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rad106 exam 2

QuestionAnswer
Structures that absorb x-rays are ______________ and structures that transmit x-rays are __________. radiopaque; radiolucent
Visible light is identified by __________ and x-rays are identified by ___________. wavelength; energy
The energy of a photon is ________________ proportional to its frequency. directly
An x-ray photon is a quantum of __________ energy. electromagnetic
X-rays are usually identified by their __________. energy
Like charges _______ and unlike charges _______. repel; attract
Electrical power is measured in _____. watts
A ___________ uses direct current. flashlight
Ohms law I=V/R
The smallest unit of electrical charge is the __________. electron
A change in mA or mAs results in a proportional change in the ________ of the x-ray emission spectrum at all energies. amplitude
Characteristic x-rays are emitted when an _________ electron fills an _________ void. outer-shell; inner-shell
Approximately _____ of the kinetic energy of electrons from the cathode is converted to heat. 99%
The amplitude of the emission spectrum with a _________ generator is __________ it is with a three-phase generator. single-phase; lower than
A 15% increase in kVp is equivalent to doubling the mAs
Created by: lindseylaporte
 

 



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