1. Introduction to x-rays and
x-ray tube
Engr Khaleeque Ahmed
Sir syed university of engineering &
technology Karachi

2. 700 to 104 nm
400 to 700 nm
10 to 400 nm
10-1 to 10 nm
10-4 to 10 -1 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

3.  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

4.  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)

5.  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?

6.  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

7.  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

8. 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