NEW
Font size
S
M
L
XL
WorksheetsRPC FINALS - PART 4
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Produces the electrons
a)
Cathode
b)
Anode
c)
Beam
d)
Screen
2.
Xrays are highly penetrative due to its high energy
a)
True
b)
False
3.
Electrons are produces along the vicinity of the filament
a)
Liberation
b)
Focusing
c)
Acceleration
d)
Deceleration
4.
Electrons are concentrated by the focusing cup
a)
Focusing
b)
Acceleration
c)
Deceleration
d)
Liberation
5.
electrons are accelerated to the anode due to the strong electrostatic attraction
a)
Acceleration
b)
Deceleration
c)
Liberation
d)
Focusing
6.
Kinetic energy contained by the electron is diminished and converted into x-rays
a)
Deceleration
b)
Liberation
c)
Focusing
d)
Acceleration
7.
Increasing the kvp increases the electron kinetic energy
a)
True
b)
False
8.
the electrons travelling from the cathode to anode
a)
Projectile Electron
b)
Target Excitation
c)
Characteristic X-rays
d)
Coherent Scattering
9.
The projectile electron interacts with the target's outer shell electrons. but does not transfer enough energy to ionize the atom
a)
Target Excitation
b)
Projectile Electron
c)
Compton Effect
d)
2/3rd rule
10.
Approximate ly 99% of kinetic energy is covnerted into heat, only 1% is used for x-ray production
a)
True
b)
False
11.
produced when a projectile electron is slowed by the electric field by the target atom nucleus
a)
Bremsstrahlung Radiation
b)
Target Excitation
12.
Bremsstrahlung came from the german word meaning
a)
Slowed down
b)
Paced
c)
Increase
d)
SPeed up
13.
Characteristic x-rays have very specific energies same with Bremsstrahlung
a)
False
b)
True
14.
Bremsstrahlung occurs less often than characteristic
a)
False
b)
True
15.
a portion of a continuum having a range of values of any quantity
a)
Spectrum
b)
Characteristic X-rays
c)
Coherent Scattering
d)
Image Noise
16.
have precisely fixed energies and form a discrete emission spectrum
a)
Characteristic X-rays
b)
Coherent Scattering
c)
Image Noise
d)
Compton Effect
17.
occurs when x-rays having <10keV interact with a target atom, causing excitation
a)
Coherent Scattering
b)
Image Noise
c)
Compton Effect
d)
2/3rd rule
18.
the general grayin of the image, reduces image contrast and overall image quality
a)
Image Noise
b)
Compton Effect
c)
2/3rd rule
d)
Backscatter Radiation
19.
Occurs when x-rays having energies in the diagnostic range (30-150keV) interact with an outer shell electron, causing ionization
a)
Compton Effect
b)
2/3rd rule
c)
Backscatter Radiation
d)
Photoelectric Effect
20.
the scattered x-ray retains at least 2/3rds of its original energy
a)
2/3rd rule
b)
Backscatter Radiation
c)
Photoelectric Effect
d)
Pair Production
21.
x-rays scattered back in the direction of the incident x-ray beam
a)
Backscatter Radiation
b)
Photoelectric Effect
c)
Pair Production
d)
Annihilation Radiation
22.
occurs when x-rays having energies in the diagnostic range (30-150keV) interact with an inner-shell electron, causing total absorption of the x-ray and ionization of the orbit electron
a)
Photoelectric Effect
b)
Pair Production
c)
Annihilation Radiation
d)
Photodisintegration
23.
occurs when x-rays having 1.02 Mev interact with the nulear force field of the atom, causing the production two electrons with oppostie electrostatic charges
a)
Pair Production
b)
Annihilation Radiation
c)
Photodisintegration
d)
Spectrum
24.
the conversion of masses into energy occuring when a positron unites with a free electron
a)
Annihilation Radiation
b)
Photodisintegration
c)
Spectrum
d)
Characteristic X-rays
25.
Occurs when x-rays having 10MeV interact with the nucleus, absrobing it by the nucleus and a nuclear fragment is emitted
a)
Photodisintegration
b)
Spectrum
c)
Characteristic X-rays
d)
Coherent Scattering
Reset
