Study sets matching "radiation physics mr"

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Study sets matching "radiation physics mr"

Radiation Physics/Radiation Oncology
Electron output depends on...
Embryo-Fetus Exposures
KERMA
LET
Jaw Settings
Total Dose Equivalent = 5mSV = 0.5rem... Monthly Dose Equivalent…
Kinetic Energy Released in Matter... KERMA = E transferred from…
Linear Energy Transfer... Highest for charged particles
Electron output depends on...
Jaw Settings
Embryo-Fetus Exposures
Total Dose Equivalent = 5mSV = 0.5rem... Monthly Dose Equivalent…
96 terms
Radiation Physics
Electrons
Neutrons
Protons
Z number (atomic #)
negatively charged... little mass
neutral charge... 1840x e- mass
positive charge... 1840 x e- mass
number of protons... in neutral atom = number of e-... determined I…
Electrons
negatively charged... little mass
Neutrons
neutral charge... 1840x e- mass
54 terms
Radiology- Mrs. Raines - (Week 2: Radiation Physics)
Molecules
How are molecules formed?
Ionization:
When you remove an electron what do yo…
Two or more atoms joined by chemical bonds. Atoms combine to…
A. transfer of electrons... B. sharing of electrons between the…
The production of ions --> converting atoms into ions.... *Atom=…
An ion pair
Molecules
Two or more atoms joined by chemical bonds. Atoms combine to…
How are molecules formed?
A. transfer of electrons... B. sharing of electrons between the…
Radiation Physics -- Radiation Oncology
Electron output depends on...
Embryo-Fetus Exposures
KERMA
LET
Jaw Settings
Total Dose Equivalent = 5mSV = 0.5rem... Monthly Dose Equivalent…
Kinetic Energy Released in Matter... KERMA = E transferred from…
Linear Energy Transfer... Highest for charged particles
Electron output depends on...
Jaw Settings
Embryo-Fetus Exposures
Total Dose Equivalent = 5mSV = 0.5rem... Monthly Dose Equivalent…
53 terms
Radiation Physics
Atom... A, Z, X
Electron shells
IsotoPes
IsotoNes
X= element... A= mass number (protons + neutrons)... Z= atomic numb…
K is the innermost and most tightly bound
same # protons... diff # neutrons
same # neutrons... diff # protons
Atom... A, Z, X
X= element... A= mass number (protons + neutrons)... Z= atomic numb…
Electron shells
K is the innermost and most tightly bound
480 terms
Radiation Physics -- Radiation Oncology
Electron output depends on...
Embryo-Fetus Exposures
KERMA
LET
Jaw Settings
Total Dose Equivalent = 5mSV = 0.5rem... Monthly Dose Equivalent…
Kinetic Energy Released in Matter... KERMA = E transferred from…
Linear Energy Transfer... Highest for charged particles
Electron output depends on...
Jaw Settings
Embryo-Fetus Exposures
Total Dose Equivalent = 5mSV = 0.5rem... Monthly Dose Equivalent…
Radiation Physics -- Radiation Oncology
Electron output depends on...
Embryo-Fetus Exposures
KERMA
LET
Jaw Settings
Total Dose Equivalent = 5mSV = 0.5rem... Monthly Dose Equivalent…
Kinetic Energy Released in Matter... KERMA = E transferred from…
Linear Energy Transfer... Highest for charged particles
Electron output depends on...
Jaw Settings
Embryo-Fetus Exposures
Total Dose Equivalent = 5mSV = 0.5rem... Monthly Dose Equivalent…
49 terms
Radiation Physics
Alpha, beta, neutron(s)
gamma, x ray, UV, visible, infrared, m…
Particulate, Electromagnetic
X rays, UV, alpha, beta, and neutron p…
3 Types of particulate radiation:
Types of electromagnetic radiation (7)
Types of radiation (2)
Types of ionizing radiation (7)
Alpha, beta, neutron(s)
3 Types of particulate radiation:
gamma, x ray, UV, visible, infrared, m…
Types of electromagnetic radiation (7)
64 terms
Radiation Physics
systemic study of the universe
a science that deals with matter and e…
rules that develop from studying relat…
Equation to convert from Celsius to Fa…
Natural Science
Physics
laws
F=(9/5)(Cº+32)
systemic study of the universe
Natural Science
a science that deals with matter and e…
Physics
Physics radiation
Half life
Becquerels
Atomic number
Mass number
The time it takes for half the atoms in a radioactive isotope…
One atom decays each second
The number of protons in an element
The sum of the number of protons + neutrons
Half life
The time it takes for half the atoms in a radioactive isotope…
Becquerels
One atom decays each second
14 terms
electromagnetic radiation/radiation physics
aluminum disk
collimator
cathode (-)
anode (+)
filter out nonpenetrating longer wavelengths
restricts the size of xray beam
-tungsten filament ... -molybdenum cup... where the electrons are p…
-tungsten target... -copper stem... -convert e- to xray photons
aluminum disk
filter out nonpenetrating longer wavelengths
collimator
restricts the size of xray beam
11 terms
Radiation Physics
Radioactive substances
Types of radiation
Background Radiation Source
Name another fuel used in nuclear powe…
Radioactive substances give out radiation all of the time. Th…
Nuclear radiation comes from the nucleus of an atom. Substanc…
Rocks... Medical Uses... Radioactive Tracers... Nuclear Accidents ... Nuc…
Plutonium and Uranium
Radioactive substances
Radioactive substances give out radiation all of the time. Th…
Types of radiation
Nuclear radiation comes from the nucleus of an atom. Substanc…
Radiation physics
Electrostatics is
Electrodynamics is
Electrical charges are measured in
One coulomb is equal to
the study of stationary electric charges
The study of electrical charges in motion
the systeme internationale (SI) unit (coulomb)
the electrical charge of 6.25 × 10^18 electrons
Electrostatics is
the study of stationary electric charges
Electrodynamics is
The study of electrical charges in motion
29 terms
Radiation physics
Mass
Matter
Difference between mass & weight
Energy
The amount of matter of an object
Anything that takes up space and has mass
Mass is the amount of matter occupyingan object and weight is…
The ability to do work
Mass
The amount of matter of an object
Matter
Anything that takes up space and has mass
Physics: Radiation
What is radiation?
Radiation is different to convection b…
Heat is transferred through
What affects radiation?
a method of transferring heat
it doesn't rely on particles for heat to be transferred
waves
shape, surface area
What is radiation?
a method of transferring heat
Radiation is different to convection b…
it doesn't rely on particles for heat to be transferred
55 terms
radiation physics
z-number =
atomic mass =
binding energy
the higher the Z number, the _________…
number of protons... same as # of electrons in neutral atom... Na h…
protons + neutrons... makes up nucleus
the attractive force that keeps electrons in it's orbit
higher
z-number =
number of protons... same as # of electrons in neutral atom... Na h…
atomic mass =
protons + neutrons... makes up nucleus
480 terms
Radiation Physics -- Radiation Oncology
Electron output depends on...
Embryo-Fetus Exposures
KERMA
LET
Jaw Settings
Total Dose Equivalent = 5mSV = 0.5rem... Monthly Dose Equivalent…
Kinetic Energy Released in Matter... KERMA = E transferred from…
Linear Energy Transfer... Highest for charged particles
Electron output depends on...
Jaw Settings
Embryo-Fetus Exposures
Total Dose Equivalent = 5mSV = 0.5rem... Monthly Dose Equivalent…
27 terms
Radiation Physics
Definition of radiology
What is the type of radiation used in…
Electromagnetic radiation
Electromagnetic waves
The propagation and emission of energy through matter
Electromagnetic radiation (Particulate radiation is the other…
- propagation of wave-like energy through space or matter at…
C = λ x ν... velocity of light = wavelength x frequency
Definition of radiology
The propagation and emission of energy through matter
What is the type of radiation used in…
Electromagnetic radiation (Particulate radiation is the other…
Physics: Radiation
Speed of Alpha Particles?
Penetrating Power of Alpha Particles?
What are Alpha particles dropped by?
What is it identical to? (Alpha Partic…
They are slow because they are Big and Heavy.
They don't have much penetrating power, they're stopped quick…
Very Heavy Nuclei like Uranium.
A Helium Nucleus - Made of 2 Protons and 2 Neutrons.
Speed of Alpha Particles?
They are slow because they are Big and Heavy.
Penetrating Power of Alpha Particles?
They don't have much penetrating power, they're stopped quick…
480 terms
Radiation Physics -- Radiation Oncology
Electron output depends on...
Embryo-Fetus Exposures
KERMA
LET
Jaw Settings
Total Dose Equivalent = 5mSV = 0.5rem... Monthly Dose Equivalent…
Kinetic Energy Released in Matter... KERMA = E transferred from…
Linear Energy Transfer... Highest for charged particles
Electron output depends on...
Jaw Settings
Embryo-Fetus Exposures
Total Dose Equivalent = 5mSV = 0.5rem... Monthly Dose Equivalent…
37 terms
radiation physics
_________ is the current that fluctuat…
_______ is the electric current that M…
_______ is the device that stores elec…
________ _______ is the form of electr…
AC (alternating current)
DC (direct current)
capacitors
mutual induction
_________ is the current that fluctuat…
AC (alternating current)
_______ is the electric current that M…
DC (direct current)
24 terms
physics Radiation
Alpha
Alpha
Beta
Beta
2 protons & 2 neutrons
atomic no. -2, mass no -4
1 electron
atomic no. +1, mass no. same
Alpha
2 protons & 2 neutrons
Alpha
atomic no. -2, mass no -4
Radiation physics
__________ is a "packet" of energy wit…
transmission of energy though space an…
movement of energy though space as a c…
Examples of electromagnetic radiation
xray photon
radiation
electromagnetic radiation
microwaves, radar, visible light, and x rays
__________ is a "packet" of energy wit…
xray photon
transmission of energy though space an…
radiation
Radiation physics
True or false, Wilhelm Roentegen reque…
Acute radiodermatitis
Cathode ray tube
Derived quantities
True.
A skin reddening and inflammation caused by prolonged exposur…
A partial vacuum tube that produced an electron stream and wa…
The combinations of fundamentals quantities to form velocity,…
True or false, Wilhelm Roentegen reque…
True.
Acute radiodermatitis
A skin reddening and inflammation caused by prolonged exposur…
Radiation Physics
Matter
Energy
Nucleus
Electrons
Anything that occupies space and has mass
Occurs when matter is altered
Composed of protons (positive) and neutrons (no charge)
negatively charged, orbit nucleus
Matter
Anything that occupies space and has mass
Energy
Occurs when matter is altered
38 terms
Radiation Physics
Converge
Filament
Focusing Cup
Space Charge
-To come together and unite in a common interest or focus
-That part of the cathode that emits electrons resulting in a…
-Metal shroud surrounding the filament... -a metal shape cup th…
-Electron cloud near the filament
Converge
-To come together and unite in a common interest or focus
Filament
-That part of the cathode that emits electrons resulting in a…
61 terms
Radiation Physics
x-ray
radiology
radiograph
matter
a beam of energy with the power to penetrate substances and r…
the study of radiation.
a picture on a film produced by the passage of x-rays through…
anything that has mass and occupies space. ex. solid, liquid…
x-ray
a beam of energy with the power to penetrate substances and r…
radiology
the study of radiation.
132 terms
Radiation Physics
electromagnetic radiation
No
radio waves, visible light
electron volt (eV)
What does EMR stand for?
Can EMR be seen, felt, touched, or heard?
What are two other types of EMR?
What is the energy unit for EMR?
electromagnetic radiation
What does EMR stand for?
No
Can EMR be seen, felt, touched, or heard?
Radiation physics
Matter
Atom
Protons
Neutrons
Anything that occupies space and has mass
The fundamental unit of matter
Carry positive charges
Carry no electrical charge
Matter
Anything that occupies space and has mass
Atom
The fundamental unit of matter
139 terms
radiation physics
matter
atom
molecule
energy
occupies space and has mass-made of molecules
fundamental unit of matter
smallest part of a substance that retains the same properties…
when matter is altered, _______ results
matter
occupies space and has mass-made of molecules
atom
fundamental unit of matter
139 terms
radiation physics
matter
atom
molecule
energy
occupies space and has mass-made of molecules
fundamental unit of matter
smallest part of a substance that retains the same properties…
when matter is altered, _______ results
matter
occupies space and has mass-made of molecules
atom
fundamental unit of matter
Radiation Physics
X radiation
Characteristics of x radiation
Cathode
Anode
weightless bundles of energy without an electrical charge tha…
appearance... mass... charge... wavelength... path of travel... focusing cap…
(-) tungsten filament, molydeum cup
(+) tungsten target, copper stem
X radiation
weightless bundles of energy without an electrical charge tha…
Characteristics of x radiation
appearance... mass... charge... wavelength... path of travel... focusing cap…
23 terms
Radiation physics
Energy
Types of energy
Electrons
Neutron
the ability to do work
potential... kinetic... chemical... electrical... thermal... nuclear... electro…
negative charge... constantly in motion orbiting the nucleus
no charge
Energy
the ability to do work
Types of energy
potential... kinetic... chemical... electrical... thermal... nuclear... electro…
Physics | Radiation | Types of Radiation
Alpha
Alpha
Alpha
Alpha
Big, heavy and slow-moving
Doesn't penetrate far
Is stopped quickly and easy
Most dangerous inside the body as it's too big to get out
Alpha
Big, heavy and slow-moving
Alpha
Doesn't penetrate far
10 terms
Radiation Physics
Radiation
Ionization Radiation
Radiology Biology
Electron binding energy
Energy transmission through space/mater
Ability of radiation to dislodge and electron by removing orb…
Radiations effect on living tissues
Electrostatic force btw nucleus and electron
Radiation
Energy transmission through space/mater
Ionization Radiation
Ability of radiation to dislodge and electron by removing orb…
Radiation Physics
Ionization energy
Electron Volt
electromagnetic radiation
Particulate... Electromagnetic
Energy required to remove an electron from its orbital shell
Energy of an electron traveling through 1 V
released when an electron falls into a closer orbital
Two forms of radiation
Ionization energy
Energy required to remove an electron from its orbital shell
Electron Volt
Energy of an electron traveling through 1 V
67 terms
Radiation Physics
Classifications of Magnets
Inverse Square Law
Unified field theory
Magnetic classification of materials
Natural... Artifical... -Alnico ( aluminum, nickel, & Cobalt)... Elect…
Force between two magnetic fields is directly proportional to…
Inverse square law applies to... Magnetism... Electric field... Gravity
Permeability- The ease with which a material can be magnetize…
Classifications of Magnets
Natural... Artifical... -Alnico ( aluminum, nickel, & Cobalt)... Elect…
Inverse Square Law
Force between two magnetic fields is directly proportional to…
45 terms
Radiation Physics
Absorption
Alpha particles
Aluminum disks
Amperage
The total transfer of energy from the X-ray photon to the ato…
A type of particulate radiation emitted from the nuclei of he…
Discs or sheets of aluminum, usually 0.5 mm thick, that are p…
The number of electrons that pass through a conductor; the st…
Absorption
The total transfer of energy from the X-ray photon to the ato…
Alpha particles
A type of particulate radiation emitted from the nuclei of he…
30 terms
Radiation Physics
photon
x radiation
x rays
metal housing
bundles of energy with no mass or weight that travel as waves…
is a high-energy, ionizing electromagnetic radiation
weightless bundles of energy (photons) without an electrical…
surrounds the x-ray tube and transformers... filled with oil ... w…
photon
bundles of energy with no mass or weight that travel as waves…
x radiation
is a high-energy, ionizing electromagnetic radiation
55 terms
Radiation Physics
50 mSv/yr
0.5 mSv/mo
15 mSv/yr
50 mSv/yr
Annual exposure limit for radiation worker
Dose limit to embryo/fetus during pregnancy
Public annual dose limit to lens
Public annual dose limit to skin/extremities
50 mSv/yr
Annual exposure limit for radiation worker
0.5 mSv/mo
Dose limit to embryo/fetus during pregnancy
Physics radiation
Alpha radiation
Alpha characteristics
Alpha radiation penertration
Beta radiation
A nucleus that has a charge of +.
Alpha is the most ionising but is the least penertrating.
Alpha can not get through paper.
An electron with the charge -1.
Alpha radiation
A nucleus that has a charge of +.
Alpha characteristics
Alpha is the most ionising but is the least penertrating.
5 terms
Radiation physics
Collisions - continuous spectrum
Characteristic spectrum
Interaction with matter
Photoelectric effect
Rapid deceleration of the electrons that pass close to the nu…
Incoming electron displaces an electron in the target tungste…
1. Completely scattered with no loss of energy RAYLEIGH EFFEC…
Photon hits inner shell electron which gets ejected into tiss…
Collisions - continuous spectrum
Rapid deceleration of the electrons that pass close to the nu…
Characteristic spectrum
Incoming electron displaces an electron in the target tungste…
27 terms
Physics - Radiation
Ionisation
What type of radiation produces most i…
Effects of radiation on non-living thi…
Effects of radiation on living things:
When an atom loses or gains an electron
Alpha
Radiation blackens photographic film... Radiation causes ioniza…
Can kill living cells or change nature of the cell= causes pr…
Ionisation
When an atom loses or gains an electron
What type of radiation produces most i…
Alpha
16 terms
Physics radiation
Gamma penetration
Gamma ionisation
Gamma atomic number
Gamma mass number
penetrate a long way
weakly ionising
no change
no change
Gamma penetration
penetrate a long way
Gamma ionisation
weakly ionising
25 terms
Radiation Physics
cathode
step down transformer
metal housing/tube head
anode
negative end of tube
decreases volts 3 to 5 volts
protects tube, lead lined
positive end of tube
cathode
negative end of tube
step down transformer
decreases volts 3 to 5 volts
52 terms
Radiation Physics
Matter
Atom
Nucleus
Proton
Occupies space and has a mass
Fundamental unit of matter
Dense core of an atom
Positive charge
Matter
Occupies space and has a mass
Atom
Fundamental unit of matter
139 terms
radiation physics
matter
atom
molecule
energy
occupies space and has mass-made of molecules
fundamental unit of matter
smallest part of a substance that retains the same properties…
when matter is altered, _______ results
matter
occupies space and has mass-made of molecules
atom
fundamental unit of matter
45 terms
physics radiation
Xrays travel
1cm*3 of tissue =
1GY =
999 of 1000 lesions will be repaired l…
at the speed of light
10*9 cells
1 in 1000 or 10*6 cells impacted/affected
10*3 damaged cells
Xrays travel
at the speed of light
1cm*3 of tissue =
10*9 cells
18 terms
Radiation Physics
Matter
Atoms
ELEMENTS
NUCLEUS
Anything that occupies space and has mass, all matter is comp…
A tiny, invisible particle that is the fundamental unit of ma…
Substances made up of only 1 type of atom
The core of the atom... Composed of protons (positively charged…
Matter
Anything that occupies space and has mass, all matter is comp…
Atoms
A tiny, invisible particle that is the fundamental unit of ma…
37 terms
Radiation Physics
Proton
neutron
Ionization
Radiation
2 up quarks + 1 down quark = charge +1
1 up quark + 2 down quark = neutral
forming an ion pair
Transmission of energy through space and matter
Proton
2 up quarks + 1 down quark = charge +1
neutron
1 up quark + 2 down quark = neutral
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