| 期刊全称 | (e,2e) & Related Processes | | 影响因子2023 | Colm T. Whelan,H. R. J. Walters,H. Ehrhardt | | 视频video | | | 学科分类 | Nato Science Series C: | | 图书封面 |  | | 影响因子 | An (e,2e) experiment is the measurement of an electron impactionization process where both the exiting electrons are detected incoincidence. Such measurements are almost at the limit of what can beknown, in quantum mechanical terms, and its description presents asubstantial theoretical challenge. There are at least two very goodreasons for studying (e,2e) and related processes. In the first placewe are now only beginning to understand the dynamics of the collisionprocess. The range and sophistication of present experiments allow usto identify kinematic regimes where delicate and subtle effects can beobserved, stretching current theories to their limit. Secondly, themultiple coincident technique offers us the possibility of ananalytical tool that could be used to probe the structure of thetarget, be it atom, molecule, thin film or surface. Measurements arenow being performed at threshold on H, on the inner shell levels of Auand Ag using projectiles at relativistic energies, with spin-polarizedelectrons on Li, on a myriad of molecules in symmetric, noncoplanarkinematics, and on He in a multitude of different geometries. Thetechnique has recently been extended to excitation ionization | | Pindex | Book 1993 |
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发表于 2025-3-21 19:53:20
