排序方式： 共有22条查询结果，搜索用时 0 毫秒
21.
This paper shows the evolution of density and temperature of multi-charged ions in an electron beam ion trap (EBIT). Three cases are studied: the continuous neutral gas injection, ion source injection, and evaporative cooling. The effects of the neutral gas density, axial potential, and the beam current density on the ions evolution are discussed. 相似文献
22.
Summary Graft copolymers were obtained by the interaction of polymethyl methacrylate with heterochain polyesters, their properties were studied and a hypothesis was put forward on their structure.The thermomechanical curves and x-ray pictures were obtained in the laboratories directed by G. L. Slonimskii and A. I. Kitaigorodskii, to whom we express our sincere thanks. 相似文献