不稳定性产生的可能机制是由于电子束穿过低密度本底等离子体的漂移速度超过离子声速而激发起来的。
It is suggested that the instability is excited in the low density plasma when the electron beam drift velocities exceed the ion acoustic speed.
采用高能量密度电子束进行了钛镀镍合金表面熔凝处理的研究。
High energy density electron beam is employed in surface rapid solidification on Ni plated ti alloy.
利用该系统可对电子束扫描轨迹、扫描频率以及加热区域电子束能量密度的分配进行离线编辑和在线调节。
The EB scanning track, scanning frequency and energy density distribution at heating zone could be programmed off-line and adjusted on-line.
针对X射线透射光栅摄谱仪中的高线密度光栅，研究了采用电子束曝光和X射线曝光技术结合制作高线密度X射线透射光栅的工艺技术。
The manufacture of high-line-density X-ray transmission gratings for X-ray spectroscopy by using electron beam lithography and X-ray lithography was reported.
在一定条件下，样品表面电位随着辐照电子束流密度和样品厚度的增加而增大；
The charging equilibration time constant decreases with the beam intensity and the thickness of the sample. The surface voltage decays slowly when the electron beam is cut off.
在一定条件下，样品表面电位随着辐照电子束流密度和样品厚度的增加而增大；
The charging equilibration time constant decreases with the beam intensity and the thickness of the sample. The surface voltage decays slowly when the electron beam is cut off.
应用推荐