Results on the superconducting magnet system for the Large Helical Device
Results on the superconducting magnet system for the Large Helical Device
复制标题
大型螺旋装置超导磁体系统的结果
DOI：
10.1109/77.828306
复制
发表时间：
2000
影响因子：
1.8
通讯作者：
O. Motojima
中科院分区：
文献类型：
--
作者：
T. Satow;S. Imagawa;N. Yanagi;K. Takahata;T. Mito;S. Yamada;H. Chikaraishi;A. Nishimura;S. Satoh;O. Motojima
大型螺旋装置（LHD）是一种具有8个超导线圈的等离子体物理实验装置。LHD的设计和建造始于1990年4月。1998年3月30日，历时8年的铲运机第一期工程按原计划完成了试运行和首次等离子体放电。1998年8月至1999年1月进行了第二次实验活动和几次激发试验。对铲运机超导磁体系统的主要试验结果如下：（1）铲运机线圈和支撑结构的冷却时间为23天。铲运机低温系统成功运行6400小时，证明了其高可靠性。(2)尽管一个螺旋线圈的内部线圈引线和内部块在11.45 kA的螺旋电流下引起两级连续正常传播，但在下一次激励测试中，它们在超导状态下被激励到相同的电流。(3)所有六个极向线圈都被稳定地激励。(4)9条长497 m的柔性超导母线线路安全稳定运行。在第三次实验活动中，进行了高达2.9 T等离子体场的许多等离子体放电测试。
The Large Helical Device (LHD) is a plasma physics experimental device with eight superconducting coils. Design and construction of LHD started in April 1990. The trial operation and the first plasma discharge of the eight-year Phase I project for LHD were finished on the last day of March 1998 as initially planned. The second experimental campaign and several excitation tests were conducted from August 1998 to January 1999. Major test results on the superconducting magnet system for LHD are as follows: (1) The cooldown time of the LHD coils and support structure was 23 days. The LHD cryogenic system succeeded in 6400-hour operation and proved its high reliability. (2) Although the inside coil lead and the inner block of one helical coil caused two-stage successive normal propagation at a helical current of 11.45 kA, they were energized to the same current in the superconducting state in the next excitation test. (3) All six poloidal coils were excited stably. (4) Nine flexible superconducting bus-lines with a total length of 497 m were operated stably and safely. In the third experimental campaign many plasma discharge tests up to a plasma field of 2.9 T were carried out.