The 4X Source

The 4X Source
复制标题

4X 源

DOI:
10.1109/tns.1985.4333727
复制
发表时间:
1985
影响因子:
1.8
通讯作者:
Joseph D. Sherman
Joseph D. Sherman
中科院分区:
工程技术3区
文献类型:
--
作者:
H. Vernon Smith;P. Allison;Joseph D. Sherman

文献摘要

被引文献

相似文献

我们的潘宁表面等离子体源(SPS)放电室在两个维度上扩大了4倍。迄今为止,已经研究了三种脉冲放电模式:两种具有噪声电弧(H电流波动为<$20%),一种具有静态电弧(H电流波动为<$1%)。较低的电弧磁场和较高的H2气流允许从噪声模式切换到静态模式。噪声模式产生高达120 mA的29 keV H束;对于29 keV的110 mA,二维归一化均方根发射度为0.017 x 0.018 ²·cm·mrad。静态模式产生75 mA的29 keV H束;对于24 keV的67 mA,发射度为0.011 x 0.012 <$·cm·mrad。
Our Penning surface-plasma source (SPS) discharge chamber was enlarged 4X in two dimensions. To date, three pulsed discharge modes have been studied: two with noisy arc (¿20% H- current fluctuations) and one with quiescent arc (¿1% H- current fluctuations). Lower arc magnetic field and higher H2 gas flow allow switching from the noisy to the quiescent mode. The noisy modes yield up to 120 mA of 29-keV H- beam; for 110 mA at 29 keV, the two-dimensional normalized rms emittance is 0.017 x 0.018 ¿·cm·mrad. The quiescent mode yields 75 mA of 29-keV H- beam; for 67 mA at 24 keV, the emittance is 0.011 x 0.012 ¿·cm·mrad.