Fig. 1. Working principle of electrostatic focusing pulse-dilation framing camera. (a) Pulse-dilation principle; (b) on-axis potential and electric field distribution; (c) on-axis potential and its SDP; (d) electron beam trajectory

Fig. 2. Dynamic characteristics of electron pulse in electrostatic focusing pulse-dilation framing camera. (a) On-axis electric field distribution; (b) dynamic radius; (c) dynamic time width; (d) dynamic electron density

Fig. 3. Electric field distributions of different intervals of lenses. (a) On-axis electric field; (b) electric field of 25 mm off-axis

Fig. 4. Dynamic radii of electron pulses of different electric field distributions. (a) On-axis; (b) 25 mm of off-axis; (c) mean relative errors between dynamic radii of different off-axis positions and maximal radii

Fig. 5. Analysis of space charge effect in different electric field distributions. (a) Temporal dispersion; (b) spatial dispersion