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Dawn-Michelle
Physics
Question | Answer |
---|---|
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 |