巻号一覧
後続誌
22 巻, 5 号
選択された号の論文の5件中1～5を表示しています
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毛利 明博, 松田 慎二郎, 井上 正敏, 宇尾 光治1969 年 22 巻 5 号 p. 277-295
発行日: 1969年
公開日: 2011/03/04
ジャーナル フリーThe plasma produced by a coaxial plasma gun is axially injected into a magnetic field having the property of minimum average B. This field is generated by the superposition of an usual mirror field upon the field produced by a current-carrying ring placed on the midplane of the mirror field. The injected plasma after 250μsec from the injection is so quiescent as the density fluctuation of 10-2 or less, though the drift wave instability exists at the plasma periphery, where the density gradient is fairly steep. The frequency spectrum of the instability has a peak at about 22 kHz and its perpendicular wave length is about 2 cm.
By inserting a glass cylinder just ins id the ring, above field becomes the Heliotron C type field. The plasma injected into this field is quite noisy and it decays faster than the plasma in the minimum average B field.抄録全体を表示PDF形式でダウンロード (1695K) -
中桶 悟光1969 年 22 巻 5 号 p. 296-307
発行日: 1969年
公開日: 2011/03/04
ジャーナル フリーThe paper describes that contact arc discharge of wire electrode was experimented in order to explode wire with much lower applied voltage than that in general wire explosion. The tip of wire electrode was gradually exploded in the range of appropriate length and high density plasma was produced in air at atmospheric pressure.
High speed framing photograph of the plasma was takenas well as general time integrated one.
The high density plasma was stable in the case that polarity of copper wire electrode was positive. On the contrary, the high density plasma was unstabe in the case that copper wire electrode had negative polarity, moreover it was found out that the wire was surrounded with lower density plasma.
Spectral image photograph was considered to be taken especially to investigate the spectroscopic space distribution of the lower density plasma. The image of ion spectrum of calcium contained in copper wire as impurity had remarkably different characteristics in space distribution and radiation strength from that of copper one.抄録全体を表示PDF形式でダウンロード (1754K) -
早川 正士, 大津 仁助, 岩井 章1969 年 22 巻 5 号 p. 308-322
発行日: 1969年
公開日: 2011/03/04
ジャーナル フリーThe purpose of this paper is to investigate the guiding mechanism of Alfven waves (Hydromagnetic whistlers) in the magnetosphere. The guiding of Alfven waves along the Earth's field aligned column in the magnetosphere is discussed by use of wave theory. The radial density distribution perpendicular to the magnetic field is assumed to be Gaussian and we use the method in which the fields are expanded into power series of the radial distance from the column axis. And the condition for trapping in the duct is discussed for enhanced-and depressed-duct. The existence of trapping frequency region which is closely related to the modulation factor, is demonstrated and the trapping duct width is also estimated.抄録全体を表示PDF形式でダウンロード (886K) -
Formation and Developement of Shock Waves in a Non-uniform Duct浅野 功義1969 年 22 巻 5 号 p. 323-347
発行日: 1969年
公開日: 2011/03/04
ジャーナル フリーPDF形式でダウンロード (1825K) -
1969 年 22 巻 5 号 p. e1
発行日: 1969年
公開日: 2011/03/04
ジャーナル フリーPDF形式でダウンロード (44K)
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