Magnetic plasma confinement for laser ion source.
Magnetic plasma confinement for laser ion source.
复制标题
激光离子源的磁等离子体约束。
DOI：
10.1063/1.3267312
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
R. Dabrowski
中科院分区：
文献类型：
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作者：
M. Okamura;A. Adeyemi;T. Kanesue;J. Tamura;K. Kondo;R. Dabrowski
激光离子源（LIS）可以容易地提供高电流束。然而，很难在保持高电流的同时获得更长的束脉冲。有时，某些应用需要更长的光束脉冲。例如，需要超过10微米的束脉冲来将高度带电的束注入到大尺寸的同步加速器。为了扩展束流脉冲宽度，在布鲁克海文国家实验室的LIS漂移空间施加螺线管场。螺线管场抑制了膨胀等离子体的发散角，使束流脉冲展宽。此外，它被观察到，等离子体状态后，通过几百高斯的480毫米长的螺线管字段保存。
A laser ion source (LIS) can easily provide a high current beam. However, it has been difficult to obtain a longer beam pulse while keeping a high current. On occasion, longer beam pulses are required by certain applications. For example, more than 10 micros of beam pulse is required for injecting highly charged beams to a large sized synchrotron. To extend beam pulse width, a solenoid field was applied at the drift space of the LIS at Brookhaven National Laboratory. The solenoid field suppressed the diverging angle of the expanding plasma and the beam pulse was widened. Also, it was observed that the plasma state was conserved after passing through a few hundred gauss of the 480 mm length solenoid field.