Method of event detection for intraoral image sensor
First Claim
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1. A method of determining that radiation is incident upon a radiation sensitive sensor comprising a scintillator that converts x-ray radiation to visible light radiation and a plurality of pixels sensitive to the visible light radiation, said method comprising the steps ofmonitoring an amount of current drawn by the plurality of pixels;
- generating a signal indicating a presence of incident radiation when the visible light radiation causes the amount of current drawn by the plurality of pixels to exceed a predetermined amount.
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Abstract
A method of determining that radiation is incident upon a radiation sensor comprising a plurality of radiation sensitive pixels includes the steps of monitoring an amount of current drawn by the pixels, and generating a signal indicating a presence of incident radiation which the amount of current exceeds a predetermined amount.
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Citations
16 Claims
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1. A method of determining that radiation is incident upon a radiation sensitive sensor comprising a scintillator that converts x-ray radiation to visible light radiation and a plurality of pixels sensitive to the visible light radiation, said method comprising the steps of
monitoring an amount of current drawn by the plurality of pixels; generating a signal indicating a presence of incident radiation when the visible light radiation causes the amount of current drawn by the plurality of pixels to exceed a predetermined amount. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A radiation sensitive sensor, comprising
a scintillator that converts x-ray radiation to visible light radiation; -
a plurality of pixels sensitive to the visible light radiation; an event detection circuit that determines that radiation is incident upon said sensor when the visible light radiation causes an amount of electrical current drawn by said plurality of pixels to exceed a predetermined amount. - View Dependent Claims (9, 10, 11)
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12. A radiation sensitive sensor comprising:
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means for converting x-ray radiation to visible light radiation; means for generating an amount of electrical charge corresponding to an intensity of radiation incident on said sensor; means for determining that radiation is incident on said generating means when the visible light radiation causes an amount of electrical current drawn by said charge generating means to exceed a predetermined amount. - View Dependent Claims (13, 14, 15, 16)
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Specification