RADT1065 COMPREHENSIVE EXAM WITH RATIONALIZED
ANSWERS YEAR 2024/2025
X-rays are characterized as
a. charged particles.
b. electromagnetic waves of short wavelength.
c. electromagnetic waves with high frequencies.
d. both a and b - verified answers-d. both a and b
The emission spectrum of an x-ray beam from a tungsten
anode consists of.
a. characteristic spike at a unique keV
b. significant portion due to bremsstrahlung interactions
c. a mixture of brems and characteristic interaction
d. all of the above - verified answers-d. all of the above
Electrons traveling from the cathode filament to the anode are
called?
a. incident electrons
b. cathode electrons
c. scatter electrons
d. secondary electrons - verified answers-a. incident electrons
Tungsten is the anode material of choice for x-ray production
because of its.
a. ability to expand with high speed rotation G-forces
b. ability of liberating electrons as secondary x-ray sources
c. creation of off-focal radiation
d. excellent k-edge value for x-ray production - verified
answers-d. excellent k-edge value for x-ray production
When an x-ray passes through matter, it undergoes a process
called?
a. induction
b. filtration
c. attenuation
, d. resonance - verified answers-c. attenuation
During the process of attenuation, x-ray photons in the beam.
a. reduce in number
b. lose energy
c. produce ionizations
d. all of the above - verified answers-d. all of the above
During the process of attenuation, the x-ray photon may
interact with
a. the nucleus
b. the entire atom
c. an orbital electron
d. all of the above - verified answers-d. all of the above
Which atomic shell possesses the highest binding energy?
a. K
b. L
c. M
d. all atomic shells - verified answers-a. K
In which element are the inner-shell electrons more tightly
bound to the nucleus?
a. mercury(z=80)
b. tungsten (z=74)
c. lead (z=82)
d. chromium (z= 24) - verified answers-c. lead ( z=82)
If a photon interacts with matter and scatters, the photon.
a. no longer exists
b. exits with greater energy
c. exits with less energy
d. is totally absorbed - verified answers-c. exits with less energy
When an x-ray photon with a slightly greater energy than the
binding energy of the inner-shell electron interacts with that
inner-shell electron, the following interaction results:
ANSWERS YEAR 2024/2025
X-rays are characterized as
a. charged particles.
b. electromagnetic waves of short wavelength.
c. electromagnetic waves with high frequencies.
d. both a and b - verified answers-d. both a and b
The emission spectrum of an x-ray beam from a tungsten
anode consists of.
a. characteristic spike at a unique keV
b. significant portion due to bremsstrahlung interactions
c. a mixture of brems and characteristic interaction
d. all of the above - verified answers-d. all of the above
Electrons traveling from the cathode filament to the anode are
called?
a. incident electrons
b. cathode electrons
c. scatter electrons
d. secondary electrons - verified answers-a. incident electrons
Tungsten is the anode material of choice for x-ray production
because of its.
a. ability to expand with high speed rotation G-forces
b. ability of liberating electrons as secondary x-ray sources
c. creation of off-focal radiation
d. excellent k-edge value for x-ray production - verified
answers-d. excellent k-edge value for x-ray production
When an x-ray passes through matter, it undergoes a process
called?
a. induction
b. filtration
c. attenuation
, d. resonance - verified answers-c. attenuation
During the process of attenuation, x-ray photons in the beam.
a. reduce in number
b. lose energy
c. produce ionizations
d. all of the above - verified answers-d. all of the above
During the process of attenuation, the x-ray photon may
interact with
a. the nucleus
b. the entire atom
c. an orbital electron
d. all of the above - verified answers-d. all of the above
Which atomic shell possesses the highest binding energy?
a. K
b. L
c. M
d. all atomic shells - verified answers-a. K
In which element are the inner-shell electrons more tightly
bound to the nucleus?
a. mercury(z=80)
b. tungsten (z=74)
c. lead (z=82)
d. chromium (z= 24) - verified answers-c. lead ( z=82)
If a photon interacts with matter and scatters, the photon.
a. no longer exists
b. exits with greater energy
c. exits with less energy
d. is totally absorbed - verified answers-c. exits with less energy
When an x-ray photon with a slightly greater energy than the
binding energy of the inner-shell electron interacts with that
inner-shell electron, the following interaction results:
