首页>
外国专利>
METHOD FOR DETERMINING AN OPERATIONAL CONDITION OF A THERMAL FIELD ELECTRON EMITTER, A METHOD FOR OPERATING THE THERMAL FIELD ELECTRON EMITTER AND AN ELECTRON BEAM UTILIZING SYSTEM HAVING THE THERMAL FIELD ELECTRON EMITTER
METHOD FOR DETERMINING AN OPERATIONAL CONDITION OF A THERMAL FIELD ELECTRON EMITTER, A METHOD FOR OPERATING THE THERMAL FIELD ELECTRON EMITTER AND AN ELECTRON BEAM UTILIZING SYSTEM HAVING THE THERMAL FIELD ELECTRON EMITTER
An S/N ratio of a probe current is measured while a filament current is changed, and the filament current in which the S/N ratio is maximal is determined.
展开▼