Patent ID: 8941072
Filing Date: 2015-01-27
Classification: G01T,H01J,H01L

Abstract:
1. A radiation detector for detecting X-rays and electrons incident on a surface, the detector comprising a Silicon Drift Diode, a voltage/current converter between an I/O port and the anode, a switch configured to selectively connect the voltage/current converter, as a result of which the Silicon Drift Diode is equipped to switchably operate in a pulse height measurement mode or a current measurement mode, a surface sensitive to radiation disposed opposite to a surface on which the anode is formed, an active volume close to the surface sensitive to radiation, a distance of the active volume to the surface sensitive to radiation sufficiently small for electrons with an energy as low as 20 keV to penetrate to the active volume and generate electron/hole pairs in the active volume, as a result of which the detector can selectively be used as a detector for detecting X-rays incident on the surface in the pulse height measurement mode or as a detector for detecting electrons incident on the surface in the current measurement mode.