Patent application number | Description | Published |
20080210878 | Plasma Panel Based Radiation Detector - A radiation counting detector includes a first substrate and a second substrate that is generally parallel to first substrate and forms a gap with the first substrate. A gas is contained within the gap. A photocathode layer is coupled to one side of 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 second impedance is coupled to the second electrode. A power supply is coupled to at least one of the electrodes. A first discharge event detector is coupled to the first impedance and a second discharge event detector is coupled to the second impedance. The radiation counting detector further includes a plurality of pixels, each capable of outputting a gas discharge pulse upon interaction with radiation received from the photocathode. Each gas discharge pulse is counted as having an approximately equal value. The radiation counting detector further includes circuitry for detecting if a gas discharge pulse is output from the pixels, and for counting each gas discharge pulse as an individual event. | 09-04-2008 |
20090166548 | DUAL SUBSTRATE PLASMA PANEL BASED IONIZING RADIATION DETECTOR - A plasma panel based ionizing-photon radiation detector includes an input and output substrate with gamma-ray to free-electron conversion occurring primarily on the input plate and a sealed discharge gas between the substrates. X-electrodes and Y-electrodes are formed on the two substrates and configured to form a plurality of pixels. Impedances are coupled to the X and Y electrodes and a power supply is coupled to the X-electrodes. Discharge event detectors coupled to impedances detect discharge events on the Y electrodes and at the pixel locations, which leads to the detection of ionizing-photon radiation. | 07-02-2009 |
20090206267 | PLASMA PANEL BASED IONIZING RADIATION DETECTOR - A radiation detector is formed from a plasma panel that includes a front substrate, and a back substrate that forms a generally parallel gap with the front substrate. X (column) and Y (row) electrodes are coupled by gas discharge events to define one or more pixels. Impedances are coupled to the X and Y electrodes, and a power supply is coupled to one or both types of electrodes. Discharge event detectors are coupled to the impedances. | 08-20-2009 |
20090278053 | PLASMA PANEL BASED IONIZING-PHOTON RADIATION DETECTOR - A plasma panel based ionizing-photon radiation detector includes an input and output substrate with gamma-ray to free-electron conversion occurring primarily on the input plate and a sealed discharge gas between the substrates. X-electrodes and Y-electrodes are formed on the two substrates and configured to form a plurality of pixels. Impedances are coupled to the X and Y electrodes and a power supply is coupled to the X-electrodes. Discharge event detectors coupled to impedances detect discharge events on the Y electrodes and at the pixel locations, which leads to the detection of ionizing-photon radiation. | 11-12-2009 |
20100155616 | PLASMA PANEL BASED RADIATION DETECTOR - A radiation counting detector includes a first substrate and a second substrate that is generally parallel to first substrate and forms a gap with the first substrate. A gas is contained within the gap. A photocathode layer is coupled to one side of 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 second impedance is coupled to the second electrode. A power supply is coupled to at least one of the electrodes. A first discharge event detector is coupled to the first impedance and a second discharge event detector is coupled to the second impedance. The radiation counting detector further includes a plurality of pixels, each capable of outputting a gas discharge pulse upon interaction with radiation received from the photocathode. Each gas discharge pulse is counted as having an approximately equal value. The radiation counting detector further includes circuitry for detecting if a gas discharge pulse is output from the pixels, and for counting each gas discharge pulse as an individual event. | 06-24-2010 |
20100187431 | PLASMA PANEL BASED IONIZING RADIATION DETECTOR - A radiation detector is formed from a plasma panel that includes a front substrate, and a back substrate that forms a generally parallel gap with the front substrate. X (column) and Y (row) electrodes are coupled by gas discharge events to define one or more pixels. Impedances are coupled to the X and Y electrodes, and a power supply is coupled to one or both types of electrodes. Discharge event detectors are coupled to the impedances. | 07-29-2010 |
20100265078 | PLASMA PANEL BASED IONIZING-PARTICLE RADIATION DETECTOR - A plasma panel based ionizing-particle radiation detector includes a first substrate and a second substrate coupled to the first substrate by a hermetic seal. The second substrate is an ultra-thin substrate. The detector further includes a discharge gas between the first and second substrate and at least one second electrode electrically coupled to a first electrode and defining at least one pixel with the first electrode. The second electrode is coupled to the first substrate and a first impedance is coupled to the first electrode. The detector further includes a power supply coupled to at least the first or second electrode and a first discharge event detector circuitry is coupled to at least one of the first or second electrodes for detecting a gas discharge counting event in the electrode. The detector further includes a plurality of pixels, each pixel capable of outputting a gas discharge pulse upon interaction with ionizing-radiation. Each gas discharge pulse is counted by the detector as having approximately an equal value and circuitry detects if a gas discharge pulse is output from the pixels, and counts each gas discharge pulse as an individual event. | 10-21-2010 |
20110309261 | PLASMA PANEL BASED IONIZING RADIATION DETECTOR - A radiation detector is formed from a plasma panel that includes a front substrate, and a back substrate that forms a generally parallel gap with the front substrate. X (column) and Y (row) electrodes are coupled by gas discharge events to define one or more pixels. Impedances are coupled to the X and Y electrodes, and a power supply is coupled to one or both types of electrodes. Discharge event detectors are coupled to the impedances. | 12-22-2011 |
20120205548 | PLASMA PANEL BASED RADIATION DETECTOR - 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 one side of 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 second impedance is coupled to the second electrode. A power supply is coupled to at least one electrode. A first discharge event detector is coupled to the first impedance and a second discharge event detector is coupled to the second impedance. The radiation counting detector further includes a plurality of pixels, each capable of outputting a gas discharge pulse upon interaction with radiation received from the photocathode. | 08-16-2012 |
20130068956 | PLASMA PANEL BASED IONIZING-PARTICLE RADIATION DETECTOR - A plasma panel based ionizing-particle radiation detector includes a first substrate and a second substrate coupled to the first substrate by a hermetic seal. The second substrate is an ultra-thin substrate. The detector further includes a discharge gas between the first and second substrate and at least one second electrode electrically coupled to a first electrode and defining at least one pixel with the first electrode. The second electrode is coupled to the first substrate and a first impedance is coupled to the first electrode. The detector further includes a power supply coupled to at least the first or second electrode and a first discharge event detector circuitry is coupled to at least one of the first or second electrodes for detecting a gas discharge counting event in the electrode. The detector further includes a plurality of pixels, each pixel capable of outputting a gas discharge pulse upon interaction with ionizing-radiation. Each gas discharge pulse is counted by the detector as having approximately an equal value and circuitry detects if a gas discharge pulse is output from the pixels, and counts each gas discharge pulse as an individual event. | 03-21-2013 |
20130240748 | PLASMA PANEL BASED IONIZING RADIATION DETECTOR - A radiation detector is formed from a plasma panel that includes a front substrate, and a back substrate that forms a generally parallel gap with the front substrate. X (column) and Y (row) electrodes are coupled by gas discharge events to define one or more pixels. Impedances are coupled to the X and Y electrodes, and a power supply is coupled to one or both types of electrodes. Discharge event detectors are coupled to the impedances. | 09-19-2013 |
20130284884 | PLASMA PANEL BASED RADIATION DETECTOR - 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. | 10-31-2013 |