Question 1

Only at energies above 10 MeV can _______________ take place.

Accepted Answer

A)  photodisintegration 
B)  pair production 
C)  Compton scatter 
D)  photoelectric absorption 
A)  photodisintegration 
B)  pair production 
C)  Compton scatter 
D)  photoelectric absorption

Question 2

Which has the greatest mass density?

Accepted Answer

A)  Fat 
B)  Soft tissue 
C)  Bone 
D)  Air 
A)  Fat 
B)  Soft tissue 
C)  Bone 
D)  Air

Question 3

An incident x-ray interacts with an atom without ionization during ______________.

Accepted Answer

A)  photoelectric absorption 
B)  Compton scattering 
C)  coherent scattering 
D)  pair production 
A)  photoelectric absorption 
B)  Compton scattering 
C)  coherent scattering 
D)  pair production

Question 4

The two primary forms of x-ray interaction in the diagnostic range are ________________.

Accepted Answer

A)  Compton scattering and photoelectric absorption 
B)  Compton scattering and pair production 
C)  photoelectric absorption and coherent scattering 
D)  coherent scattering and Thompson scattering 
A)  Compton scattering and photoelectric absorption 
B)  Compton scattering and pair production 
C)  photoelectric absorption and coherent scattering 
D)  coherent scattering and Thompson scattering

Question 5

An outer-shell electron is ejected and the atom is ionized during _____________.

Accepted Answer

A)  photoelectric interactions 
B)  Compton interactions 
C)  coherent scattering 
D)  pair production 
A)  photoelectric interactions 
B)  Compton interactions 
C)  coherent scattering 
D)  pair production

Exam 9: X-ray Interaction with Matter

Only at energies above 10 MeV can _______________ take place.

Which has the greatest mass density?

An incident x-ray interacts with an atom without ionization during ______________.

The two primary forms of x-ray interaction in the diagnostic range are ________________.

An outer-shell electron is ejected and the atom is ionized during _____________.

Essential Concepts of Radiologic Science

The Structure of Matter

Electromagnetic Energy

Electricity, Magnetism, and Electromagnetism

The X-ray Imaging System

The X-ray Tube

X-ray Production

X-ray Emission

Radiographic Image Quality

Control of Scatter Radiation

Screen-Film Radiography

Screen-Film Radiographic Technique

Medical Imaging Computer Science

Computed Radiography

Digital Radiography

Digital Radiographic Technique

Viewing the Digital Image

Screen-Film Radiographic Artifacts

Screen-Film Radiographic Quality Control

Digital Radiographic Artifacts

Digital Radiographic Quality Control

Mammography

Mammography Quality Control

Fluoroscopy

Digital Fluoroscopy

Interventional Radiology

Computed Tomography

Human Biology

Fundamental Principles of Radiobiology

Molecular Radiobiology

Cellular Radiobiology

Deterministic Effects of Radiation

Stochastic Effects of Radiation

Health Physics

Designing for Radiation Protection

Radiography/Fluoroscopy Patient Radiation Dose

Computed Tomography Patient Radiation Dose

Patient Radiation Dose Management

Occupational Radiation Dose Management

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