Coefficient of Thermal Expansion and their Importance.pptx
1lab xray and xray tube
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