X-ray Production Ch 8 Flashcards
The energy of motion
Kinetic Energy
KE Formula
KE = ½mv2
Electrons travelling from cathode to anode
Projectile Electron
Three Effects if Projectile Electron
- The production of heat
- The formation of characteristics xrays
- The formation of bremsstrahlung xrays
constant excitation & return of
outer-shell electrons
Anode Heat
Efficiency of X-ray Production
- It is independent of the tube current
- It increases with increasing kVp
It is emitted when an outer-shell electron
fills an inner-shell void
Characteristic Radiation
What x-rays of tungsten are useful for imaging
K- Characteristics
X-rays resulting from electron transition to
the K shell
K X-rays
X-rays resulting from electron transition to
the L shell
L X-rays
It is produced when a projectile electron is
slowed by the electric field of a target atom
nucleus, “Slow down radiation”
Bremsstrahlung Radiation
It results when the projectile electrons loses
all its KE & simply drifts away from the
nucleus
High-Energy Bremsstrahlung X-ray
It results when the projectile electrons are
barely influenced by the nucleus
Low-Energy Bremsstrahlung X-ray
In the diagnostic range, most x-rays are
Bremsstrahlung X-rays
Graphic representation of the range over
which a quantity extends
Spectrum
It contains only specific values
Discrete Spectrum
It contains all possible values
Continuous Spectrum
It can be graphed as the number of x-rays
for each increment of energy in keV
X-ray Emission Spectrum
A plot of the frequency with which characteristic x-rays are emitted as a function of energy
Characteristic X-ray Spectrum
It extends from zero to maximum projectile
electron energy
Bremsstrahlung X-ray Spectrum
A process that determines the total number
of x-rays emitted
Integration
It reduces x-ray beam intensity while
increasing average energy
Added Filtration
