Exam #2 Flashcards
List the primary components of the x-ray tube
Anode, Cathode, and Pyrex tube
The anode is ____Charged
Postive
The cathode is ____charged
Negative
The filaments are located on the _____
Cathode
The focusing cup surrounds the ____ and is ____charged
Filaments
negative
The process of electrons “boiling off” is referred to as _____and happens at the _______part of the tube
Thermionic emission
cathode
Electrons flow from the _____ to the ____ in the x-ray tube
Cathode
Anode
The ability to add or remove an orbital electron is known as____
ionization
The x-ray tube must have ____electrical current to produce x-rays
DC (direct current)
The process of converting AC to DC is known as?
Rectification
The power company delivers current to the x-ray generator and it is measured in ____. With the aid of step down transformer the current is changed into _____ for x-ray production.
Ampere
Mili-amps
_____indicates the amount of electrons that are called to the ____to be boiled off
mA
cathode
____indicates the amount of time the electrons have to boil
Time (s)
By multiplying ___ and ___ indicates the amount of x-rays that will be produced.
mA
s
_______indicates the amount of x-rays
mA x s
The power company delivers electricity to the generator and it’s “power” is measured in ____. By process f using the step up transformer the power is changed to
___
volts
kVp
_____indicated the power of x-rays
kVp (kilovolts)
the most efficient type of generator is a ____
high frequency generator
list the three primary components of a generator
High voltage transformer
filament transformer
rectifiers
electromagnetic energy travels in waves called___
Sine waves
A ______ wavelength with a ____frequency indicates a very powerful x-ray phton
short
high
a ____wavelength with a ____ frequency indicates a very weak x-ray photon
long
low
list three forms of energy
mechanical, chemical, and electrical
on the electromagnetic spectrum list two items that have the ability to ionize
gamma rays
x-rays
list the primary components of an atom.
electrons, protons, and neutrons
Name the two types of non diagnostic x-rays that are produced in the tube
Brems and Characteristic
by selecting the ____ button on the control panel determines how many electrons are called to the tube
mA
by selecting the ____button on the control panel determines how fast the x-rays and electrons travel
kVp
______ x-rays can be produced at any kVp level where as _____x-rays can only be produced using _____kVp and higher
Brems
characteristics
70 kVP
_____ keeps those non diagnostic forms of x-rays from exiting the tube
filtration
the NCRP states that all x-ray equipment must have ____ of Aluminum or equivalent
2.5mm
mA=
amount of electron
mAs=
amount of x-rays
s=
exposure time
amount of electrons x exposure time=
amount of x-rays
The higher the mAs means….
the darker the x-ray will be
The lower the mAs means….
The lighter the x-ray will be
kVp=
POWER
