Week 12

Question 1

What are the 2 types of structural shielding?

Answer 1

Primary
Secondary

Question 2

-in direct travel of primary beam
-perpendicular to the primary beam
-prevent direct radiation reaching personnel or public

Answer 2

Primary

Question 3

T/F
If a patient needs to be restrained, a non-radiation worker wearing protective equipment must perform this function

Answer 3

True

Question 4

How should the C arm be positioned to reduce scatter and occupational dose?

Answer 4

Xray tube under table

II on top and as close to the patient as possible to reduce patient entrance dose

*tube farther from patient

Question 5

Which side of the c arm has more scatter potential?

Answer 5

Tube side

Question 6

What is the location of the lower potential scatter dose?

Answer 6

The side of the patient away from the xray tube (II side)

Question 7

How far should the MRT stand from the tube if wearing lead apron?

Answer 7

2 meters

Question 8

How far should the MRT stand from the tube is not wearing lead?

Answer 8

3 meters

Question 9

Where is the best spot for the MRT to stand when exposing?

Answer 9

Perpendicular to the beam, not behind the xray tube due to backscatter

Question 11

-walls that are not in direct line of travel
-never struck by the primary beam
-protect against secondary radiation whether from the tube or from the patient

Answer 11

Secondary

Question 12

What is the dose limit for the control booth?

Answer 12

0.4mSv/week