| 1. | In contrast with conventional thermo - ionic cathode , field emitter array ( fea ) cathode has many special advantages , such as room - temperature operation without a cathode heater , high current density , low power dissipation , excellent on / off isolation characteristics and instant turn - on characteristics
与传统的热阴极相比,场发射阵列阴极具有许多独特的优点,如无需加热,可以在室温下工作;电流密度比热阴极高几个数量级,并可工作在低电压调制下;功耗低;极好的开关特性;可瞬时启动等。 |
