Rte 1401 Radiographic Physics And Imaging Practice Questions And Solutions

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




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, 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




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