Question 1

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. 
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.

Question 2

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 3 
A)  1 and 2 
B)  1 and 3 
C)  2 and 3 
D)  1, 2, and 3

Question 3

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)  Bucky 
A)  crosshatch 
B)  focused 
C)  parallel 
D)  Bucky

Question 4

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 range 
A)  40 kVp 
B)  50 kVp 
C)  80 to 125 kVp 
D)  40 to 125, the entire diagnostic range

Question 5

As kVp is increased,photoelectric effect interactions will:

Accepted Answer

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

Question 6

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

Question 7

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

Question 8

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)  3 
A)  1 
B)  1.5 
C)  2 
D)  3

Question 9

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 3 
A) 1 and 2 only 
B)  1 and 3 only 
C)  2 and 3 only 
D)  1, 2, and 3

Question 10

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. 
A)  increase. 
B)  decrease. 
C)  remain the same. 
D)  increase, depending on the kVp level.

Question 11

As kVp is increased,Compton interactions will:

Accepted Answer

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

Question 12

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. 
A)  grid. 
B)  filter. 
C)  gonad shield. 
D)  cassette.

Question 13

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

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

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

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

At what kVp levels do Compton interactions occur?

As kVp is increased,photoelectric effect interactions will:

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

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

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

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

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

As kVp is increased,Compton interactions will:

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

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

Role of the Limited X-Ray Machine Operator

Introduction to Radiographic Equipment

Basic Mathematics for Limited Operators

Basic Physics of Radiography

X-Ray Production

X-Ray Circuit and Tube Heat Management

Principles of Exposure and Image Quality

Digital Image Receptor Systems

Formulating X-Ray Techniques

Radiobiology and Radiation Safety

Introduction to Anatomy, positioning, and Pathology

Upper Extremity and Shoulder Girdle

Lower Extremity and Pelvis

Spine

Bony Thorax, Chest, and Abdomen

Skull, Facial Bones, and Paranasal Sinuses

Radiography of Pediatric and Geriatric Patients

Image Evaluation

Ethics, Legal Considerations, and Professionalism

Safety and Infection Control

Assessing Patients and Managing Acute Situations

Medications and Their Administration

Medical Laboratory Skills

Additional Procedures for Assessment and Diagnosis

Bone Densitometry

Filters

Exam 9: Scatter Radiation and Its Control

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

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

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

At what kVp levels do Compton interactions occur?

As kVp is increased,photoelectric effect interactions will:

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

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

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

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

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

As kVp is increased,Compton interactions will:

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

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

Role of the Limited X-Ray Machine Operator

Introduction to Radiographic Equipment

Basic Mathematics for Limited Operators

Basic Physics of Radiography

X-Ray Production

X-Ray Circuit and Tube Heat Management

Principles of Exposure and Image Quality

Digital Image Receptor Systems

Formulating X-Ray Techniques

Radiobiology and Radiation Safety

Introduction to Anatomy, positioning, and Pathology

Upper Extremity and Shoulder Girdle

Lower Extremity and Pelvis

Spine

Bony Thorax, Chest, and Abdomen

Skull, Facial Bones, and Paranasal Sinuses

Radiography of Pediatric and Geriatric Patients

Image Evaluation

Ethics, Legal Considerations, and Professionalism

Safety and Infection Control

Assessing Patients and Managing Acute Situations

Medications and Their Administration

Medical Laboratory Skills

Additional Procedures for Assessment and Diagnosis

Bone Densitometry

Filters