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Study sets matching "radiation physics mr"

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Study sets matching "radiation physics mr"

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…
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…
48 terms
Physics radiation
where is the electron in an atom
where is the nucleus on the atom
where is the neutrons in an atom
where is the protons in an atom
on the outside of the atom
in the middle of the atom
inside the nucleus
inside the nucleus
where is the electron in an atom
on the outside of the atom
where is the nucleus on the atom
in the middle of the atom
43 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)
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…
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…
45 terms
Radiation Physics
Isotope
Isotone
Isobars
Isomers
Same number of protons with different neutrons
Same number of Neutrons but different protons
Same number of nucleons but different number of protons.
Same number of protons but the energy state is different
Isotope
Same number of protons with different neutrons
Isotone
Same number of Neutrons but different protons
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
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…
22 terms
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
14 terms
physics radiation
radioactivity
alpha structure
beta structure
gamma ray structure
the energy released when an unstable nucleus disintegrates to…
two protons bonded with two neutrons
same as an electron
wave
radioactivity
the energy released when an unstable nucleus disintegrates to…
alpha structure
two protons bonded with two neutrons
13 terms
Physics - waves and radiation - radiation
Types of ionising radiation
ionisation
absorbed dose
Equivalent dose
Alpha particles are helium nuclei which are given out by deca…
ionisation is the process that an electron is knocked away fr…
absorbed dose (grays)=energy absorbed*mass
equivalent dose (sieverts)=absorbed dose* radiation weighing…
Types of ionising radiation
Alpha particles are helium nuclei which are given out by deca…
ionisation
ionisation is the process that an electron is knocked away fr…
18 terms
Physics-radiation
Ionising radiation
Ionising radiation
Radiowaves
Microwave
A source that give out charged particles which change the cha…
It kills cells and mutates dna
Radios transmitters
Mobile signal
Ionising radiation
A source that give out charged particles which change the cha…
Ionising radiation
It kills cells and mutates dna
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
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
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
67 terms
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
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
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…
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…
26 terms
Physics: Waves and Electromagnetic Radiation
What is a wave?
What is a mechanical wave?
What is an electromagnetic wave?
Does a mechanical wave need a medium…
Something that transfers energy from one place to another.
A wave that transfers energy from one place to another by dis…
A wave that transfers energy from one place to another by ele…
Yes.
What is a wave?
Something that transfers energy from one place to another.
What is a mechanical wave?
A wave that transfers energy from one place to another by dis…
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
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…
36 terms
Radiation Physics
Radiation
Radioactivity
Ionizing Radiation
Electromagnetic Radiation
The emission and propagation of energy through space or a sub…
The process by which certain unstable atoms or elements under…
Radiation is capable of producing ions by removing or adding…
The propagation of wavelike energy (without mass) through spa…
Radiation
The emission and propagation of energy through space or a sub…
Radioactivity
The process by which certain unstable atoms or elements under…
109 terms
Physics radiation
ATOMIC STRUCTURE
In alpha and beta decay what changes i…
In alpha decay what also changes in th…
What is the relative mass of proton?
...
The number of protons in a nucleus changes
Number of protons and neutrons
1
ATOMIC STRUCTURE
...
In alpha and beta decay what changes i…
The number of protons in a nucleus changes
8 terms
Physics (Radiation)
Refraction
Atoms
Ionization
Absorbed dose
Refraction of light is when the speed and direction of light…
The smallest particles that make up an element are called ato…
Ionization is when an atoms gains or loses an electron.
The energy absorbed per unit mass.... D=E/M
Refraction
Refraction of light is when the speed and direction of light…
Atoms
The smallest particles that make up an element are called ato…
15 terms
Physics-Radiation
Proton
Neutron
Electron
Alpha
+1 and mass of 1
0 and mass of 1
-1 and mass of 1/1843
two protons, two neutrons, mass 4, +2, change in nucleus goes…
Proton
+1 and mass of 1
Neutron
0 and mass of 1
79 terms
Radiation Physics
Radiology
Radiation
X-ray
Radiograph
Study of radiation
Form of energy carried by waves or a stream of particles
BEAM of energy that has the power to penetrate substances
IMAGE/PICTURE on film produced by the passage of x-rays throu…
Radiology
Study of radiation
Radiation
Form of energy carried by waves or a stream of particles
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
46 terms
Physics - Radiation
What particles make up an atom?
Which particles are in the nucleus?
What is an ion?
What is an isotope
Protons... Neutrons... Electrons
Protons and neutrons
More/less electrons than protons
Same number of protons, different number of neutrons - same e…
What particles make up an atom?
Protons... Neutrons... Electrons
Which particles are in the nucleus?
Protons and neutrons
26 terms
Physics: Radiation
What can ionising radiations be detect…
What is an atomic number?
What is a mass number?
What is an isotope?
Using a photographic film or a Geiger-Muller detector
The number of protons in an atom
The total number of protons and neutrons in an atom
Isotopes are different forms of the same element, which have…
What can ionising radiations be detect…
Using a photographic film or a Geiger-Muller detector
What is an atomic number?
The number of protons in an atom
21 terms
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…
11 terms
Physics - Radiation
Who is responsible for developing the…
Why is an atom neutral?
What is an ion?
What are the relative charges and mass…
Ernest Rutherford.
It has the same number of electrons as protons, so the charge…
An atom with extra electrons, or electrons missing. This mean…
Proton: +1 (charge), 1800 (relative mass)... Neutron: 0 (charge)…
Who is responsible for developing the…
Ernest Rutherford.
Why is an atom neutral?
It has the same number of electrons as protons, so the charge…
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…
15 terms
Physics radiation
What is the nature if alpha radiation?
What charge does alpha have ?
What size of mass does alpha hve ?
How far can alpha travel in air and wh…
Helium nucleus : two protons and two neutrons
+2 as two protons
Large
3-5 cm ... Stopped by paper
What is the nature if alpha radiation?
Helium nucleus : two protons and two neutrons
What charge does alpha have ?
+2 as two protons
15 terms
Physics - Radiation
Alpha (α)... Emission
Beta(β)... Emission
Gamma(γ)... Emission
Uses of alpha
A unstable nucleus becomes more stable by emitting an alpha p…
Is created by a nucleus which has to many neutrons. The neutr…
Is emitted by an unstable nucleus when either a beta or alpha…
Is used in smoke alarms. The alpha is emitted which then ioni…
Alpha (α)... Emission
A unstable nucleus becomes more stable by emitting an alpha p…
Beta(β)... Emission
Is created by a nucleus which has to many neutrons. The neutr…
9 terms
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
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…
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
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
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
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)
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
19 terms
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…
27 terms
Radiation Physics
How are molecules formed?
What shell has the strongest binding e…
Radioactivity
Particulate radiation
Sharing electrons or transferring electrons
K-shell
Uncontrolled radiation
Travel in straight lines at high speeds
How are molecules formed?
Sharing electrons or transferring electrons
What shell has the strongest binding e…
K-shell
16 terms
Physics - radiation
can cause atoms to become ions
2 protons and 2 neutrons
+2
electron
What does 'ionising' mean?
What does a alpha particle consist of?
What is the charge of an alpha particle?
What is a beta particle?
can cause atoms to become ions
What does 'ionising' mean?
2 protons and 2 neutrons
What does a alpha particle consist of?
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