INTRODUCTION
X-rays were discoveredin 1895 by Wilhelm
Conrad Roentgen (1845-1923) who was a
Professor at Wuerzburg University in
Germany. Roentgen shielded the tube with heavy
black paper, and discovered a green colored
fluorescent light generated by a material located a
few feet away from the tube.
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WHAT ARE X.RAYS
•X-rays are a type of radiation called electromagnetic waves Of
shorter wave length.
• The most familiar use of x-rays is checking for broken bones, but x-
rays are also used in other ways.
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COMPONENTS OF X.RAYMACHINE
• Operating console
• Generators
• Transformers
• Rectifiers
• X.ray tube
• Kv meter
• Ammeter
OPERATING CONSOLE
• Theoperating console allows
the radiologic technologist to
control the x-ray tube current
and voltage so that the useful x-
ray beam is of proper quantity
and quality.
7.
• The transformeris an electric
device,which can convert electrical
energy from one coil to another coil.
• It works on the principle of mutual
induction.
TRANSFORMERS
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TYPES OF TRANSFORMERS
1.STEP-UPTRANSFORMERS
•It transfers power of low voltage
and high current into power of high
voltage and low current.
•Secondary coil will have more
number of turns than primary.
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2.STEP-DOWN TRANSFORMERS
•It transferspower of high voltage
and low current into power of low
voltage and current.
•Primary coil will have large
number of turns than the secondary.
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3.AUTO-TRANSFORMER
•An autotransformer isa kind of
electrical transformer where
primary and secondary shares
same common single winding.
So basically it’s a one winding
transformer.
•It works on the principle of self
induction.
11.
RECTIFIER CIRCUIT
• Rectificationis the process of changing alternating current
into direct current.
• The device that produces the change is called a RECTIFIER.
• It allows an electrical current to flow in one direction but does
not allow the current to flow in the other direction.
12.
TYPES OF RECTIFIERS
1.HALF-WAVERECTIFIER
• A type of rectifier that only allows one half-cycle of an AC voltage
waveform to pass, blocking the other half-cycle.
• Half-wave rectifiers are used to convert AC voltage to DC voltage, and
only require a single diode to construct
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2.FULL-WAVE RECTIFIER
• AFull Wave Rectifier is a circuit, which converts an ac voltage into a
pulsating dc voltage using both half cycles of the applied ac voltage.
• It uses two diodes of which one conducts during one half cycle while
the other conducts during the other half cycle of the applied ac
voltage.
16.
GENERATOR
• An X-raygenerator ia the
device that supplies electric
power to x-ray tube.
• It begins with a source of
electrical energy.
17.
X.RAY TUBE
• AnX-ray tube is a
vacuum tube that
converts electrical
input power into X-
rays.
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PARTS OF X.RAYTUBE
• CATHODE: electron source.
• ANODE :target to stop the
electron.
• High voltage supply to
accelerate electrons.
• Vaccum
• Tube insert (glass envelope).