Soft x-ray emission from the gas-puff z-pinch plasma produced by an inductive pulsed power generator

K. Imasaka, S. Hara, Y. Kawauchi, K. Kawazoe, Junya Suehiro, M. Hara

研究成果: 会議への寄与タイプ論文

2 引用 (Scopus)

抄録

Inductive pulsed power generator which has copper wire fuses used as an opening switch has been developed at Kyushu University for a power source of gas-puff z-pinch. The inductive pulsed power generator has a capacitor of 11μF and 19.8kJ as a primary energy source and can supply a driving current with rising time of about 200ns to the gas-puff z-pinch plasma. Experiments with fast bank and inductive pulsed power methods are performed to investigate characteristics of gas-puff z-pinch plasmas. Obtained results show that the intensity of soft x-ray decreases gradually with a delay time which is the time difference between beginning of coil current from a gas-puff actuator and that of generator current in both methods. From the observation of hot spots recorded with two pin-hole cameras arranged at right angles each other, it is found that the hot spots tend to align on the central axis between electrodes with increase of rising rate of plasma current. Behavior of imploding cylindrical plasma depend on the rising rate of plasma current. Especially, sausage instability in the pinching plasma along the axis becomes predominant in case of higher rising rate of current by the inductive pulsed power method and the faster current leads to spatially confined distributions of hot spots appearance shot to shot.

元の言語英語
ページ845-850
ページ数6
出版物ステータス出版済み - 12 1 1997
イベントProceedings of the 1997 11th International Pulsed Power Conference. Part 2 (of 2) - Baltimore, MD, USA
継続期間: 6 29 19977 2 1997

その他

その他Proceedings of the 1997 11th International Pulsed Power Conference. Part 2 (of 2)
Baltimore, MD, USA
期間6/29/977/2/97

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Plasmas
X rays
Gases
Pinhole cameras
Electric generators
Plasma stability
Electric fuses
Time delay
Capacitors
Actuators
Switches
Wire
Copper
Electrodes
Experiments

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

これを引用

Imasaka, K., Hara, S., Kawauchi, Y., Kawazoe, K., Suehiro, J., & Hara, M. (1997). Soft x-ray emission from the gas-puff z-pinch plasma produced by an inductive pulsed power generator. 845-850. 論文発表場所 Proceedings of the 1997 11th International Pulsed Power Conference. Part 2 (of 2), Baltimore, MD, USA, .

Soft x-ray emission from the gas-puff z-pinch plasma produced by an inductive pulsed power generator. / Imasaka, K.; Hara, S.; Kawauchi, Y.; Kawazoe, K.; Suehiro, Junya; Hara, M.

1997. 845-850 論文発表場所 Proceedings of the 1997 11th International Pulsed Power Conference. Part 2 (of 2), Baltimore, MD, USA, .

研究成果: 会議への寄与タイプ論文

Imasaka, K, Hara, S, Kawauchi, Y, Kawazoe, K, Suehiro, J & Hara, M 1997, 'Soft x-ray emission from the gas-puff z-pinch plasma produced by an inductive pulsed power generator' 論文発表場所 Proceedings of the 1997 11th International Pulsed Power Conference. Part 2 (of 2), Baltimore, MD, USA, 6/29/97 - 7/2/97, pp. 845-850.
Imasaka K, Hara S, Kawauchi Y, Kawazoe K, Suehiro J, Hara M. Soft x-ray emission from the gas-puff z-pinch plasma produced by an inductive pulsed power generator. 1997. 論文発表場所 Proceedings of the 1997 11th International Pulsed Power Conference. Part 2 (of 2), Baltimore, MD, USA, .
Imasaka, K. ; Hara, S. ; Kawauchi, Y. ; Kawazoe, K. ; Suehiro, Junya ; Hara, M. / Soft x-ray emission from the gas-puff z-pinch plasma produced by an inductive pulsed power generator. 論文発表場所 Proceedings of the 1997 11th International Pulsed Power Conference. Part 2 (of 2), Baltimore, MD, USA, .6 p.
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abstract = "Inductive pulsed power generator which has copper wire fuses used as an opening switch has been developed at Kyushu University for a power source of gas-puff z-pinch. The inductive pulsed power generator has a capacitor of 11μF and 19.8kJ as a primary energy source and can supply a driving current with rising time of about 200ns to the gas-puff z-pinch plasma. Experiments with fast bank and inductive pulsed power methods are performed to investigate characteristics of gas-puff z-pinch plasmas. Obtained results show that the intensity of soft x-ray decreases gradually with a delay time which is the time difference between beginning of coil current from a gas-puff actuator and that of generator current in both methods. From the observation of hot spots recorded with two pin-hole cameras arranged at right angles each other, it is found that the hot spots tend to align on the central axis between electrodes with increase of rising rate of plasma current. Behavior of imploding cylindrical plasma depend on the rising rate of plasma current. Especially, sausage instability in the pinching plasma along the axis becomes predominant in case of higher rising rate of current by the inductive pulsed power method and the faster current leads to spatially confined distributions of hot spots appearance shot to shot.",
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AU - Hara, S.

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AU - Suehiro, Junya

AU - Hara, M.

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