Patent ID: 9142383
Filing Date: 2015-09-22
Classification: H01J

Abstract:
1. A target for generating X-rays, the target comprising: a target layer configured to generate X-rays when electron beam electrons enter the target layer, the target layer having a thickness selected so that at least some electron beam electrons pass through the target layer; a first conductive layer electrically coupled to the at least one monitor layer; a second conductive layer electrically coupled to the at least one monitor layer; a power supply configured to provide a voltage bias between the first conductive layer and the second conductive layer; and at least one monitor layer disposed between the first conductive layer and the second conductive layer and adjacent to the target layer so that at least some of the electron beam electrons that pass through the target layer enter the at least one monitor layer, the at least one monitor layer being configured such that the electron beam electrons that enter the at least one monitor layer produce secondary ionization charges with secondary electrons and holes that, in the presence of the voltage bias between the first conductive layer and the second conductive layer, produce a measurable current in the monitor layer.