Analytic simulation research on steady-state characteristics of X-ray framing camera

Analytic method is employed to simulate courses of electronic transportation, collision and secondary emission in a MCP single channel. With the use of commercially available software Lorentz-2D, we obtain such curves as initial energy distribution of secondary electrons, electron energy distribution just before colliding with the channel wall, and electron transit time distribution. These simulation results can serve as references when developing a new framing camera or trying to improve its performance. MCP sensitivity is measured, compared with simulation results, it is found that first collision will actually affect the gain of MCP. Qualitative analysis shows that parameters like bias voltage make significant impacts on the depth of first collision. According to what is observed in sim