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Introduction to x-rays and x-ray tube
Engr Khaleeque AhmedSir syed university of engineering &
technology Karachi
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10-1 to 10 nm
400 to 700 nm
10-4 to 10 -1 nm
10 to 400 nm
700 to 104 nm
X-ray radiation was discovered by
Roentgen in 1895.
X-rays are generated by bombarding
electrons on an metallic anode
Emitted X-ray has a characteristic
wavelength depending upon which
metal is present.
NMR
10 um - 10 mm
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X-rays: a form of electromagnetic energy
Travel at the speed of light
Electromagnetic spectrum
Gamma Rays X-rays
Visible light Infrared light
Microwaves Radar
Radio waves
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X-rays radiations are created by taking energy from
electrons & converting into photons
This energy conversion takes place within the x ray
tube
The x-radiation produced can be controlled by
adjusting the electrical quantity(KV,mA)
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X-rays can:
Pass all the way through the body
Be deflected or scattered
Be absorbed
Where on this image
have x-rays passed
through the body
to the greatest degree?
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This is a modern rotating anode x-ray tube. It is encased completely in a metal protective housing.
There are two principle parts:
• The rotating anode
• The cathode
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It’s a energy converter Receive energy and converted into two other form that is heat and x radiations
These are designed because of massive prodution of x rays
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Quick and painless
Can help diagnose
various diseases and
injuries, including
broken bones, cancer
and infections
Very small increased risk
of cancer in future from
exposure to ionising
radiation(x-rays).
Risk is greater for
children
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