Patent ID: 7696485

Claim:
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; at least one spacer to define said gap; 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 and defining at least one pixel with said first electrode; a first impedance coupled to said first electrode; a power supply coupled to at least one of said electrodes; a first discharge event detector circuitry coupled to at least one of said electrodes for detecting a gas discharge counting event in said electrode; 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.