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Dawn-Michelle

Physics

QuestionAnswer
How much energy is required to ionize tungsten through removal of a K-shell electron? 69 keV is required to ionize tungsten through removal of a K-shell electron Bushong p. 44
What are photons? A photon is the smallest quantity of any type of electromagnetic energy; an energy distrubance that moves through space at the speed of light. Bushong p. 57 paragraph 5 and 7
What type of mass does a photon have? None. A photon does not have mass. Bushong p. 57
An induction motor works through _________ induction. An induction motor works through ELECTROMAGNETIC induction. Bushong p. 127
Pair production occurs with x-rays that have energies greater than ________. Pair production occurs with x-rays that have energies greater than 1.02MeV. Bushong p.169
What controls radiographic contrast? kVp controls radiographic contrast. Bushong p. 245
Distance has what type of effect on radiation quality? Distance has NO effect on radiation quality. Bushong p. 248
What is the principle advantage of tomography? The principle advantage of tomography is improved contrast resolution. Bushong p. 266
The position of the _______ determines the object plane in tomography? The position of the FULCRUM determines the object plane in tomography. Bushong p 266
Electric potential is measured in ______. Electric potential is measured in VOLTS. Bushong p. 79
Adding filtration to the useful x-ray beam reduces x-ray beam ________. Adding filtration to the useful x-ray beam reduces x-ray beam INTENSITY. Bushong p. 147
Compton scattering ________ image contrast. Comton scatter REDUCES image contrast. Bushong p.165
What are the fundamental particles of an atom? The fundamential parts of an atom are the ELECTRON, THE PROTON, AND THE NEUTRON. Bushong p. 40
No outer shell can contain more than ______ electrons. No outer shell can contain more than EIGHT electrons. Bushong p. 43
Atoms that have the same number of neutrons but different protons are called ________. Atoms that have the same number of neutrons but different protons are called ISOTONES. Bushong p. 47
________ have the same atomic number amd the same atomic mass number. ISOMER'S have the same atomic number amd the same atomic mass number. Bushong p.47
X-rays and gamma rays are forms of electromagnetic radiation called _______. X-rays and gamma rays are forms of electromagnetic radiation called PHOTONS. Bushong p. 54
The autotransformer has a _______ winding. The autotransformer has a SINGLE winding. Bushong p. 104
_________________ is the process of converting AC to DC. RECTIFICATION is the process of converting AC to DC. Bushong p. 110
With _______ phase power, the voltage impressed across the x-ray tube is nearly constant, never dropping to zero during exposure. With THREE phase power, the voltage impressed across the x-ray tube is nearly constant, never dropping to zero during exposure. Bushong p. 113
The x-ray tube current is adjusted by controlling the ______ current. The x-ray tube current is adjusted by controlling the FILAMENT current. Bushong p. 123
The cathode is the negative side of the x-ray tube; it has two primary parts: a ______ and a __________ _____. The cathode is the negative side of the x-ray tube; it has two primary parts: a FILAMENT and a FOCUSING CUP. Bushong p. 122
The induction motor works through __________ induction. The induction motor works through ELECTROMAGNETIC induction. Bushong p. 127
Which generates more heat, three-phase or single-phase? Which generates more heat, three-phase or single-phase? THREE-PHASE Bushong p. 133
Most x-rays in the diagnostic range (20-150kVp) are _______ x-rays. Most x-rays in the diagnostic range (20-150kVp) are BREMSSTRAHLUNG x-rays. Bushong p. 149
X-ray ______ is the numebr of x-rays in the useful beam. X-ray QUANTITY is the numebr of x-rays in the useful beam. Bushong p. 153
Increasing filtration increase the _____ of an x-ray beam. Increasing filtration increase the QUALITY of an x-ray beam. Bushong p. 157
Compensating filters are useful for maintaining image _______. ensating filters are useful for maintaining image QUALITY. Bushong p. 160
An x-ray with les than 1.02 MeV cannot undergo _______ _________. An x-ray with les than 1.02 MeV cannot undergo PAIR PRODUCTION. Bushong p. 169
Attenuation is the product of __________ and ___________. Attenuation is the product of ABSORPTION and SCATTERING. Bushong p. 175
_____-____ x-rays are more likely to be absorbed in the target. LOW-ENERGY x-rays are more likely to be absorbed in the target. Bushong p. 146
In the diagnostic range, a ______% increase in kVp is equivalent to doubling the mAs. In the diagnostic range, a 15% increase in kVp is equivalent to doubling the mAs. Bushong p. 147
Created by: FHCRAD
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