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Image Production-new Test

Enter the letter for the matching Answer
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1.
What is the device that creates the x-ray beam?
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2.
What is used to define the size of the x-ray beam to the area or body part being irradiated?
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3.
What is the process of heating filament in order to liberate electrons called?
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4.
-refers to the strongest photon in the beam of radiation
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5.
What determines the speed at which the electrons move from cathode to anode ?
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6.
What is the symbol of the speed of light?
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7.
increase the speed, will do what to the kinetic energy produced?
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8.
What handles the concentration of electrons?
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9.
-the distance between the crests of a wave
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10.
Name the 4 conditions necessary for the production of x-ray:
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11.
_________ occurs when a neutral atom gains an electron.
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12.
How many of the two filaments is heated during a exposure?
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13.
increasing the kVp will do what to the speed of the projectile electron that is traveling from the (-) to (+)
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14.
Increaseing kVp will have what effect on the kinetic energy of the electron?
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15.
What makes up the majority of the x-ray beam?
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16.
What type of characteristic radiation is the only one that is strong enough to be useful?
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17.
Tube current is measured in?
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18.
Raising the kV will make the electrons travel?
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19.
Strong photon has what frequency and wavelength characteristics?
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20.
What is the difference between photon speed and electron speed?
A.
C
B.
brems radiation
C.
high frequency short wavelength
D.
1. boiling/separation off of electrons 2. production of high speed electrons 3. concentration of electrons 4. sudden slowing or stopage of electrons
E.
K-characteristic
F.
x-ray tube
G.
increases the kinetic energy
H.
Collimator box
I.
Negative ionization
J.
mA, milliamperes
K.
minimum wavelength
L.
focusing cup
M.
Faster
N.
increase it
O.
wavelength
P.
Electron speed can vary; photon speed is constant
Q.
only one
R.
thermionic emission
S.
increases the speed
T.
kV, kilovolt
Type the Answer that corresponds to the displayed Question.
incorrect
21.
The filament is heated in order to do what?
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22.
________ occurs when a neutral atom loses one of its electrons.
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23.
increasing the heat in the filament, what effect does that have on the # of electrons being boiled off?
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24.
Cathode contains ___ filaments and has a ____ charge.
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25.
If kVp is able to produce k-characteristic radation, atom is _________ because electron is moved out of K shell.
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26.
As the temp increases, the rate of emission will ?
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27.
- "prep" the tube by heating one of the filaments so that electrons are emitted and hover in the tube in an electron cloud
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28.
The flow of electrons from cathode to anode constitutes the _____________.
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29.
What are the two types of radation are x-ray beams made of?
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30.
What controls the degree of filament heating?

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