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US 7,254,213 B2Granted
Radiological imagery method and device
AssigneeUniversite Pierre et Marie Curie
InventorJacques Bourgoin
Life of this patent
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Abstract
The relation relates to a method and a radiological imaging device. A subject (4) is illuminated by a luminous flux (1) generated by an X-ray source (2). This luminous flux (1) is a pulse having a duration tp shorter than 1 ms. The signals S derived from the interaction of the luminous flux (1) with the subject (4) are then detected by means of an X-ray detector (5) having a response time tr shorter than 0.1 ms. Applications possible in medical imaging (mammography, dental care, . . . ).
Claims4
A radiological imaging device, comprising:
- an X-ray source configured to transmit a luminous flux to a subject,
- means for controlling the source,
- an X-ray detector configured to detect a plurality of signals derived from an interaction of the luminous flux with the subject,
- means for digitally processing the plurality of signals, and
- means for viewing the plurality of signals, characterised in that:
- the X-ray source is a pulse source configured to generate pulses that have a pulse duration that is less than 1 ms and is greater than 0.1 ms,
- the means for controlling is configured to define the pulse duration of the pulses and an intensity of the pulses, and
- the X-ray detector has a response time that is less than 0.1 ms, the X-ray detector being a junction p/i/n comprising a zone p, a zone i, and a zone n, wherein the zone i is a relatively thick epitaxial layer made of an unintentionally doped semi-conductive material comprising GaAs and having a high atomic number to directly convert photons into electrons.
5 more elements
Dependencies are inferred from the claim text.