Hall A S, Alford N M, Button T W, Gilderdale D J, Gehring K A, Young I R
GEC Hirst Research Centre, Wembley, United Kingdom.
Magn Reson Med. 1991 Aug;20(2):340-3. doi: 10.1002/mrm.1910200218.
A planar YBa2Cu3Ox (YBCO) coil has been used as a pick-up coil in a nuclear magnetic resonance imager. It was found that the quality factor (Q) of the YBCO coil was greater than its copper counterpart by approaching 50% even in a field of 0.15 T. The Q of the copper coil at 77 K and in a field of 0.15 T was 1200 while that of the YBCO coil under identical conditions was 1700.
一个平面YBa2Cu3Ox(YBCO)线圈已被用作核磁共振成像仪中的拾取线圈。结果发现,即使在0.15T的磁场中,YBCO线圈的品质因数(Q)也比铜质线圈高出近50%。在77K和0.15T的磁场中,铜质线圈的Q值为1200,而在相同条件下YBCO线圈的Q值为1700。