Question 1

In x-ray tubes, the types of reactions that produce x-rays include

Accepted Answer

A)  Bremsstrahlung and scatter. 
B)  Bremsstrahlung and characteristic. 
C)  characteristic and scatter. 
D)  characteristic and refraction. 
A)  Bremsstrahlung and scatter. 
B)  Bremsstrahlung and characteristic. 
C)  characteristic and scatter. 
D)  characteristic and refraction.

Question 2

Which of the following may be used to reduce streaking artifacts when scanning anatomy with high-density objects?

Accepted Answer

A)  Bow-tie filter 
B)  Adaptive detector array 
C)  Thinner collimation 
D)  Decreased kVp 
A)  Bow-tie filter 
B)  Adaptive detector array 
C)  Thinner collimation 
D)  Decreased kVp

Question 3

A general rule is that a 15% increase in kVp results in

Accepted Answer

A)  a 15% increase in mAs. 
B)  doubling the mAs. 
C)  a 15% reduction in mAs. 
D)  no affect on mAs. 
A)  a 15% increase in mAs. 
B)  doubling the mAs. 
C)  a 15% reduction in mAs. 
D)  no affect on mAs.

Question 4

Using a higher mA

Accepted Answer

A)  results in an increase in image noise. 
B)  results in an increase in contrast resolution. 
C)  results in a decrease in dose to the patient. 
D)  shortens the imaging time for the patient. 
A)  results in an increase in image noise. 
B)  results in an increase in contrast resolution. 
C)  results in a decrease in dose to the patient. 
D)  shortens the imaging time for the patient.

Question 5

In an x-ray tube, when the milliamperes (mA) are increased:

Accepted Answer

A)  Bremsstrahlung and characteristic x-rays increase. 
B)  Bremsstrahlung and characteristic x-rays decrease. 
C)  Bremsstrahlung x-rays increases and characteristic x-rays decrease. 
D)  Bremsstrahlung x-rays decrease and characteristic x-rays increase. 
A)  Bremsstrahlung and characteristic x-rays increase. 
B)  Bremsstrahlung and characteristic x-rays decrease. 
C)  Bremsstrahlung x-rays increases and characteristic x-rays decrease. 
D)  Bremsstrahlung x-rays decrease and characteristic x-rays increase.

In x-ray tubes, the types of reactions that produce x-rays include

Which of the following may be used to reduce streaking artifacts when scanning anatomy with high-density objects?

A general rule is that a 15% increase in kVp results in

Using a higher mA

In an x-ray tube, when the milliamperes (mA) are increased:

Mathematics and Statistics

Cell and Molecular Biology

Chemistrybiochemistry

Radiochemistryradiopharmacology

Radiation Safety in Nuclear Medicine

Patient Care

Department Administration

Clinical Research

Health Informatics in Imaging

Physics of Nuclear Medicine

Instrumentation

Pet Instrumentation

Principles of Magnetic Resonance Imaging

Clinical Petct in Oncology

Central Nervous System

Endocrine System

Respiratory System

Cardiovascular System

Gastrointestinal System

Genitourinary System

Skeletal System

Inflammatory Tumoroncology Imaging and Therapy

Hematopoietic System

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Exam 12: Ct Physics and Instrumentation

In x-ray tubes, the types of reactions that produce x-rays include

Which of the following may be used to reduce streaking artifacts when scanning anatomy with high-density objects?

A general rule is that a 15% increase in kVp results in

Using a higher mA

In an x-ray tube, when the milliamperes (mA) are increased:

Mathematics and Statistics

Cell and Molecular Biology

Chemistrybiochemistry

Radiochemistryradiopharmacology

Radiation Safety in Nuclear Medicine

Patient Care

Department Administration

Clinical Research

Health Informatics in Imaging

Physics of Nuclear Medicine

Instrumentation

Pet Instrumentation

Principles of Magnetic Resonance Imaging

Clinical Petct in Oncology

Central Nervous System

Endocrine System

Respiratory System

Cardiovascular System

Gastrointestinal System

Genitourinary System

Skeletal System

Inflammatory Tumoroncology Imaging and Therapy

Hematopoietic System

Filters