x-rays lo: to know how x-rays are used in medical physics
Post on 18-Jan-2018
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X-RaysLo: To know how x-rays are used in medical physics
X-rays
What are X-rays?
What are X-rays?
• Frequency, wavelength?
How does X-ray imaging work?
How does X-ray imaging work?• Transmitted by? Absorbed by?
• Photographic film? Or CCD’s?
What are the dangers of X-rays?
X-ray therapy
X-ray therapy• Ionising rays.
• Danger to all cells.
• Focus ray and rotate around tumour to minimise damage to body cells.
CT scans (computer tomography scanner)
CT Scanner• This builds up a 3D image of an organ as X-rays are taken
from all angles in a cross section and put together
How would the dosage compare to a normal X-ray?
CT Vs X-RayCT Scanner X-Ray
Image distinguishes between bone and soft tissue
Image distinguishes between different types of soft tissue
3D image
Radiation Dose
Cost
Summary• Using X-Rays to diagnose and treat illnesses.
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