Patent ID: 9167677
Filing Date: 2015-10-20
Classification: H01J,H05G

Abstract:
1. A method of aging an x-ray generator, the x-ray generator having carbon nanotube electron emitters and including a cathode on which a plurality of electron emitters are formed, an anode facing the cathode, a target on the anode facing the plurality of electron emitters to emit an x-ray, a plurality of spacers on the cathode to expose the plurality of electron emitters, a gate electrode on the plurality of spacers, and charge prevention films covering the plurality of spacers, the method comprising: applying a desired substantially continuous anode voltage to the anode and maintaining a constant anode current formed by electrons generated from the electron emitters; and applying a direct current pulse voltage to the gate electrode to emit electrons from the electron emitters; wherein the maintaining the constant anode current includes reducing the anode voltage sequentially or in a stepwise manner.