IR exposure minor influences

Question 1

Increasing beam restriction (collimating) will do what?

Answer 1

make for smaller field size
reduce patient dose
less scatter
decrease in exposure

Question 2

Decreasing beam restriction (not collimating) will do what

Answer 2

more scatter
increase in exposure

Question 3

which side of the tube gives more exposure

Answer 3

cathode end

Question 4

what is Anode heel effect AHE

Answer 4

when the IR will recieve less radiation at the anode side

Question 5

when is AHE more pronounced

Answer 5

SID is smaller
IR size is larger
collimators are wide open

Question 6

when 90 kVp is selected, what does the 90 mean

Answer 6

the max amount of energy used

Question 7

what do low x ray energies do

Answer 7

add to patient skin dose

Question 8

what is tube (beam) filtration

Answer 8

aluminum plates added to tube to filter low energy x-rays to reduce patient dose

Question 9

As more aluminum filtration occurs what happens to IR exposure

Answer 9

it decreases

Question 10

what factors have no affect on IR exposure

Answer 10

focal spot, OID, patient motion, CR/IR angle