CODE : PHY416
COURSE : IMAGING PHYSICS
COURSE DESCRIPTION
This course emphasizes radiological physics as it applies to the medical
imaging technology covering aspects of electromagnetic radiation,
production and properties of x-rays, interaction of x-rays

Tutorial 4
1.
Calculate the magnitude and direction of the electric field at the centre of the
square in Figure if q =1.0 108 C and a = 5 cm.
ANS. : 1.02 105 N C1 ; upwards
2. At a certain distance from a point charge, the magnitude of the electric field

TUTORIAL 2
For question 1-4, used inverse square law formula given:
I1 = (D2)2
I2
(D1)2
Whereas
I1 = the original intensity of radiation
I2 = the new intensity of radiation
D22 = the new distance squared
D12 = the original distance squared
1. A radiograph

TUTORIAL 3
1) An abdominal radiograph uses 1013 photons to expose a film with area of 0.15 m2
during an exposure time of 0.1 sec. All photons have energy of 40 keV. Find the
photon fluence , photon flux , energy fluence and energy fluence rate
(Intensity)