Abstract:
An electron beam sterilizing device, comprises: an electron-generating filament; a beam-shaper; an output window; a high-voltage supply, capable of creating a high-voltage potential between the electron-generating filament and the output window, for acceleration of electrons; a high-voltage supply for driving current through the electron-generating filament; a control unit for controlling the operation of the electron beam sterilizing device. The electron beam sterilizing device has at least three operational states which include: an OFF-state, where there is no drive current through the electron-generating filament; an ON-state, where the electron-generating filament is kept at a temperature above the emission temperature so as to generate electrons for sterilization; and a standby state, between the OFF-state and ON-state, where the electron-generating filament is kept at a predetermined temperature just below the emission temperature. The control unit controls the device to assume the standby state.
Abstract in simplified Chinese:一实施例系关于一种电子束设备,其包含用于发射一电子束之一双镜片电子枪。该电子束系一第一操作模式中之一高束流电子束及一第二操作模式中之一低束流电子束。该设备进一步包含一柱形孔径,其在该第一操作模式中拦截该高束流电子束之路径及在该第二操作模式中以该电子束设备之一光学轴为中心。另一实施例系关于一种电子枪,其包含一第一枪镜片、一限束孔径及一第二枪镜片。该第一枪镜片聚焦穿过该限束孔径之前之电子,而该第二枪镜片聚焦穿过该限束孔径之后之电子。本发明亦揭示其他实施例、态样及特征。