How can we help?

You can also find more resources in our Help Center.

Study sets matching "radiation"

Study sets
Classes
Users

Study sets matching "radiation"

16 terms
Radiation
examples of background radiation
immediate effects of radiation exposure
later effects of radiation exposure
radiation as cancer therapy
gasses in the home, gamma rays, medical x-rays, internal (foo…
cell damage especially to fast growing cells, fatigue, nausea…
DNA damage in cell nucleus (DNA mistakes can lead to cancer),…
cancer cells multiply faster than normal cells and radiation…
examples of background radiation
gasses in the home, gamma rays, medical x-rays, internal (foo…
immediate effects of radiation exposure
cell damage especially to fast growing cells, fatigue, nausea…
18 terms
Radiation
Convection
Heat
Conduction
Temperature
Transfer of heat by circulation
energy of atoms and molecules of substance
Transfer of heat by molecular activity
Average kinetic energy of individual atoms of a substance
Convection
Transfer of heat by circulation
Heat
energy of atoms and molecules of substance
68 terms
Radiation
Radiation Measurement-1
Amount of Exposure
Radiation Measurement-2
Radiation Measurement-3
Radiation absorbed dose, dose equivalent, and exposure are st…
determined by estimating curies [Ci] present. The greater the…
International System of Units. The official system of measure…
Smaller fractions of these measured quantities have a prefix.…
Radiation Measurement-1
Radiation absorbed dose, dose equivalent, and exposure are st…
Amount of Exposure
determined by estimating curies [Ci] present. The greater the…
10 terms
radiation
insulator
conductor
conduction
convection
A material that does not allow heat or electrons to move thro…
A material that allows heat and electricity to pass through it.
Form of heat transfer where heat energy is directly transferr…
The transfer of heat by the movement of a fluid
insulator
A material that does not allow heat or electrons to move thro…
conductor
A material that allows heat and electricity to pass through it.
14 terms
Radiation
Radioactivity
Radioisotope
Nuclear Radiation
Alpha Particle
A measure of a nuclide's transformation rate.
Any atom containing an unstable nucleus.
energy given off by radioactivity
a positively charged particle that is the nucleus of the heli…
Radioactivity
A measure of a nuclide's transformation rate.
Radioisotope
Any atom containing an unstable nucleus.
9 terms
Radiation
radiation
radioactivity
ionizing radiation/energy... and types
stochastic effects
energy can travel through space - gamma, x ray, alpha, beta,…
emission of radiation when atom goes from unstable to stable…
energy to remove electron from atoms, producing ions - like p…
increased probability of adverse health symptom occurring/dev…
radiation
energy can travel through space - gamma, x ray, alpha, beta,…
radioactivity
emission of radiation when atom goes from unstable to stable…
21 terms
Radiation
Kinetic Energy
Potential Energy
Water
Conduction
Energy of motion/Ex. Temperature.
Energy of position (gravity)/ Ex. Air in thermosphere has a l…
High specific heat! It warms up, cools down slowly.
Energy moved by direct contact. Ex. Touch a hot stove.
Kinetic Energy
Energy of motion/Ex. Temperature.
Potential Energy
Energy of position (gravity)/ Ex. Air in thermosphere has a l…
150 terms
Radiation
CNS Syndrome
Gastrointestinal Syndome
Hematopoeitic Syndrome
Acute whole-body radiation exposure... Pa…
Damages CNS as well as all other organ systems... Unconsciousnes…
Destruction of instrestinal lining in addition to significant…
Effects mainly on blood-forming tissues... Depression or destruc…
Acute Radiation Syndrome
CNS Syndrome
Damages CNS as well as all other organ systems... Unconsciousnes…
Gastrointestinal Syndome
Destruction of instrestinal lining in addition to significant…
8 terms
Radiation
Paschen series
Balmer series
Layman series
UV
Infrared light emitted from dropping down energy levels
Visible light emitted when electron jumps down energy levels
UV light emitted when electrons jump down energy levels
Electrons jump down to level 1 and release ___ light
Paschen series
Infrared light emitted from dropping down energy levels
Balmer series
Visible light emitted when electron jumps down energy levels
15 terms
Radiation
Alpha Particle
Beta Particle
Bubble Chamber
Chain Reaction
Made of two protons and two neutrons is emitted from the deca…
The electron is emitted from the nucleus
Holds a superheated liquid, which does not to boil because th…
The series of repeated fission reactions caused by the releas…
Alpha Particle
Made of two protons and two neutrons is emitted from the deca…
Beta Particle
The electron is emitted from the nucleus
55 terms
Radiation
types of explosions
types of nuclear weapons used
fission
fusion
mechanical, chemical, nuclear
gun and implostion
a reaction in which the nucleus of an atom splits into smalle…
two or more nuclei fuse together to form a single heavier ele…
types of explosions
mechanical, chemical, nuclear
types of nuclear weapons used
gun and implostion
9 terms
Radiation
Radiation-
2 types of radiation:
Non-ionizing-
Ionizing-
emission of energetic particles or electromagnetic waves (vis…
non-ionizing and ionizing
(long wavelength - low frequency, low energy) transfers energ…
(short wavelengths - high frequency, high energy) energy ejec…
Radiation-
emission of energetic particles or electromagnetic waves (vis…
2 types of radiation:
non-ionizing and ionizing
13 terms
Radiation
Radioactive
Nuclear equation
Nucleons
Positron
Spontaneously decompose
Both the atomic number and the atomic mass must be conserved
Particles in nucleus
Same mass as electron but different charge
Radioactive
Spontaneously decompose
Nuclear equation
Both the atomic number and the atomic mass must be conserved
14 terms
Radiation
Alpha decay
Beta decay
Gamma
Ionisation
When 2 protons and 2 neutrons break away from the atom
Electrons are emitted by isotopes that have too many neutrons…
Is a high energy electromagnetic wave.
Alpha: most ionising ... Beta: medium ionisation ... Gamma: least i…
Alpha decay
When 2 protons and 2 neutrons break away from the atom
Beta decay
Electrons are emitted by isotopes that have too many neutrons…
16 terms
radiation
fx of radial head
closed fracture
open fracture
transverse fx
fat pad sign
Simple fracture... No open wounds of skin near fracture
- Compound fracture... - Cutaneous (open wounds) of skin near fr…
occur perpendicular to the long axis of the bone.
fx of radial head
fat pad sign
closed fracture
Simple fracture... No open wounds of skin near fracture
22 terms
Radiation
Radioactive decay
Alpha
Beta
Gamma
When an unstable nucleus changes its composition to become st…
Two protons and two neutrons are omitted from atoms nucleus a…
A neutron changes into a proton and an electron. The electron…
Gamma rays are electromagnetic radiation
Radioactive decay
When an unstable nucleus changes its composition to become st…
Alpha
Two protons and two neutrons are omitted from atoms nucleus a…
9 terms
radiation
Radioactivity
Nuclear Radiation
Radioactive Decay
Stable
Ability of some elements to give off nuclear radiation
High energy particles and ray emitted by the nuclei of some a…
Nucleus of radioactive atoms release nuclear radiation
Same number of protons and neutrons
Radioactivity
Ability of some elements to give off nuclear radiation
Nuclear Radiation
High energy particles and ray emitted by the nuclei of some a…
radiation
ionisation
isotope/ ion
beta particle
alpha particle
a change in charge due to loss/gain of electrons
a version of an atom
a fast-moving electron
a helium nucleus
ionisation
a change in charge due to loss/gain of electrons
isotope/ ion
a version of an atom
13 terms
Radiation
two types of radiation
ionizing two types
particulate ionizing radiation
non particulate ionizing radiation
ionizing and nonizonizing
particulate ionizing radiation and non particulate ionizing r…
has mass, spontaneous decay of unstable atoms release alpha o…
has no mass, gamma and xrays
two types of radiation
ionizing and nonizonizing
ionizing two types
particulate ionizing radiation and non particulate ionizing r…
Radiation
Types of Radiation
The energy of the particle or wave
Ionizing Radiation
Non ionizing energy
Types of Radiation -alpha particles... -beta particles... -neutrons…
The damage of radiation is based upon:
... ... is capable of stripping electrons from atoms and brea…
-this form of energy is still absorbed but doesn't cause bond…
Types of Radiation
Types of Radiation -alpha particles... -beta particles... -neutrons…
The energy of the particle or wave
The damage of radiation is based upon:
Radiation
Stable
Unstable
Radiation
Radioactive
When an atom does not need to change state
Has excess energy atom wants to change & release the energy
When an atom changes and releases energy
When an isotope is unstable and can release radiation
Stable
When an atom does not need to change state
Unstable
Has excess energy atom wants to change & release the energy
21 terms
Radiation
Alpha Radiation
Beta Radiation
Gamma Radiation
Alpha Symbol
Alpha Particle (helium nucleus)
Beta Particle (Electron)
High Energy, electro-magnetic Radiation
Jesus fish, 4 over 2 He
Alpha Radiation
Alpha Particle (helium nucleus)
Beta Radiation
Beta Particle (Electron)
13 terms
Radiation
radioactivity
alpha particle
radioactive decay
beta particle
process by which an unstable nucleus emits one or more partic…
positively charged particle, emitted by some radioactive nucl…
Process in which the atomic nuclei of radioactive isotopes re…
electron emitted during the radioactive decay of a neutron in…
radioactivity
process by which an unstable nucleus emits one or more partic…
alpha particle
positively charged particle, emitted by some radioactive nucl…
Radiation
Radiation
Two Types of Radiation
Ionizing Radiation
Two Sources of Ionizing Radiation
energy that comes from a source and travels through some mate…
Non-Ionizing... Ionizing
Capable of removing an electron from an atom
Natural environmental radiation ... Man-made radiation
Radiation
energy that comes from a source and travels through some mate…
Two Types of Radiation
Non-Ionizing... Ionizing
9 terms
Radiation
alpha
Beta
Gamma
Alpha particle
Least penetrating. It can be stopped, or absorbed, by just a…
Able to penetrate air and paper. It can be stopped by a thin…
The most penetrating. Even small levels can penetrate air, pa…
Two protons and two neutrons - the same as a helium nucleus
alpha
Least penetrating. It can be stopped, or absorbed, by just a…
Beta
Able to penetrate air and paper. It can be stopped by a thin…
Radiation
Nuclear Radiation
Ionizing radiation
Henri Becquerel
Pierre and Marie Curie
Energy and matter emmitted from a substance
Alpha, beta, gamma, neutron, positron, and X-rays (among othe…
French scientist, first to discover radioactive materials in…
Husband and wife team, followed up on Becquerel's discovery,…
Nuclear Radiation
Energy and matter emmitted from a substance
Ionizing radiation
Alpha, beta, gamma, neutron, positron, and X-rays (among othe…
47 terms
Radiation
Ionizing
Ionizing radiation sources
Types of ionizing radiation
Alpha
<100nm wavelength, energy sufficient to remove electrons, ion…
radon, x-rays, nuclear medicine
Alpha, Beta, Gamma, Other
Large radiation particle. Helium nucleus. Stopped by outer la…
Ionizing
<100nm wavelength, energy sufficient to remove electrons, ion…
Ionizing radiation sources
radon, x-rays, nuclear medicine
9 terms
Radiation
alpha
gamma
gamma
alpha
most mass
least mass
greatest penetrating power
least penetrating power
alpha
most mass
gamma
least mass
22 terms
Radiation
X-Ray
Radiograph
anode cathode
decreases increases
invisible beam or photon of energy
Image receptor is processes making a radiograph
In coolidge Tube the ______ is positive and the _______ is ne…
As the size of the focal spot ______ the sharpness of the ima…
X-Ray
invisible beam or photon of energy
Radiograph
Image receptor is processes making a radiograph
21 terms
Radiation
Control
Radiosensitivity
Radiosensitive Tumor
Tumor Radiosensitivity
Pre-op: ⬇️ size of tumor ... Post-op: destroy remaining tumor ce…
susceptibility of tissues to radiation... cells most sensitive:…
Divides rapidly... Well vascularized... High O2 content
Very: Lymphomas, Neuroblastoma... Moderate: Prostate / cervical…
Control
Pre-op: ⬇️ size of tumor ... Post-op: destroy remaining tumor ce…
Radiosensitivity
susceptibility of tissues to radiation... cells most sensitive:…
10 terms
Radiation
Nucleus
Proton
Neutron
Electron
the positively charged central core of an atom, consisting of…
a stable subatomic particle occurring in all atomic nuclei, w…
a subatomic particle of about the same mass as a proton but w…
a stable subatomic particle with a charge of negative electri…
Nucleus
the positively charged central core of an atom, consisting of…
Proton
a stable subatomic particle occurring in all atomic nuclei, w…
10 terms
radiation
alpha sign
alpha particle
alpha radiation
beta sign
α
²₄He
semi-truck... ↑size... ↑ionizing power... ↓penetrating power
β
alpha sign
α
alpha particle
²₄He
21 terms
Radiation
Beta particle
Alpha particle
Gamma
Properties of Beta Particle
High velocity electron with a negative charge
High velocity helium nucleus
Deeply penetrating electromagnetic wave, which travels at the…
Negative charge of 1... Low mass... Up to 0.9 x speed of light... Weak…
Beta particle
High velocity electron with a negative charge
Alpha particle
High velocity helium nucleus
18 terms
Radiation
Spectrometer
Spectrophotometer
Spectroscope
spectrograph
Measures a spectrum ... light intensity (or absorbance) vs. freq…
Measures ratio of light intensities (or powers)... usually photo…
human eye is the detector... eyepiece at the exit slit
all wavelengths simultaneously... no exit slit... film or diode arr…
Spectrometer
Measures a spectrum ... light intensity (or absorbance) vs. freq…
Spectrophotometer
Measures ratio of light intensities (or powers)... usually photo…
12 terms
radiation
back ground radiation
isotopes
alpha
beta
low level radiation in which we are exposed to all the time.…
isotopes are the same element but with different mass numbers
least penetrating stopped by a sheet of paper
can penetrate air and paper stopped by thin aluminium
back ground radiation
low level radiation in which we are exposed to all the time.…
isotopes
isotopes are the same element but with different mass numbers
10 terms
Radiation
symbol for alpha particle
symbol for beta particle
symbol for electron capture
symbol for positron emission
⁴₂He
⁰₋₁e (product side)
⁰₋₁e (reactant side)
⁰₁e
symbol for alpha particle
⁴₂He
symbol for beta particle
⁰₋₁e (product side)
26 terms
Radiation
Radioisotopes
Stability
Changing The Number of Protons/Neutrons
Alpha, Beta, Gamma
They have an unstable nuclei
To be stable, they rely on the ratio of protons to neutrons
It leads to it giving off large amounts of energy and becomin…
The three types of radiation
Radioisotopes
They have an unstable nuclei
Stability
To be stable, they rely on the ratio of protons to neutrons
14 terms
Radiation
Alpha particle
Beta particle
Gamma ray
Transmutation
A helium nucleus emitted by some radioactivity substances, or…
A fast moving electron emitted by radioactive decay of substa…
Penetrating electromagnetic radiation of atomic nuclei
The changing of one element into another by radioactive decay…
Alpha particle
A helium nucleus emitted by some radioactivity substances, or…
Beta particle
A fast moving electron emitted by radioactive decay of substa…
40 terms
Radiation
alpha particle
beta particle
gamma/X-ray electromagnetic
film badge
emit He nucleus, QF 20, inhale/ingest, wipe/scintillation
emit electron, QF 1, shield w/ plastic glass
emit proton, QF1, shield w/ lead, concrete
beta, gamma dosimetry
alpha particle
emit He nucleus, QF 20, inhale/ingest, wipe/scintillation
beta particle
emit electron, QF 1, shield w/ plastic glass
12 terms
Radiation
radiation
non- ionizing radiation
ionizing
ionizing health effects
energy in the form of electro magnetic waves or accelerated a…
enough energy to excite atoms, but not enough to remove an el…
energy in the form of waves of particles that have enough ene…
any molecule may be altered by radiation, but DNA is the most…
radiation
energy in the form of electro magnetic waves or accelerated a…
non- ionizing radiation
enough energy to excite atoms, but not enough to remove an el…
8 terms
Radiation
Alpha
Beta
Gamma
Mass number
Its made 2 protons and 2 neutrons. The relative is mass is 4.…
An electron created and emitted by a nucleus that has to many…
Is an electromagnetic radiation from the nucleus of an atom.…
Number of protons and neutrons in it.
Alpha
Its made 2 protons and 2 neutrons. The relative is mass is 4.…
Beta
An electron created and emitted by a nucleus that has to many…
Radiation
Radiation
Conduction
convection
insolation
Energy that is radiated or transmitted in the form of rays or…
Form of heat transfer where heat energy is directly transferr…
Process by which, in a fluid being heated, the warmer part of…
incoming solar radiation
Radiation
Energy that is radiated or transmitted in the form of rays or…
Conduction
Form of heat transfer where heat energy is directly transferr…
19 terms
Radiation
Isotope
Radioactivity
Alpha
Gamma
Same # protons and different # of neutrons
The process by which certain elements emit particular forms o…
Positively charged(+2); atomic # -2 Mass # -4; stopped by pap…
No mass or charge; just energy; neutral; very dangerous; stop…
Isotope
Same # protons and different # of neutrons
Radioactivity
The process by which certain elements emit particular forms o…
29 terms
Radiation
Isotope
electron
proton
neutron
one of two or more atoms with the same atomic number but with…
an elementary particle with negative charge
a subatomic particle that has a positive charge and that is f…
a subatomic particle that has no charge and that is found in…
Isotope
one of two or more atoms with the same atomic number but with…
electron
an elementary particle with negative charge
Radiation
Amu
Element symbol
Atomic number
Atomic mass
Atomic mass unit 1/12 mass
H
Tells us the number of protons
Protons plus neutrons
Amu
Atomic mass unit 1/12 mass
Element symbol
H
radiation
examples of particulate radiation
effect of electromagnetic radiation on…
amount of energy contained in electrom…
electric current in dental xray tube f…
protons, neutrons, alpha particles, electrons, or beta partic…
ionizing potential
wavelength and frequency or speed while traveling
from negative pole to postive pole
examples of particulate radiation
protons, neutrons, alpha particles, electrons, or beta partic…
effect of electromagnetic radiation on…
ionizing potential
31 terms
Radiation
alpha decay
Large, heavy and slow
The atomic number decreases by 2 and t…
Beta decay
A nuclear reaction in which a nucleus ejects an alpha particle
Characteristics of an alpha particle
What happens when the element undergoes alpha decay
A form of nuclear reaction in which a Beta particles is eject…
alpha decay
A nuclear reaction in which a nucleus ejects an alpha particle
Large, heavy and slow
Characteristics of an alpha particle
8 terms
Radiation
Heat can also be transferred by
Heat radiation can only occur through
The amount of radiation emitted or abs…
All objects can emit and
radiation
transparent substances e.g. glass, air, water
surface colour and texture
absorb heat radiation
Heat can also be transferred by
radiation
Heat radiation can only occur through
transparent substances e.g. glass, air, water
5 terms
Radiation
Gamma
Beta
Alpha
Atom
Electromagnetic radiation emitted from unstable nuclei in rad…
Particles that are high energy electrons created in and emitt…
Particles each composed of two protons and two neutrons emitt…
...
Gamma
Electromagnetic radiation emitted from unstable nuclei in rad…
Beta
Particles that are high energy electrons created in and emitt…
14 terms
Radiation
Radiation
Conduction
Convection
Plate techtonics
Transfer of heat through electromagnetic waves
Heat through contact
Movement of heat circulated by density difference
Theory that plates moves
Radiation
Transfer of heat through electromagnetic waves
Conduction
Heat through contact
2 of 10