Patent ID: 7227143
Filing Date: 2007-06-05
Classification: G01N,H01J

Abstract:
1. An X-ray detecting device having an X-ray detector to detect X-rays emitted from a sample, the X-ray detecting device comprising: a collimator to collimate X-rays emitted from the sample; an electron trap to remove some of the electrons included in the collimated X-rays; a window to transmit the X-rays and defining an interior space of the X-ray detector; a crystal to receive the X-rays which pass through the window and to generate a corresponding electric current; a field effect transistor to generate a signal in response to the electric current associated with the crystal; and a vacuum pump to create a vacuum within the interior of the X-ray detector enclosing the field effect transistor and the crystal to suppress noise associated with at least one of the crystal or the field effect transistor, wherein the vacuum pump comprises a turbo molecular pump (TMP).