EP0450571A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Ultrafast x-ray imaging detector
Assignee: Yeda Research and Development Co Ltd
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Filing: 1991-04-02
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Granted: —
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Expires: 2011-04-02
Abstract
Abstract An X-ray detector including a photocathode arranged to receive X-ray radiation and being operative to provide in response thereto an output of electrons, and at least one electron multiplier operative at subatmospheric pressure and in response to the output of electrons from the photocathode to provide an avalanche including an increased number of electrons.
Inventors
- 👤 Amos Breskin
- 👤 Rachel Chechik
- 👤 Stanislaw Majewski
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 17:41
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
54 words
An X-ray detector comprising: a photocathode arranged to receive X-ray radiation and being operative to provide in response thereto an output of electrons; and at least one electron multiplier operative at subatmospheric pressure and in response to the output of electrons from the photocathode to provide an avalanche comprising an increased number of electrons.
Claim 2
Dependent Claim
54 words
An X-ray detector comprising: a photocathode arranged to receive X-ray radiation and being operative to provide in response thereto an output of electrons; and at least one electron multiplier operative at subatmospheric pressure and in response to the output of electrons from the photocathode to provide an avalanche comprising an increased number of electrons.
Claim 3
Dependent Claim
51 words
An X-ray detector comprising: a photocathode arranged to receive X-ray radiation and being operative to provide in response thereto an output of electrons; and at least one multi-stage electron multiplier operative in response to the output of electrons from the photocathode to provide an avalanche comprising an increased number of electrons.
Claim 4
Dependent Claim
51 words
An X-ray detector comprising: a photocathode arranged to receive X-ray radiation and being operative to provide in response thereto an output of electrons; and at least one multi-stage electron multiplier operative in response to the output of electrons from the photocathode to provide an avalanche comprising an increased number of electrons.
Claim 5
Dependent Claim
35 words
An X-ray detector according to claim 1 or 2 and also comprising at least one detecting means for detecting an indication of at least one characteristic of the electron avalanche produced by the electron multiplier.
Claim 6
Dependent Claim
41 words
An X-ray detector according to claim 1 or 2 and wherein the at least one electron multiplier comprises at least one detecting means for detecting an indication of at least one characteristic of the electron avalanche produced by the electron multiplier.
Claim 7
Dependent Claim
27 words
An X-ray detector according to claim 3 or claim 4 and wherein said detecting means comprises photon detection means for detecting photons emitted during the electron avalanche.
Claim 8
Dependent Claim
48 words
An X-ray detector according to any of the preceding claims and wherein said detecting means comprises electron detection means for detecting the electrons produced by the electron avalanche, the electron detection means comprising a plurality of pad electrode assemblies for collecting the electrons produced by the electron multiplier.
Claim 9
Dependent Claim
30 words
An X-ray detector according to any of the preceding claims wherein the photocathode is generally planar and is configured and arranged to receive X-ray radiation impinging on both sides thereof.
Claim 10
Dependent Claim
40 words
An X-ray detector assembly comprising: a gas filled enclosure; and a plurality of X-ray detectors located interiorly of the gas filled enclosure, each individual one of the plurality of X-ray detectors being according to any of the preceding claims 1-7.
Claim 11
Dependent Claim
51 words
An X-ray detecting method comprising the steps of: providing a photocathode arranged to receive X-ray radiation and being operative to provide in response thereto an output of electrons; and in response to the output of electrons from the photocathode, providing at sub-atmospheric pressure an avalanche comprising an increased number of electrons.
Claim 12
Dependent Claim
51 words
An X-ray detecting method comprising the steps of: providing a photocathode arranged to receive X-ray radiation and being operative to provide in response thereto an output of electrons; and in response to the output of electrons from the photocathode, providing at sub-atmospheric pressure an avalanche comprising an increased number of electrons.
Claim 13
Dependent Claim
41 words
An X-ray medical diagnostic method comprising the steps of: radiating a subject to be diagnosed with X-ray radiation; and employing an X-ray detector according to any of claims 1 - 8 in order to perform radiography by detecting said X-ray radiation.
References Cited (Backward Citations)
No citation records indexed.
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