Autor: |
Kurita, Tetsuro, Nakagawa, Takahide, Kidera, Masanori, Miyazawa, Yoshitoshi, Hemmi, Masatake, Chiba, Toshiya, Inabe, Naohito, Kase, Masayuki, Kageyama, Tadashi, Kamigaito, Osamu, Goto, Akira, Yano, Yasushige |
Zdroj: |
Japanese Journal of Applied Physics; June 1999, Vol. 38 Issue: 6 p3707-3707, 1p |
Abstrakt: |
We successfully produced the intense beam of highly charged Kr ions using an electrode. Under the pulsed mode operation, we found that the depth of the plasma potential dip strongly depends on the duration of the microwave and takes about 40 ms to reach the equilibrium state. Taking these results into account, we compared the beam intensities of highly charged Kr ions with and without the use of an electrode under the pulsed mode operation. We observed that the density of highly charged Kr ions and ion confinement time increase with increasing mirror magnetic field strength. The plasma potential dip becomes shallower with insertion of the electrode. Consequently, when we increase the mirror magnetic field strength and insert the electrode into the plasma, the beam intensities of highly charged ions increase. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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