Superconducting magnets for generating uniform magnetic force field
Superconducting magnets for generating uniform magnetic force field
复制标题
用于产生均匀磁力场的超导磁体
DOI：
10.1109/77.783310
复制
发表时间：
1999
影响因子：
1.8
通讯作者：
M. Ataka
中科院分区：
文献类型：
--
作者：
T. Kiyoshi;O. Ozaki;H. Morita;H. Nakayama;Hong;H. Wada;N. I. Wakayama;M. Ataka
本文报道了高磁场在结构生物学中的新应用。我们通常设计和制造磁铁，以达到均匀的磁场和均匀的磁场梯度。在这个新的应用中，我们采用了均匀磁场。已经发现，蛋白质晶体的生长受到磁力存在的影响。日本国立金属研究所筑波磁体实验室正在开发均匀磁场磁体。这些磁铁是超导磁铁，因为它们必须连续运行数天才能生长蛋白质晶体。第一个用NbTi缠绕的磁铁目前正在安装中。该磁体在直径10mm、高度10mm的圆柱空间内产生240t /sup 2//m的均匀力场，磁场沿z方向波动优于0.4%。在液氦中，它可以达到设计电流。
We report a new application of high magnetic fields to structural biology. We usually design and fabricate a magnet to achieve uniform magnetic field as well as uniform magnetic field gradient. In this new application we adopt a uniform magnetic force field. It has been found that the growth of protein crystals is affected by the presence of magnetic force. Development of uniform magnetic force field magnets is now in progress at the Tsukuba Magnet Laboratory of the National Research Institute for Metals. These magnets are superconducting magnets because they must be continuously run for several days to grow protein crystals. The first magnet wound with NbTi is now under installation. This magnet is designed to generate a uniform force field of 240 T/sup 2//m in a cylindrical space of 10 mm in diameter and 10 mm in height, and the magnetic force field fluctuation along z-direction is better than 0.4%. In liquid helium, it could achieve the design current.