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Published byAmi Perkins Modified over 8 years ago
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Presented by: Aaditee. S. Kulkarni Omkar. R. Haldonkar Pranali. N. Kulkarni Ganesh M. Nair
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What are x rays? Electromagnetic radiations. Wavelength 0.01 to 10 nanometers. Can penetrate some solids and liquids, and all uncompressed gases. Used for diagnostic radiology.
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Three major elements of an x-ray machine: 1. Vacuum tube: made up of Pyrex glass. tungsten anode is enclosed along with cathode. cathode or emitter.
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X-ray tube Cathode accelerates electrons and leads them to anode(electron beam). Only a small portion of the electron beam is converted to x rays. Photons are discharged in all directions. By adjusting current and voltage, we can direct the beam on a visible substance.
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Rotating Anode The anode of rotating anode tube consist of a large disc of tungsten, or an alloy of tungsten, which theoretically rotates at a speed of about 3600 rpm. The purpose of rotating anode is to spread the heat produced during an exposure over a large area of anode.
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2.High Voltage Power Source A transformer is used Alternates between the voltage of currents being sent to the emitter or to the anode. Emitter requires small voltage supply for small currents Anode needs a large voltage supply
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3. Operating Console Control unit.. Manages current, voltage and timer. Current control allows adjustment of tube current to vary radiation intensity. Voltage control allows adjustments in anode to change energy of radiation. Timer determines the duration of exposure.
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X ray machine
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Working of x-ray tube: Cathode accelerates electrons and leads them to anode(electron beam) Only a small portion of the electron beam is converted to x rays Photons are discharged in all directions By adjusting current and voltage, we can direct the beam on a visible substance
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Advantages: - It is non-invasive. - It can be made available as a portable x-ray unit. - It is less costly when compared to the other imaging modalities like MRI or CT. Limitations: - X-ray uses radiation, which can cause cancer if you are exposed to it over a prolonged period of time. - Do not provide as much information as MRI and CT.
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APPLICATIONS Orthopantomogram: all teeth Mammogram: breast tissues Fluoroscopy for real time images
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Medical purposes Radiography Dentistry
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Dental X-Ray Machine X Ray Fluoroscopy Unit
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Dental X-RayFluoroscopy Images
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MAMMOGRAPHY MACHINE MAMMOGRAPHY IMAGE
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Uses of x ray machine: Security purposes Full Body scanners at airport Metal detectors
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Thank you
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