A Detector That Is Used To Capture The Dental Image

The x radiation source used in most digital imaging systems is a conventional dental x ray unit. A method of obtaining a digital image in which an intraoral sensor is exposed to x rays to capture a radiographic image that can be viewed on a computer monitor.

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a detector that is used to capture the dental image

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An image sensor or imager is a sensor that detects and conveys information used to make an image.

A detector that is used to capture the dental image. Although each type of sensor uses different technology to capture images these sensors have no inherent quality difference. Although the charge coupled device detector functions in an equivalent role to that of film it has a number of superior attributes for imaging in many applications. Conventional imaging methods capture an image of an object by recording in a multipixel detector the intensity and color of a light beam that hits the object.

Ccd charge coupled device and cmos complementary metal oxide semiconductor imagers. The technique of ghost imaging. The digital camera incorporating a charge coupled device ccd detector is by far the most common image capture mechanism employed in present day optical microscopy.

Also less radiation can be used. Digital radiography is a form of radiography that uses x raysensitive plates to directly capture data during the patient examination immediately transferring it to a computer system without the use of an intermediate cassette. An image receptor found in the intraoral sensor.

Unlike the selenium based system this type of indirect conversion detector technology requires a two step process for x ray detection ie. Both ccd and cmos imagers use metal oxide semiconductors and they have about the same degree of sensitivity. A small detector that is placed intraorally to capture the radio.

Even though the detector used to record the pattern is sensitive only to the amplitudes. The waves can be light or other electromagnetic radiation. The scintillator converts the x ray beams into visible light and light is then converted into an electric charge by photo detectors such as amorphous silicon photodiodes.

For a flat plate detector the range of signals that can be detected is very much greater and makes full use of the 14 bit depth that is typically available. Advantages include time efficiency through bypassing chemical processing and the ability to digitally transfer and enhance images. A detector that is used to capture the dental image.

Illustration of an active matrix array and its associated electronic circuitry housed inside the image receptor cassette and connected to a digital image processor and image display device. A form of indirect digital imaging in which the image is recorded on phosphor coated plates and then placed into an electronic processor. Even though good contrast resolution may be displayed within this range when a 12 bit ccd camera is used the overall image contrast that can be displayed is limited.

It does so by converting the variable attenuation of light waves as they pass through or reflect off objects into signals small bursts of current that convey the information. Considerable research has been conducted in recent years into the development of flat panel image receptors for digital radiography. Two main types of sensors are used in digital cameras today.

Cmos Technology For Digital Dental Imaging Features Apr 2010