8.3
The area under the curve of the x-ray emission spectrum represents_______?
The total number of x-rays.
Both the shape and the position of the characteristic x-ray emission spectrum__________?
Correspond to target electron binding energies.
The continuous x-ray emission spectrum principally depends on which of the following:
a. exposure time
b. filtration
c. mAs
d. projectile electron energy
e. target material.
D. projectile electron energy
To construct an x-ray emission spectrum, one must know the_________?
the number of x-rays at each energy interval.
Normally, the x-ray emission spectrum contains_______?
Both characteristic and bremsstrahlung x-rays.
A diagnostic x-ray contains_______?
mostly bremsstrahlung x-rays, with some characteristic x-rays.
If an x-ray emission spectrum represented operation at 26 kvp with a molybdenum target, the_________?
The characteristic radiation would have an energy of approximately 19 keV
The characteristic x-ray emission spectrum principally depends on which of the following:
A. filtration
B. kvp
C. mAs
D. projectile electron energy
E. target material
E. target material
The x-ray emission spectrum is a plot of________?
the number of x-rays versus energy.
Which of the following factors principally accounts for the reduced x-ray intensity at low energy?
a. added filtration
b. beam collimation
c. atomic number of the target material
d. energy spectrum of the projectile electron
e. voltage waveform
A. added filtration.
Which of the following factors explains the low number of x-rays emitted at low energy?
a. added filtration
b. the glass envelope of the x-ray tube
c. the kvp
d. the mAs enclosing the x-ray tube
e. the product of tube current and exposure time.
A. Added filtration.
The amplitude of the bremsstrahlung x-ray emission spectrum has maximum value at_________?
Has maximum value at energy approximately 1/3 of the kvp.
characteristic x-radiation is related to the energy required to_______?
Energy required to eject K-shell electrons.
The x-ray emission spectrum represents _________?
X-rays emitted from the x-ray tube.
If an x-ray emission spectrum represented operation at 85 kvp with a tungsten target, the______?
the K-characteristic x-ray emission would occur at 69 keV
Molybdenum has a lower atomic number than tungsten, therefore, the molybdenum x-ray emission spectrum has______?
Lower amplitude