All issues
Successor
Volume 48 (1982)
- Issue 6 Pages 689-
- Issue 5 Pages 549-
- Issue 4 Pages 419-
- Issue 3 Pages 293-
- Issue 2 Pages 157-
- Issue 1 Pages 3-
Volume 48, Issue 4
Displaying 1-2 of 2 articles from this issue
- |<
- <
- 1
- >
- >|
-
Takeshi Ogasawara1982 Volume 48 Issue 4 Pages 419-441
Published: 1982
Released on J-STAGE: March 04, 2011
JOURNAL FREE ACCESSConceptual design studies of large scale tokamaks have made clear the need for superconducting pulse coils for ohmic heating of the plasma. The required pulsing rate is about 10 T/ sec. However, for small size tokamaks as are planned for the Reacting Plasma Project, the field ramp rate must be in excess of 100 T/ sec. Only few investigations have been done on the development of high current cabled superconductors and much more important, on the pulse coil themselves. In this review article, we describe superconducting pulse coils developed or under development in the United States and in Japan. The present R & D is insufficient for the design and construction of near future tokamak machines.View full abstractDownload PDF (2132K) -
Tetsuo Yamada, Katsumi Masugata, Kiyoshi Yatsui, Masao Matsui1982 Volume 48 Issue 4 Pages 443-452
Published: 1982
Released on J-STAGE: March 04, 2011
JOURNAL FREE ACCESSTransport of an intense pulsed proton beam has been experimentally investigated through a wall-stabilized plasma channel (1-m long) in the Nagaoka ETIGO-I. Proton beam of energy of 800-KeV is injected into the plasma channel.
The transport efficiency increases with increasing channel current or decreasing channel pressure, being in good agreement with the existing theory. Changing the timing between channel current and LIB injection, we have found that there exists a good timing for the LIB injection. In some cases, the transport ceases to exist probably due to some plasma instabilities.View full abstractDownload PDF (789K)
- |<
- <
- 1
- >
- >|