US4703168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiplexed wedge anode detector
Assignee: EG&G Instruments Inc
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Filing: 1985-07-22
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Granted: 1987-10-27
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Expires: 2005-07-22
Abstract
Abstract A two-dimensional energy position detector includes an array of wedge-shaped anodes arranged in an alternating sequence. Each of the anodes is connected to a multiplexer which is controlled by a sequencer to place the signals from the anodes in a predetermined sequence onto a multiplex output line. A data processor may then analyze the signal on the multiplex output line to determine the position of energy incident on the anodes.
Inventors
- 👤 Gaylord Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:24
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24; H01J43/246
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
163 words
An apparatus for image detection comprising: a plurality of wedge-shaped anode detectors, each detector including a base portion and a vertex portion and being arranged along a first axis in an alternating sequence such that, except for the detectors at the end of said sequence, the vertex portion of any of said detectors is adjacent to the base portions of the two adjacent detectors, said wedge-shaped anode detectors also each including an output terminal for presenting a detection signal representing the amount of said incident energy on the detector containing that terminal; a multiplex output line; means, coupled to each of said detector output terminals, for multiplexing said detection signals at said output terminals onto said multiplex output line; and sequencing means coupled to said multiplexing means for controlling said multiplexing means to present on said multiplex output line a data signal containing a predetermined sequence of said detection signals from selected ones of said detectors, said data signal containing image detection information.
Claim 2
Independent Claim
163 words
An apparatus for image detection comprising: a plurality of wedge-shaped anode detectors, each detector including a base portion and a vertex portion and being arranged along a first axis in an alternating sequence such that, except for the detectors at the end of said sequence, the vertex portion of any of said detectors is adjacent to the base portions of the two adjacent detectors, said wedge-shaped anode detectors also each including an output terminal for presenting a detection signal representing the amount of said incident energy on the detector containing that terminal; a multiplex output line; means, coupled to each of said detector output terminals, for multiplexing said detection signals at said output terminals onto said multiplex output line; and sequencing means coupled to said multiplexing means for controlling said multiplexing means to present on said multiplex output line a data signal containing a predetermined sequence of said detection signals from selected ones of said detectors, said data signal containing image detection information.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 wherein said multiplexing means includes a decoder and a plurality of FET switches coupled to said decoder.
Claim 4
Dependent Claim
14 words
The apparatus of claim 1 wherein said multiplexinq means includes a CCD shift register.
Claim 5
Dependent Claim
28 words
The apparatus in claim 1 wherein said sequencing means also includes means for processing said data signal to determine the centroid of said incident energy in two dimensions.
Claim 6
Dependent Claim
20 words
The apparatus of claim 4 further including an analog-to-digital converter coupled between said multiplex output line and said processing means.
Claim 7
Dependent Claim
13 words
The apparatus of claim 5 wherein said analog-to-digital converter is a comparator circuit.
Claim 8
Dependent Claim
14 words
The apparatus of claim 5 wherein said analog-to-digital converter is a multi-bit analog-to-digital converter.
Claim 9
Dependent Claim
19 words
The apparatus of claim 5 further including an amplifier coupled between said multiplex output line and said analog-to-digital converter.
Claim 10
Dependent Claim
17 words
The apparatus of claim 1 wherein said wedge-shaped anodes detectors are each shaped like an isosceles triangle.
Claim 11
Dependent Claim
14 words
The apparatus of claim 1 wherein said wedge-shaped anode detectors are made from aluminum.
Claim 12
Dependent Claim
28 words
The apparatus of claim 1 wherein said sequencing means includes a data processor having means for sending control signals to said multiplexing means to vary said predetermined sequence.
Claim 13
Dependent Claim
24 words
The apparatus of claim 1 wherein said detectors are constructed on a silicon substrate and said multiplexing means is also constructed in said substrate.
Claim 14
Independent Claim
215 words
An apparatus for image detection comprising: a microchannel plate including two surfaces and a plurality of channels extending between said surfaces, said channels receiving and amplifying said incident energy; a plurality of wedge-shaped anode detectors mounted in close proximity to one surface of said microchannel plate to receive amplified incident energy from said plate, each detector including a base portion and a vertex portion and being arranged along a first axis in an alternating sequence such that, except for the detectors at the end of said sequence, the vertex portion of any of said detectors is adjacent to the base portions of the two adjacent detectors, said wedge shaped anode detectors also each including an output terminal for presenting a detection signal representing the amount of said incident energy from said microchannel plate on the detector containing that terminal; a multiplex output line; means, coupled to each of said detector output terminals, for multiplexing said detection signals at said output terminals onto said multiplex output line; and sequencing means coupled to said multiplexing means for controlling said multiplexing means to present on said multiplex output line a data signal containing a predetermined sequence of said detection signals from selected ones of said detectors, said data signal containing information regarding the position of said incident energy.
Claim 15
Independent Claim
215 words
An apparatus for image detection comprising: a microchannel plate including two surfaces and a plurality of channels extending between said surfaces, said channels receiving and amplifying said incident energy; a plurality of wedge-shaped anode detectors mounted in close proximity to one surface of said microchannel plate to receive amplified incident energy from said plate, each detector including a base portion and a vertex portion and being arranged along a first axis in an alternating sequence such that, except for the detectors at the end of said sequence, the vertex portion of any of said detectors is adjacent to the base portions of the two adjacent detectors, said wedge shaped anode detectors also each including an output terminal for presenting a detection signal representing the amount of said incident energy from said microchannel plate on the detector containing that terminal; a multiplex output line; means, coupled to each of said detector output terminals, for multiplexing said detection signals at said output terminals onto said multiplex output line; and sequencing means coupled to said multiplexing means for controlling said multiplexing means to present on said multiplex output line a data signal containing a predetermined sequence of said detection signals from selected ones of said detectors, said data signal containing information regarding the position of said incident energy.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-26 | 1991-04-27 | 1991-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-26 | 1995-04-27 | 1995-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-26 | 1999-04-27 | 1999-10-27 | $7700.00 | Window Closed / Lapsed |