PLASMA PANEL BASED RADIATION DETECTOR

摘要

A position-sensitive radiation counting detector includes a first and a second substrate. A gas is contained within the gap between the substrates. A photocathode layer is coupled to the first substrate and faces the second substrate. A first electrode is coupled to the second substrate and a second electrode is electrically coupled to the first electrode. A first impedance is coupled to the first electrode and a power supply is coupled to at least one electrode. A first discharge event detector is coupled to one of the electrodes for detecting a gas discharge event in the electrode. The radiation counting detector further includes a plurality of pixels, each capable of outputting a gas discharge counting event pulse upon interaction with radiation received from the photocathode. Each gas discharge pulse is counted as having an approximately equal value.

主权项

1. A position-sensitive neutron counting radiation detector comprising:
a first substrate; a second substrate generally parallel to said first substrate and forming a gap with said first substrate; a gas mixture of at least two components contained within said gap; at least one neutron conversion layer coupled to at least one of said substrates; at least one first electrode coupled to one of said substrates; at least one second electrode electrically coupled to 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 coupled to at least one of said electrodes for detecting a gas discharge counting event in said electrode; a plurality of pixels defined by said electrodes, each pixel capable of outputting a gas discharge counting event pulse upon interaction with ionizing particle radiation received from said neutron conversion layer, wherein each gas discharge pulse is counted as having an approximately equal value; and circuitry for detecting if a gas discharge counting event pulse is output from the pixels, and for counting each such gas discharge pulse as an individual event.