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Parameters (electrons per packet; LaB6 tip size, and incident laser-spot size) used in the simulations of three distinct UEM operating modes.
| UEM mode | Electrons/packet | LaB6 tip diameter (μm) | Incident laser-spot size (μm) |
|---|---|---|---|
| Single-electron | 1 | 16 | 16 |
| Burst | 103 | 150 | 80 |
| Single-shot | 107 | 150 | 80 |
