Elucidation of electron transport control by using the magnetic filter and enhancement of HィイD1-ィエD1DィイD1-ィエD1 production in high frequency negative ion source

对电子环球共振（ECR）等离子体和无线电频率（RF）等离子体的生产和控制，负离子源已经被研究过。以下是一些调查结果：（1）H-D1 volume production is confirmed in ECR plasmas although the effect of the magnetic filter （MF） for Management plasma parameters is different from that in dc discharge plasmas。（2）在射频等离子体中， Te几乎减少了MF。射频稳定的潜力被观察到源区域，可能会影响MF在控制等离子体参数方面的作用。（3） Production and control of dc discharge plasmas for various gas species （i. e. Ar， NイイD22イエD2， He and HイD22イエD2） is studied。对MF和gas species的磁场强度的控制（i. e. ions）。（4）通过执行单尺寸静电粒子模拟，离子束的稳定性被观察到由MF分隔的不对称等离子体。

Production and control of both electron cyclotron resonance (ECR) plasmas and radio-frequency (RF) plasmas for negative ion sources have been studied. Findings are as follows :(1) HィイD1-ィエD1 volume production is confirmed in ECR plasmas although the effect of the magnetic filter (MF) for controlling plasma parameters is different from that in dc discharge plasmas.(2) In RF plasmas, Te is hardly reduced across the MF. The rf oscillating potentials are observed in the source region and may affect the role of MF for controlling plasma parameters.(3) Production and control of dc discharge plasmas for various gas species (i.e. Ar, NィイD22ィエD2, He and HィイD22ィエD2) is studied. Control of plasma parameters with the MF depends on the magnetic field intensity of the MF and gas species (i.e. ions).(4) By executing the one-dimensional electrostatic particle simulation, the ion beam instability is observed in the asymmetric plasmas divided by the MF.