RTE 1401 midterm review
Question 1.
What is the anode heel effect?
ANSWER
Question 2.
What increases the anode heel effect
ANSWER
1. increase i.r.
2. decrease SID
3. decrease target angle
Question 3.
For what purpose do we use the anode heel effect?
ANSWER
towards the thicker parts of the pt. body
Question 4.
XR photon properites
ANSWER
invisible light neutral speed of light straight line (heterogenous) ionize matter cant focus only restrict luminescence polyenergentic no matter
Question 5.
What are two types of homogenous beam?
ANSWER
scatter leakage
Question 6.
How do you decrease scatter?
ANSWER
increase collimation decrease kVp
Question 7.
Mammo uses how much kVp
ANSWER
40kVp
1/8
, Question 8.
Where does leakage come from?
ANSWER
the housing
Question 9.
How do you reduce pneumbra?
ANSWER
bottom shutters
Question 10.
How do you reduce off focus ghost
ANSWER
top shutters
Question 11.
What does scatter produce?
ANSWER
fog
Question 12.
What increases pneumbra
ANSWER
OID increase SID decrease
Question 13.
What is the magnification problem formula?
ANSWER
(OID x 7) + SID =?
Question 14.
What is collimation
ANSWER
restrain beam to a particular area
Question 15.
Whats the speed of light
ANSWER
3 x 10^8 m/s 3 x 10^10 cm/s 186/000 miles/s
2/8
Question 1.
What is the anode heel effect?
ANSWER
Question 2.
What increases the anode heel effect
ANSWER
1. increase i.r.
2. decrease SID
3. decrease target angle
Question 3.
For what purpose do we use the anode heel effect?
ANSWER
towards the thicker parts of the pt. body
Question 4.
XR photon properites
ANSWER
invisible light neutral speed of light straight line (heterogenous) ionize matter cant focus only restrict luminescence polyenergentic no matter
Question 5.
What are two types of homogenous beam?
ANSWER
scatter leakage
Question 6.
How do you decrease scatter?
ANSWER
increase collimation decrease kVp
Question 7.
Mammo uses how much kVp
ANSWER
40kVp
1/8
, Question 8.
Where does leakage come from?
ANSWER
the housing
Question 9.
How do you reduce pneumbra?
ANSWER
bottom shutters
Question 10.
How do you reduce off focus ghost
ANSWER
top shutters
Question 11.
What does scatter produce?
ANSWER
fog
Question 12.
What increases pneumbra
ANSWER
OID increase SID decrease
Question 13.
What is the magnification problem formula?
ANSWER
(OID x 7) + SID =?
Question 14.
What is collimation
ANSWER
restrain beam to a particular area
Question 15.
Whats the speed of light
ANSWER
3 x 10^8 m/s 3 x 10^10 cm/s 186/000 miles/s
2/8
