Question 1

Which of the following factors affects the quantity of scatter radiation fog on a radiograph?
1.Field size
2.Focal spot size
3.kVp

Accepted Answer

A)  1 and 2 only
B)   1 and 3 only
C)   2 and 3 only
D)   1, 2, and 3E) None of the above
F) B) and D)

Question 2

If the body part is thicker or larger,the amount of scatter radiation fog will:

Accepted Answer

A)   increase.
B)   decrease.
C)   remain the same.
D)   increase, depending on the kVp level.E) B) and C)
F) None of the above

Question 3

How will the density,or atomic number,of the absorbing matter affect scatter?

Accepted Answer

A)   It will decrease.
B)   It will increase.
C)   It will not affect scatter.
D)   It will affect scatter only if the body part is greater than 10 cm.E) B) and C)
F) B) and D)

Question 4

As kVp is increased,Compton interactions will:

Accepted Answer

A)   increase.
B)   decrease.
C)   remain the same.
D)   increase only above 60 kVp.E) All of the above
F) A) and B)

Question 5

Grids with lead strips that are aligned to coincide with the primary beam angle are called _____ grids.

Accepted Answer

A)   crosshatch
B)   focused
C)   parallel
D)   BuckyE) A) and D)
F) A) and C)

Question 6

A scattered photon has ________ energy than the incoming primary beam photon.

Accepted Answer

A)   less
B)   more
C)   less, if the kVp is over 80
D)   more, if the kVp is over 80E) B) and C)
F) A) and B)

Question 7

When performing the beam alignment test,the x-ray tube must be within ____ degree(s) of perpendicular to be in control.

Accepted Answer

A)   1
B)   1.5
C)   2
D)   3E) B) and C)
F) All of the above

Question 8

At what kVp levels do Compton interactions occur?

Accepted Answer

A)   40 kVp
B)   50 kVp
C)   80 to 125 kVp
D)   40 to 125, the entire diagnostic rangeE) A) and B)
F) A) and C)

Question 9

The most effective and practical way to reduce scatter radiation fog on a radiograph is to:

Accepted Answer

A)   decrease the OID.
B)   decrease the SID.
C)   increase the kVp.
D)   use a grid.E) C) and D)
F) B) and D)

Question 10

Scatter radiation fog will:
1)  increase density.
2)  decrease contrast.
3)  reduce the visibility of detail.

Accepted Answer

A)   1 and 2
B)   1 and 3
C)   2 and 3
D)   1, 2, and 3E) All of the above
F) A) and B)

Question 11

As kVp is increased,photoelectric effect interactions will:

Accepted Answer

A)   increase.
B)   decrease.
C)   remain the same.
D)   increase only above 60 kVp.E) A) and B)
F) B) and C)

Question 12

If a grid is misaligned with the central ray,it can cause a light area on the side of the image called:

Accepted Answer

A)   coherent scattering.
B)   parallax effect.
C)   grid cut-off.
D)   attenuation.E) A) and D)
F) A) and C)

Question 13

The device that is placed between the patient and the IR to absorb scatter radiation is called a:

Accepted Answer

A)   grid.
B)   filter.
C)   gonad shield.
D)   cassette.E) All of the above
F) A) and D)

Exam 9: Scatter Radiation and Its Control

As kVp is increased,photoelectric effect interactions will:

Correct Answer
verified

How will the density,or atomic number,of the absorbing matter affect scatter?

Correct Answer
verified

When performing the beam alignment test,the x-ray tube must be within ____ degree(s) of perpendicular to be in control.

Correct Answer
verified

A scattered photon has ________ energy than the incoming primary beam photon.

Correct Answer
verified

At what kVp levels do Compton interactions occur?

Correct Answer
verified

Which of the following factors affects the quantity of scatter radiation fog on a radiograph? 1.Field size 2.Focal spot size 3.kVp

Correct Answer
verified

If the body part is thicker or larger,the amount of scatter radiation fog will:

Correct Answer
verified

The device that is placed between the patient and the IR to absorb scatter radiation is called a:

Correct Answer
verified

If a grid is misaligned with the central ray,it can cause a light area on the side of the image called:

Correct Answer
verified

Grids with lead strips that are aligned to coincide with the primary beam angle are called _____ grids.

Correct Answer
verified

Scatter radiation fog will: 1) increase density. 2) decrease contrast. 3) reduce the visibility of detail.

Correct Answer
verified

The most effective and practical way to reduce scatter radiation fog on a radiograph is to:

Correct Answer
verified

As kVp is increased,Compton interactions will:

Correct Answer
verified

Exam 9: Scatter Radiation and Its Control

As kVp is increased,photoelectric effect interactions will:

Correct AnswerverifiedShow Answer

How will the density,or atomic number,of the absorbing matter affect scatter?

Correct AnswerverifiedShow Answer

When performing the beam alignment test,the x-ray tube must be within ____ degree(s) of perpendicular to be in control.

Correct AnswerverifiedShow Answer

A scattered photon has ________ energy than the incoming primary beam photon.

Correct AnswerverifiedShow Answer

At what kVp levels do Compton interactions occur?

Correct AnswerverifiedShow Answer

Which of the following factors affects the quantity of scatter radiation fog on a radiograph? 1.Field size 2.Focal spot size 3.kVp

Correct AnswerverifiedShow Answer

If the body part is thicker or larger,the amount of scatter radiation fog will:

Correct AnswerverifiedShow Answer

The device that is placed between the patient and the IR to absorb scatter radiation is called a:

Correct AnswerverifiedShow Answer

If a grid is misaligned with the central ray,it can cause a light area on the side of the image called:

Correct AnswerverifiedShow Answer

Grids with lead strips that are aligned to coincide with the primary beam angle are called _____ grids.

Correct AnswerverifiedShow Answer

Scatter radiation fog will: 1) increase density. 2) decrease contrast. 3) reduce the visibility of detail.

Correct AnswerverifiedShow Answer

The most effective and practical way to reduce scatter radiation fog on a radiograph is to:

Correct AnswerverifiedShow Answer

As kVp is increased,Compton interactions will:

Correct AnswerverifiedShow Answer

Correct Answer
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