Developing Radiographic Films

Question 1

The photo sensitive material in a Radiographic film emulsion is

A- Kryptonite
B- Sodium Thiosulphate
C- Silver Bromide
D- Calcium tungstate

Answer 1

C- Silver Bromide

Question 2

Lead screens decrease exposure times by a factor of :

A- 10 or 12 exceeding 120 Kv
B- 5 or 6 exceeding 120 Kev
C- 4 or 5 exceeding120 Kev
D- 2 or 3 exceeding 120 Kev

Answer 2

D - 2 or 3 exceeding 120 Kev

Question 3

The ideal thickness of lead in lead foil screens

A- is 0.25mm
B- increases with increasing radiation energy
C- decreases with increasing radiation energy
D- is 0.05mm

Answer 3

B- increases with increasing radiation energy