使用铜靶X射线管产生的高能量X射线对其气体放大倍数，电荷传输效率，增益稳定性进行测试。

The effective gain and stability properties of the double-GEM gas detector are measured by high intensive X-ray source (Cu-target, 8.9keV).

youdao

在自由电荷传输模型的基础上得到了电荷耦合器件电荷传输效率的表达式，编制了电荷耦合器件电荷传输效率优化设计软件。

Based on the free charge transfer model the expression of the charge transfer efficiency in CCD is obtained, and the software for improving the charge transfer efficiency in CCD is programmed.

youdao