ASRT CALIFORNIA SUPERVISOR AND OPERATOR EXAM ||
COMPLETE QUESTIONS WITH 100% RATED EXPERT SOLUTIONS
|2026 LATEST UPDATED
Which of the following is NOT a component of the ARRT Standards of Ethics for Radiologic
Technologists?
statement of purpose
code of ethics
practice standards
rules of ethics - (answer)practice standards
Dose-volume histograms represent which of the following? Please select all that apply.
spatial distribution of the dose
mass of an organ
volume of an organ
dose received by the organ - (answer)volume of an organ
dose received by the organ
,Backscatter factor is defined as:
The ratio of the dose at dmax in phantom, to dose at dmax in air, with all other factors the same.
The ratio of the dose at dmax in air, to dose at dmax in phantom, with all other factors the same.
The ratio of the dose at depth in tissue, to the dose in air at the same depth.
The difference in dose caused by the scattering of electrons by material of different atomic
numbers. - (answer)The ratio of the dose at dmax in phantom, to dose at dmax in air, with all
other factors the same.
Percent depth dose (PDD) increases with an increase in distance because:
The backscatter factor increases.
There is a relatively smaller effect of the inverse square law.
There is a relatively larger effect of the inverse square law.
Attenuation of the beam by the tissue is decreased. - (answer)The backscatter factor increases.
The photoelectric (PE) interaction in matter occurs when an atom is ionized by which of the
following?
,alpha particles
electrons
photons
protons - (answer)photons
Health institution acquired infections are termed:
Nosocomial, and can be acquired by patients, health care workers, and visitors.
Pathogens, and can be acquired by patients.
Nosocomial and acquired only by patients.
Pathogens, and can be acquired only by health care workers. - (answer)Nosocomial, and can be
acquired by patients, health care workers, and visitors.
Treatment machines can use radioactive material or be a machine that produces radiation. Which
of the following pieces of equipment is not considered a "treatment machine that produces
radiation"?
Cyberknife
Gamma Knife
, Orthovoltage machine
Tomotherapy - (answer)Gamma Knife
Which test is known to check MLC deviations in interleaf transmission?
Coupled precision
Latter formation
Picket fence
Star gate - (answer)Picket fence
The isodose line that best defines the field size is the _______ line.
50%
80%
90%
100% - (answer)50%
Which of the following is NOT a means of delivering oxygen to a patient?
COMPLETE QUESTIONS WITH 100% RATED EXPERT SOLUTIONS
|2026 LATEST UPDATED
Which of the following is NOT a component of the ARRT Standards of Ethics for Radiologic
Technologists?
statement of purpose
code of ethics
practice standards
rules of ethics - (answer)practice standards
Dose-volume histograms represent which of the following? Please select all that apply.
spatial distribution of the dose
mass of an organ
volume of an organ
dose received by the organ - (answer)volume of an organ
dose received by the organ
,Backscatter factor is defined as:
The ratio of the dose at dmax in phantom, to dose at dmax in air, with all other factors the same.
The ratio of the dose at dmax in air, to dose at dmax in phantom, with all other factors the same.
The ratio of the dose at depth in tissue, to the dose in air at the same depth.
The difference in dose caused by the scattering of electrons by material of different atomic
numbers. - (answer)The ratio of the dose at dmax in phantom, to dose at dmax in air, with all
other factors the same.
Percent depth dose (PDD) increases with an increase in distance because:
The backscatter factor increases.
There is a relatively smaller effect of the inverse square law.
There is a relatively larger effect of the inverse square law.
Attenuation of the beam by the tissue is decreased. - (answer)The backscatter factor increases.
The photoelectric (PE) interaction in matter occurs when an atom is ionized by which of the
following?
,alpha particles
electrons
photons
protons - (answer)photons
Health institution acquired infections are termed:
Nosocomial, and can be acquired by patients, health care workers, and visitors.
Pathogens, and can be acquired by patients.
Nosocomial and acquired only by patients.
Pathogens, and can be acquired only by health care workers. - (answer)Nosocomial, and can be
acquired by patients, health care workers, and visitors.
Treatment machines can use radioactive material or be a machine that produces radiation. Which
of the following pieces of equipment is not considered a "treatment machine that produces
radiation"?
Cyberknife
Gamma Knife
, Orthovoltage machine
Tomotherapy - (answer)Gamma Knife
Which test is known to check MLC deviations in interleaf transmission?
Coupled precision
Latter formation
Picket fence
Star gate - (answer)Picket fence
The isodose line that best defines the field size is the _______ line.
50%
80%
90%
100% - (answer)50%
Which of the following is NOT a means of delivering oxygen to a patient?
