Patent US1676054A successfully refreshed from Google Patents.
US3770960A
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US
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X-ray display panel
Assignee: General Electric Co
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Filing: 1972-06-26
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Granted: 1973-11-06
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Expires: 1992-06-26
Abstract
Abstract An improved x-ray display panel is disclosed wherein the x-rays forming the pattern to be displayed induce ''''ionizing events'''' over the surface of the panel. The photon producing discharges as a result of these events make up a visible image of the x-ray pattern.
Inventors
- 👤 H Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:34
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J17/492; G; G01; G01T; G01T1/00; G01T1/29; G01T1/2914; G01T1/2921; G01T1/2935; H01J47/00; H01J47/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
153 words
In a radiation imaging system including a source of radiation for irradiating an object to be imaged and radiation detecting display means receiving radiation which has interacted with said object, an improved radiation detecting display panel comprising: first and second radiation transmissive fluid impervious plates oriented generally parallel to one another and spaced apart; a continuous unitary conductive coating applied over substantially the entire area of the interior surfaces of each of said plates to form first and second electrodes, at least one of said electrodes being light transmissive; a plate having generally cylindrical voids therein extending therethrough for the entire thickness thereof placed between and generally parallel with said electrodes; enclosure means for sealing in gas-containing relationship at least the region between said first and second plates and for containing a gas therein; and a source of electrical potential coupled to said first and second electrodes and producing an electric field therebetween.
Claim 2
Dependent Claim
153 words
In a radiation imaging system including a source of radiation for irradiating an object to be imaged and radiation detecting display means receiving radiation which has interacted with said object, an improved radiation detecting display panel comprising: first and second radiation transmissive fluid impervious plates oriented generally parallel to one another and spaced apart; a continuous unitary conductive coating applied over substantially the entire area of the interior surfaces of each of said plates to form first and second electrodes, at least one of said electrodes being light transmissive; a plate having generally cylindrical voids therein extending therethrough for the entire thickness thereof placed between and generally parallel with said electrodes; enclosure means for sealing in gas-containing relationship at least the region between said first and second plates and for containing a gas therein; and a source of electrical potential coupled to said first and second electrodes and producing an electric field therebetween.
Claim 3
Dependent Claim
22 words
An improved radiation detecting display panel as set forth in claim 1 wherein one of said electrodes comprises a metal oxide film.
Claim 4
Dependent Claim
14 words
The display panel of claim 2 wherein said metal oxide film comprises tin oxide.
Claim 5
Dependent Claim
30 words
The display panel of claim 2 wherein the other of said electrodes comprises a metal foil electrode selected from the group consisting of gadolinium foil, lead foil, and gold foil.
Claim 6
Dependent Claim
19 words
An improved radiation detecting display panel as set forth in claim 1 wherein said gas includes a noble gas.
Claim 7
Dependent Claim
36 words
The panel of claim 5 wherein said gas is a mixture of a gas selected from the group consisting of hydrogen and nitrogen with a gas selected from the group consisting of helium, neon, and argon.
Claim 8
Dependent Claim
10 words
The panel of claim 5 wherein said gas is xenon.
Claim 9
Dependent Claim
26 words
An improved radiation detecting display panel is set forth in claim 1 wherein said voids form a geometric pattern of voids in said plate having voids.
Claim 10
Dependent Claim
26 words
An improved radiation detecting display panel as set forth in claim 1 wherein said voids form a random pattern of voids in said plate having voids.
Claim 11
Dependent Claim
29 words
An improved radiation detecting display panel as set forth in claim 1 wherein said first and second plates are relatively opaque to ultraviolet radiation and transparent to visible radiation.
Claim 12
Dependent Claim
23 words
An improved radiation detecting display panel as set forth in claim 1 wherein said source of electrical potential comprises a direct current source.
Claim 13
Dependent Claim
23 words
An improved radiation detecting display panel as set forth in claim 1 wherein said source of electrical potential comprises an alternating current source.
Claim 14
Dependent Claim
27 words
The panel of claim 12 wherein said alternating current source is a pulsed RF source having a carrier frequency in the range 38 kHz to 120 kHz.
Claim 15
Dependent Claim
24 words
A display panel as set forth in claim 1 wherein one of said first and second plates further includes a layer of heavy metal.
Claim 16
Dependent Claim
26 words
A display panel as set forth in claim 1 wherein one of said first and second plates further includes a layer of ultraviolet photon producing phosphor.
Claim 17
Dependent Claim
20 words
A display panel as set forth in claim 1 wherein one of said first and second plates comprises leaded glass.
Claim 18
Dependent Claim
25 words
A display panel as set forth in claim 1 wherein one of said first and second plates has a resistive layer overlying said conductive coating.
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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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |