A measurement of light intensity and quantum yield in photoelectron emission from satellite surface materials in the 30–250-nm range

摘要

We studied the measurement of photoelectron emission (PE) of metal and insulating materials used for thermal insulation on satellites or other such purposes. The PE measurement is very important for analyzing charge accumulation on satellite surfaces in a space environment because photoelectron emission is related to the amount of surface charge. Based on these photoemission characteristics, we deduce that the risk of electrostatic discharge for a satellite in the day position is lower than that in the night position.