confinement database for helical systems and to demonstrate such extended plasma confinement properties to be sustained in steady state....

Extension and its characteristics of ECRH plasma in the LHD (2004)

Kubo, Shin, Shimozuma, T., Yoshimura, Y., Notake, T., Inagaki, S., Yokoyama, M., ...

One of the main objectives of the LHD is to extend the plasma confinement database for helical systems and to demonstrate such extended plasma confinement properties to be sustained in steady state....

Review on the progress of the LHD experiment (2004)

Motojima, O., Yamada, H., Komori, A., Watanabe, K. Y., Mutoh, T., Takeiri, Y., ...

Recent progress in the Large Helical Device (LHD) experiment during the last 2 yr is reviewed. The LHD has been extending its operational regime toward fusion-relevant conditions while taking...

Characterization of dust collected from ASDEX-Upgrade and LHD (2003)

Sharpe,J. P., Rohde,V., Sagara,A., Suzuki,H., Komori,A., ...

Dust has been collected and analyzed from Axial Symmetric Divertor Experiment-Upgrade (ASDEX-Upgrade) and the Large Helical Device (LHD). A total quantity of 984.4 mg of dust was collected from...

The effect of magnetic field modification on heavy ion movement in advanced stellarators and helical devices (2003)

Shishkin,A., Shyshkin,O., Wobig,H., Igitkhanov,Yu., Motojima,O., Morimoto,S., ...

Two new physics mechanisms that can be used to shield and exhaust the impurity ions in the toroidal magnetic traps with the rotational transform from the external current coils are considered here....

A demonstration of magnetic field optimization in LHD (2003)

Murakami,S., Yamada,H., Wakasa,A., Sasao,M., Isobe,M., Ozaki,T., ...

The behaviors of trapped particles in helical ripples are complicated and would enhance the radial transport of energetic particles and thermal plasma (neoclassical transport) in heliotrons. Thus the...

MHD instabilities and their effects on plasma confinement in the large helical device plasmas (2003)

Toi,K., Ohdachi,S., Yamamoto,S., Nakajima,N., Sakakibara,S., Watanabe,K. Y., ...

MHD stability of NBI heated plasmas and impacts of MHD modes on plasma confinement are intensively studied in the Large Helical Device (LHD). Three characteristic MHD instabilities were observed,...

Characterization of dust collected from ASDEX-Upgrade and LHD (2003)

Sharpe, J. P., Rohde, V., ASDEX Upgrade Team, Sagara, A., Suzuki, H., Komori, A., ...

Dust has been collected and analyzed from Axial Symmetric Divertor Experiment-Upgrade (ASDEX-Upgrade) and the Large Helical Device (LHD). A total quantity of 984.4 mg of dust was collected from...

The effect of magnetic field modification on heavy ion movement in advanced stellarators and helical devices (2003)

Shishkin, A., Shyshkin, O., Wobig, H., Igitkhanov, Y., Motojima, O., Morimoto, S., ...

Two new physics mechanisms that can be used to shield and exhaust the impurity ions in the toroidal magnetic traps with the rotational transform from the external current coils are considered here....

A demonstration of magnetic field optimization in LHD (2003)

Murakami, S., Yamada, H., Wakasa, A., Sasao, M., Isobe, M., Ozaki, T., ...

The behaviors of trapped particles in helical ripples are complicated and would enhance the radial transport of energetic particles and thermal plasma (neoclassical transport) in heliotrons. Thus the...

MHD instabilities and their effects on plasma confinement in the large helical device plasmas (2003)

Toi, K., Ohdachi, S., Yamamoto, S., Nakajima, N., Sakakibara, S., Watanabe, K. Y., ...

MHD stability of NBI heated plasmas and impacts of MHD modes on plasma confinement are intensively studied in the Large Helical Device (LHD). Three characteristic MHD instabilities were observed,...

Impact of heat deposition profile on global confinement of NBI heated plasmas in the LHD (2003)

Yamada, H., Murakami, S., Yamazaki, K., Kaneko, O., Miyazawa, J., Sakamoto, R., ...

Energy confinement and heat transport of net-current-free NBI heated plasmas in the large helical device (LHD) are discussed with emphasis on density and power deposition profile dependences....

Recent advances in the LHD experiment (2003)

Motojima, O., Ohyabu, N., Komori, A., Kaneko, O., Yamada, H., Kawahata, K., ...

In the first four years of the LHD experiment, several encouraging results have emerged, the most significant of which is that MHD stability and good transport are compatible in the inward shifted...

Study of acceleration and confinement of high-energy protons during ICRF and NBI heating in LHD using a natural diamond detector (2002)

Krasilnikov,A. V., Sasao,M., Isobe,M., Kumazawa,R., Mutoh,T., Takeiri,Y., ...

Energetic tail formation by ion-cyclotron-range-of-frequencies (ICRF) heating was studied in the large helical device (LHD), by measuring high-energy charge-exchange atom spectra with a specially...

Study of acceleration and confinement of high-energy protons during ICRF and NBI heating in LHD using a natural diamond detector (2002)

Krasilnikov, A. V., Sasao, M., Isobe, M., Kumazawa, R., Mutoh, T., Takeiri, Y., ...

Energetic tail formation by ion-cyclotron-range-of-frequencies (ICRF) heating was studied in the large helical device (LHD), by measuring high-energy charge-exchange atom spectra with a specially...

Configuration flexibility and extended regimes in Large Helical Device (2001)

Yamada, H., Komori, A., Ohyabu, N., Kaneko, O., Kawahata, K., Watanabe, K. Y., ...

Recent experimental results in the Large Helical Device have indicated that a large pressure gradient can be formed beyond the stability criterion for the Mercier (high-n) mode. While the stability...

MHD characteristics in the high beta regime of the Large Helical Device (2001)

Sakakibara, S., Yamada, H., Watanabe, K., Narushima, Y., Toi, K., Ohdachi, S., ...

The highest volume averaged beta values beta (t) of 2.2% at B-t = 0.75 T (gas puff) and 2.4% at D-t = 1.3 T (pellet) in helical devices have been achieved in LHD. The beta (t) dependence of MHD...