Quadrupole-induced resonant-particle transport in a pure electron plasma.
Quadrupole-induced resonant-particle transport in a pure electron plasma.
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纯电子等离子体中四极诱导的共振粒子输运。
DOI：
10.1063/1.1302125
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发表时间：
1999
影响因子：
8.6
通讯作者：
J. Fajans
中科院分区：
文献类型：
--
作者：
E. Gilson;J. Fajans
小的横向四极磁场会急剧降低马尔姆伯格-彭宁陷阱中非中性等离子体的限制。例如，只有 0.02 G/cm 的四极磁场使具有 100 G 轴向磁场的陷阱中的扩散速率加倍。较大的四极场会显着改变等离子体的形状。轨道共振时输运最大。这些结果对使用磁性四极中性原子陷阱来限制双阱正电子/反质子马尔姆伯格-彭宁陷阱中产生的反氢原子的计划产生了怀疑。
Small transverse magnetic quadrupole fields sharply degrade the confinement of non-neutral plasmas held in Malmberg-Penning traps. For example, a quadrupole magnetic field of only 0.02 G/cm doubles the diffusion rate in a trap with a 100 G axial magnetic field. Larger quadrupole fields noticeably change the shape of the plasma. The transport is greatest at an orbital resonance. These results cast doubt on plans to use magnetic quadrupole neutral atom traps to confine antihydrogen atoms created in double-well positron/antiproton Malmberg-Penning traps.