EP0168883A1
Expired / Lapsed
EP
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X-ray detector tube
Assignee: Optische Industrie de Oude Delft NV
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Filing: 1985-07-04
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Granted: —
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Expires: 2005-07-04
Abstract
Abstract An X-ray detecor tube comprising an elongate housing (I) having an elongate cathode (2) and an elongate anode (4) mounted therein to extend essentially parallel with each other. During operation, an electrical potential is applied across the anode and the cathode of the evacuated tube. A channel plate (3) is mounted inside the housing between the cathode and the anode to extend essentially parallel therewith.
Inventors
- 👤 Hendrik Mulder
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 19:42
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; H01J31/506; H01J31/507; H01J31/49
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
68 words
An X-ray detector tube comprising an elongate housing having an elongate cathode and an elongate anode mounted therein to extend essentially parallel with each 'other, in which an electrical potential is applied across the anode and the cathode during operation and the tube has been evacuated, characterized in that a channel plate is mounted inside the housing between the cathode and the anode to extend essentially parallel therewith.
Claim 2
Dependent Claim
68 words
An X-ray detector tube comprising an elongate housing having an elongate cathode and an elongate anode mounted therein to extend essentially parallel with each 'other, in which an electrical potential is applied across the anode and the cathode during operation and the tube has been evacuated, characterized in that a channel plate is mounted inside the housing between the cathode and the anode to extend essentially parallel therewith.
Claim 3
Dependent Claim
46 words
A detector tube according to claim 1, characterized in that the housing has a tubular shape and has its forward end covered by a metal foil that is transmissive to X-radiation, the anode support being mounted in vacuum-tight fashion against the rear end of the housing.
Claim 4
Dependent Claim
50 words
A detector tube according to claim 1, characterized in that the housing has a tubular shape and has its forward end covered by a metal foil that is transmissive to X-radiation, the support being mounted in vacuum-tight fashion between the forward end and the rear end of the tubular housing.
Claim 5
Dependent Claim
24 words
A detector tube according to claim 1, 2 or 3, characterized in that the anode comprises a support with a phosphor layer deposited thereon.
Claim 6
Dependent Claim
54 words
A detector tube according to claim 1, 2 or 3, characterized in that the anode comprises a support of insulating material on which a large number of electrical strip-like conductors are provided, which conductors extend essentially normal to the longitudinal axis of the housing and each have a first end and a second end.
Claim 7
Dependent Claim
34 words
A detector tube according to claim 5, characterized in that the strip-like conductors are located within the housing and are each connected to a lead extending through the tube wall via a vacuum-tight bushing.
Claim 8
Dependent Claim
44 words
A detector tube according to claim 5, characterized in that the first ends of all strip-like conductors are located adjacent one edge of the anode support and that the second ends are located at a distance from the opposite edge of the anode support.
Claim 9
Dependent Claim
56 words
A detector tube according to claim 5, characterized in that the first ends of the strip-like conductors are alternately located adjacent one edge of the anode support and at a distance therefrom, and that the second ends are alternately located at a distance from the opposite edge of the anode support and adjacent said other edge.
Claim 10
Dependent Claim
37 words
A detector tube according to claim 5, characterized in that the electrical strip-like conductors consist of a number of electrically conductive layers deposited by evaporation in stepwise superposition, insulating layers being interposed between the electrically conductive layers.
Claim 11
Dependent Claim
21 words
A detector tube according to claim 7, 8 or 9, characterized in that the strip-like conductors protrude from the tubular housing.
Claim 12
Dependent Claim
44 words
A detector tube according to claim 2 or 3, characterized in that the anode support includes a large number of electrically conductive pins extending through the anode support to protrude from the housing, which pins are connected inside the housing to electrically conductive elements.
Claim 13
Dependent Claim
16 words
A detector tube according to claim 11, characterized in that the electrically conductive elements are point-shaped.
Claim 14
Dependent Claim
16 words
A detector tube according to claim 11, characterized in that the electrically conductive elements are strip-shaped.
Claim 15
Dependent Claim
69 words
A detector tube according to claim 1, 2 or 3, characterized in that the anode comprises an anode support having provided thereon a number of electrically conductive, transparent, strip-like elements extending parallel with each other and essentially normal to the longitudinal axis of the housing, and that said elements are provided with a phosphor layer having its surface facing the channel plate provided with a layer of aluminium foil.
Claim 16
Dependent Claim
24 words
A detector tube according to claim 5 or 11, characterized in that the anode support is made of a material of poor electrical conductivity.
Claim 17
Dependent Claim
32 words
A detector tube according to claim 5 or 11, characterized in that the anode support has its surface facing the channel plate provided with a layer of material of poor electrical conductivity.
Claim 18
Dependent Claim
25 words
A detector tube according to claim 1, 2 or 3, characterized in that the inner wall of the housing is coated with a copper layer.
References Cited (Backward Citations)
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