Patent ID: 9153416
Filing Date: 2015-10-06
Classification: G01N,H01J

Abstract:
1. A detector for a charged-particle beam system, the detector comprising: a scintillator for receiving a charged particle and emitting one or more photons in response to the impact of the charged particle; a voltage source for providing a voltage to the scintillator to attract charged particles; a multi-pixel photon counter for detecting light from the scintillator and providing an electric signal corresponding to the detected light; and a light guide composed of an electrically-insulating and optically-transparent material for conducting light from the scintillator to the multi-pixel photon counter and electrically insulating the multi-pixel photon counter from the voltage applied to the scintillator, the light guide partially matching the refractive indices of the scintillator and the multi-pixel photon counter.