Patent ID: 7332726
Filing Date: 2008-02-19
Classification: C22C,G01T

Abstract:
1. An ionizing-radiation counting detector comprising: a first substrate; a second substrate generally parallel to said first substrate and forming a gap with said first substrate; a gas contained within said gap; at least one first electrode coupled to said second substrate; at least one second electrode electrically coupled to said first electrode; a first impedance coupled to said first electrode; a second impedance coupled to said second electrode; a power supply coupled to at least one of said electrodes; a first discharge event detector coupled to said first impedance; a second discharge event detector coupled to said second impedance; a plurality of pixels, each pixel capable of outputting a gas discharge pulse upon interaction with ionizing radiation; wherein each gas discharge pulse is counted as having approximately an equal value; and circuitry for detecting if a gas discharge pulse is output from the pixels, and for counting each gas discharge pulse as an individual event.