Density Test

February 13th, 2010 by RadiologyTech Leave a reply »

Density Test

1)      What is the controlling factor for density?

2)      T or F:  When compared to a slow RS a higher RS film will produce a more dense image AND will have a better resolution.

3)      Which law states that density should remain the same with any combination of mA and time as long as your mAs is the same?

4)      What percentage of change in mA will be needed to have a visible difference in density?

5)      T or F: A 5% increase in KvP will cause a visible difference in density.

6)      SID and beam intensity have a _______ relationship.

7)      Film density will _______ as filtration is increased.

8)      T or F:  Grids have no Effect on density.

9)      As tissue thickness and type increase density will _______

10)   Will increasing collimation increase or decrease the total number of x-ray photons hitting the IR?

11)   Window _______ describes the digital process for controlling density/brightness.

 

 

 

 

 

 

Answers

1)      mAs

2)      First part True, Second part false

3)      The Law of reciprocity

4)      30%

5)      True

6)      Inverse

7)      Decrease

8)      False

9)      Decrease

10)   Decrease

11)   Leveling