例文
- Electrons can attain this necessary energy to escape the SCL of the plasma sheath if an accelerated grid, or electron gun, is used.
- Here, ? is the electron gun assembly ( EGA ) efficiency ( ~ 0.97 in TSS-1 ), ? is the perveance of the EGA ( 7.2 micropervs in TSS-1 ), ?V tc is the voltage across the accelerating grid of the EGA, and " I " " t " is the emitted current.