ROTATING FIELD CONFINEMENT OF PURE ELECTRON PLASMAS USING TRIVELPIECE-GOULD MODES
ROTATING FIELD CONFINEMENT OF PURE ELECTRON PLASMAS USING TRIVELPIECE-GOULD MODES
复制标题
使用三片-古尔德模式对纯电子等离子体进行旋转场限制
DOI：
10.1103/physrevlett.81.4875
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发表时间：
1998
影响因子：
8.6
通讯作者：
C. Driscoll
中科院分区：
文献类型：
--
作者：
F. Anderegg;E. Hollmann;C. Driscoll
在4特斯拉的Penning-Malmberg陷阱中，一个“旋转壁”电场给出了33109个电子柱的稳态约束。通过增加旋转驱动器的频率，中心密度压缩了20倍。对于偶极和四极驱动器（即mu - 1和2），压缩率取决于驱动频率，显示与kzfi - 0 Trivelpiece-Gould等离子体模式相关的峰值。驱动也会引起等离子体加热，但回旋辐射冷却使温度足够低，使得背景气体电离可以忽略不计。[s0031 - 9007 (98) 07771 - 0]
A “rotating wall” electric field is shown to give steady-state confinement of a column of 3 3 109 electrons in a Penning-Malmberg trap at 4 tesla. By increasing the frequency of the rotating drive, a central-density compression by a factor of 20 has been obtained. For both dipole and quadrupole drives (i.e., mu 1 and 2), the compression rate depends on drive frequency, exhibiting peaks associated with kz fi 0 Trivelpiece-Gould plasma modes. The drive also causes plasma heating, but cyclotron radiation cooling keeps the temperature low enough that background gas ionization is negligible. [S0031-9007(98)07771-0]