Study sets matching "radiation"

Study sets
Classes
Users

Study sets matching "radiation"

68 terms
Radiation
Energy travels through space as ______…
Particles of electromagnetic radiation…
Definition of wave length
Definition of frequency
waves
wave lengths... frequencies
the distance between 2 consecutive wave peaks measured in nan…
number of waves that pass a single point per second
Energy travels through space as ______…
waves
Particles of electromagnetic radiation…
wave lengths... frequencies
16 terms
Radiation
Alpha
Gamma
Electron
Lead
What radiation is the helium nucleus
What radiation is an electromagnetic wave
What is a beta particle
Stops gamma radiation
Alpha
What radiation is the helium nucleus
Gamma
What radiation is an electromagnetic wave
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
16 terms
Radiation
Alpha
Gamma
Electron
Lead
What radiation is the helium nucleus
What radiation is an electromagnetic wave
What is a beta particle
Stops gamma radiation
Alpha
What radiation is the helium nucleus
Gamma
What radiation is an electromagnetic wave
Radiation
Alpha particles... α-particles
Beta-particles... β-particles
Gamma-particles... γ-rays
Half-life
Helium nucleus (two protons and two neutrons)... Stopped by pape…
Fast moving electrons... Stopped by aluminum... Less ionization pot…
Electromagnetic radiation... Only stopped by thick a sheet of le…
Time in which the activity or mass becomes half
Alpha particles... α-particles
Helium nucleus (two protons and two neutrons)... Stopped by pape…
Beta-particles... β-particles
Fast moving electrons... Stopped by aluminum... Less ionization pot…
radiation
radiation
conduction
convection
greenhouse effect
the transfer of energy as electromagnetic waves
the transfer of thermal energy from one thing to a noth thing
the transfer or the malingerer from the circulation
energy is trapped in the mobster and it is natrral
radiation
the transfer of energy as electromagnetic waves
conduction
the transfer of thermal energy from one thing to a noth thing
15 terms
Radiation
Radiation
Ionization
Background Radiation
Natural Sources of Radiation
energy traveling through space through electromagnetic waves…
the process by which an atom gains a positive or negative cha…
Low levels of radiation humans are exposed to everyday
Cosmic rays, rocks and soil and living things
Radiation
energy traveling through space through electromagnetic waves…
Ionization
the process by which an atom gains a positive or negative cha…
Radiation
Alpha decay
Beta emission
Positron emission
Electron capture
made of two protons and two neutrons, emits alpha particle
electron with positive charge
electron is pulled into the nucleus
Alpha decay
made of two protons and two neutrons, emits alpha particle
Beta emission
10 terms
Radiation
Alpha
Beta
Gamma
Sterilization
1) Very ionising particles made up of 2 PROTONS and 2 NEUTRON…
1) This is a fast(ONE) ELECTRON emitted from nucleus.... 2) Vey…
1) Very fast WAVE on electromagnetic spectrum... 2) Not very ion…
GAMMA RAYS - used to kill bacteria and animals on food in ord…
Alpha
1) Very ionising particles made up of 2 PROTONS and 2 NEUTRON…
Beta
1) This is a fast(ONE) ELECTRON emitted from nucleus.... 2) Vey…
16 terms
Radiation
Mass number
Radiosotope
Photosensitive
A Geiger Counter
the number of particles in a necleus
an isotope that is radioactive
this paper will change colour when exposed to radioactivity
this can gauge the amount of radioactivity in the atmosphere
Mass number
the number of particles in a necleus
Radiosotope
an isotope that is radioactive
Radiation
Radiation
Conduction
Convection
Green house effect
Moves energy through space in waves heating earth's surface
Traveled direct heated contact
circulation of liquid of gas
energy is trapped in the atmosphere
Radiation
Moves energy through space in waves heating earth's surface
Conduction
Traveled direct heated contact
Radiation
Ionizing radiation
Primary
Useful Beam
Leakage
is any electromagnetic or particulate radiation capable of pr…
Radiation coming directly from the target of the anode of an…
Part of the primary radiation that is permitted to emerge for…
When radiation escapes through the protective shielding and h…
Ionizing radiation
is any electromagnetic or particulate radiation capable of pr…
Primary
Radiation coming directly from the target of the anode of an…
10 terms
radiation
radiation
convection
conclution
density
Energy that is radiated or transmitted in the form of rays or…
The transfer of heat by the movement of a fluid
the end or close; final part.
Mass / Volume
radiation
Energy that is radiated or transmitted in the form of rays or…
convection
The transfer of heat by the movement of a fluid
Radiation
Radiation
Electromagnetic spectrum
Wavelength
Frequency
For moving to that travels through space as a series of waves
All forms of electromagnetic with varying energies
Distance between two points of same location on adjacent waves
Number of waves passing a point in one second
Radiation
For moving to that travels through space as a series of waves
Electromagnetic spectrum
All forms of electromagnetic with varying energies
21 terms
Radiation!
Transverse wave
Particles
electromagnetic radiation
Radiation
A wave that moves the medium in a direction perpendicular to…
A general name for atoms and molecules (and ions)
a form of energy that exhibits wavelike behavior as it travel…
(medicine) the treatment of disease (especially cancer) by ex…
Transverse wave
A wave that moves the medium in a direction perpendicular to…
Particles
A general name for atoms and molecules (and ions)
8 terms
Radiation
Radiation
Conduction
Insulators
physical change
is energy carried by electromagnetic Waves.
the movement of heat or electricity through something (such a…
a material that allows little or no heat, electricity, or sou…
Something that looks,acts,or feels different and can be easil…
Radiation
is energy carried by electromagnetic Waves.
Conduction
the movement of heat or electricity through something (such a…
40 terms
Radiation
what is the equivalent dose?
What is the effective dose?
how much radiation does a AP chest x-r…
how much radiation is everyone exposed…
Equivalent dose accounts for the type of radiation used, and…
Effective dose takes into account the type of radiation and t…
To put these numbers into perspective, a standard posterior-a…
2.4 mSv.year
what is the equivalent dose?
Equivalent dose accounts for the type of radiation used, and…
What is the effective dose?
Effective dose takes into account the type of radiation and t…
26 terms
radiation
not very likely that we are going to d…
what are the two forms of radiation tr…
what is the goal for palliative treatm…
for curative
it is used for regional control
palliative ... curative
palliation of clinical signs ( pain , bleeding )
long term tumour control
not very likely that we are going to d…
it is used for regional control
what are the two forms of radiation tr…
palliative ... curative
Radiation
What are the different types of radiat…
What are alpha particles?
How can you protect against alpha part…
What are beta particles?
Alpha, Beta, and Gamma Radiation
Helium Nucleus, 2 protons and 2 neutrons. Alpha particle is a…
Alpha particles are not very penetrating. Paper, clothing or…
Beta particles are high-speed electrons emitted from the nucl…
What are the different types of radiat…
Alpha, Beta, and Gamma Radiation
What are alpha particles?
Helium Nucleus, 2 protons and 2 neutrons. Alpha particle is a…
84 terms
Radiation
Atoms of the same element with the sam…
The emission of radiation from an unst…
Because they contain too many or too f…
Unstable isotopes try to get the right…
What is an isotope?
What is radioactivity?
Why do unstable isotopes emit radiation?
What happens in radioactive decay?
Atoms of the same element with the sam…
What is an isotope?
The emission of radiation from an unst…
What is radioactivity?
RADIATION
SUN
WAVES ELECTROMAGNETIC
ENERGY
ULTRAVIOLET RADIATION
The sun is the star too great the space, also is the planet v…
The sun transfers this waves for all space at our planet, it…
The energy is the force that effect the motion of any body
It is the effect from sun, that produces an colour between pu…
SUN
The sun is the star too great the space, also is the planet v…
WAVES ELECTROMAGNETIC
The sun transfers this waves for all space at our planet, it…
11 terms
Radiation
Radiation
Electromagnetic radiation
Electromagnetic spectrum
Generation of electromagnetic radiation
Energetic particles or waves traveling through vacuum or matt…
CLASSICAL THEORY:... Energy flow at universal speed of light thr…
Frequency (ν) is shared by classical and modern theory of ele…
Produced and lost when particle changes velocity.... "Any syste…
Radiation
Energetic particles or waves traveling through vacuum or matt…
Electromagnetic radiation
CLASSICAL THEORY:... Energy flow at universal speed of light thr…
24 terms
Radiation
Properly
Utility
Soil
Decay
Right,correct
İnstrument
Land,earth
Rotten
Properly
Right,correct
Utility
İnstrument
Radiation
What is a photon?
What is an absorber?
What is intensity?
What is the equation for intensity?
an energy packet of light
something that receives the photons energy
it explains the amount of energy per second
Energy per second = photons per second x energy per photon
What is a photon?
an energy packet of light
What is an absorber?
something that receives the photons energy
15 terms
Radiation
what is radioactive decay
whats radio active decay affected by
how do unstable isotopes or elements d…
what are the 3 types of radiation
when radioactive substances give out radiation from the nucle…
NOTHING - its completely unaffected by physical conditions
by radioactive decay
Alpha... Beta ... Gamma
what is radioactive decay
when radioactive substances give out radiation from the nucle…
whats radio active decay affected by
NOTHING - its completely unaffected by physical conditions
Radiation
What is an isotope?
What is a radiostope?
What does radioactivity mean?
What is radioactive decay?
an atom with a different number of neutrons
an isotope that is radioactive
they are unstable and continuously give out radiation
when the nucleus is more stable after emitting radiation
What is an isotope?
an atom with a different number of neutrons
What is a radiostope?
an isotope that is radioactive
20 terms
Radiation
What is an isotope?
What is the top number on an element s…
What is the bottom number on an elemen…
How do you work out the number of neut…
An atom of an element with the same number of protons but dif…
The mass number (the number of protons and neutrons)
The atomic number (the number of protons)
Mass number - Atomic number
What is an isotope?
An atom of an element with the same number of protons but dif…
What is the top number on an element s…
The mass number (the number of protons and neutrons)
24 terms
Radiation
Electromagnetic Radiation (EM)
Particle Radiation (p)
X-Rays
γ-Rays
When interacting with matter ______ radiation shows particle…
The energy of the photon and the frequency (or wavelength λ)…
Origin:... - deexcitation processes in the atoms... - energy loss o…
- typically higher energies than X-rays... Origin: ... - deexcitati…
Electromagnetic Radiation (EM)
When interacting with matter ______ radiation shows particle…
Particle Radiation (p)
The energy of the photon and the frequency (or wavelength λ)…
10 terms
Radiates
Phylum Cnidaria
Budding Hydra
Obelia
Obelia Medusa
Includes classes:... Hydrozoa... Scyphozoa... Cubozoa... Anthozoa
Class Hydrozoa
Class Hydrozoa
Class Hydrozoa
Phylum Cnidaria
Includes classes:... Hydrozoa... Scyphozoa... Cubozoa... Anthozoa
Budding Hydra
Class Hydrozoa
Radiator
surrounding
copper pipes
exposed
pass
مجاور
أنابيب نحاسية
تعرَّض
يمر
surrounding
مجاور
copper pipes
أنابيب نحاسية
158 terms
Radiates
5 Radiate Cnidarian Classes
sea anemones... corals
class ... Hydrozoa
epidermal
Hydrozoa... Scyphozoa... Cubozoa... Anthozoa... Staurozoa
class Anthozoa consists of____ _____ and _____
class of phylum Cnidaria in which polyp = dominant.... most stil…
in class Hydrozoa gonads are ______.
5 Radiate Cnidarian Classes
Hydrozoa... Scyphozoa... Cubozoa... Anthozoa... Staurozoa
sea anemones... corals
class Anthozoa consists of____ _____ and _____
18 terms
Solar Radiation
3 Components of Solar Radiation
About 1/3 of the Sun's Incoming Energy…
About 1/2 of the Sun's Incoming Energy…
About 1/6 of the Sun's Incoming Energy…
Infrared... Visible Light... Ultraviolet Light
Reflected
Absorbed
Atmosphere and Clouds
3 Components of Solar Radiation
Infrared... Visible Light... Ultraviolet Light
About 1/3 of the Sun's Incoming Energy…
Reflected
60 terms
34. Radiation safety and radiation protection
the type of radiation... dosage
ionizing
x rays >> radiography, CT, fluoroscopy…
free of charge and mass... travel at spee…
What does the harm of ionizing radiation depend on
All _ radiation is potentially harmful
Ionizing radiation used in veterinary medicine
properties of xrays and gamma rays
the type of radiation... dosage
What does the harm of ionizing radiation depend on
ionizing
All _ radiation is potentially harmful
15 terms
Electromagnetic radiation
Electromagnetic radiation
electromagnetic spectrum
electromagnetic wave
frequency
a range of electromagnetic waves consisting of oscillating el…
the range of frequencies of electromagnetic radiation, from h…
transverse electric and magnetic fields positioned at right a…
the number of waves produced per second, measured in hertz (H…
Electromagnetic radiation
a range of electromagnetic waves consisting of oscillating el…
electromagnetic spectrum
the range of frequencies of electromagnetic radiation, from h…
47 terms
solar radiation
what increases as angle of insolation…
where are the sun rays more direct at?
where are the sun rays less direct?
insolation in the north hemisphere is…
intensity of insolation increases leading to higher temperatu…
equator
poles
noon and june 21
what increases as angle of insolation…
intensity of insolation increases leading to higher temperatu…
where are the sun rays more direct at?
equator
12 terms
Electromagnetic radiation
Electromagnetic radiation
electromagnetic spectrum
electromagnetic wave
frequency
a range of electromagnetic waves consisting of oscillating el…
the range of frequencies of electromagnetic radiation, from h…
transverse electric and magnetic fields positioned at right a…
the number of waves produced per second, measured in hertz (H…
Electromagnetic radiation
a range of electromagnetic waves consisting of oscillating el…
electromagnetic spectrum
the range of frequencies of electromagnetic radiation, from h…
21 terms
Waves and Radiation - Nuclear Radiation
When an atom gains or loses an electron
Radiation that is made up of alpha par…
Fast moving electrons emitted from the…
Electromagnetic radiation emitted duri…
Ionisation?
Alpha Radiation
Beta Radiation
Gamma Radiation
When an atom gains or loses an electron
Ionisation?
Radiation that is made up of alpha par…
Alpha Radiation
135 terms
Radiation Protection
c) 2 and 3 only
a) 1 only
b) rad
b) 0.1%
When an image intensifier's magnification mode is used,... 1) ou…
What is used to account for the differences in tissue sensiti…
Which unit of exposure is described as 100 ergs of energy per…
What is the intensity of scattered radiation perpendicular to…
c) 2 and 3 only
When an image intensifier's magnification mode is used,... 1) ou…
a) 1 only
What is used to account for the differences in tissue sensiti…
54 terms
Radiation Safety
The study of the response of living sy…
___ rdxn both electrical and *magnet…
___ rdxn consists of ___. They have *h…
____ is the reduction of the x-ray bea…
Radiobiology ... Ionization
Electromagnetic... X-rays/Gamma-rays... X-rays produced by mach…
Particulate ... Particles... Alpha (helium), Electrons (beta), p…
ATTENUATION... 9%
The study of the response of living sy…
Radiobiology ... Ionization
___ rdxn both electrical and *magnet…
Electromagnetic... X-rays/Gamma-rays... X-rays produced by mach…
43 terms
Radiation Safety and Radiation Biology
Space, terrestrial
3.1 (mSv)
.26
2 Types of background radiation
Average annual effective dose _____ mSv
Dental exposure makes up _____% of radiation
Space, terrestrial
2 Types of background radiation
3.1 (mSv)
Average annual effective dose _____ mSv
21 terms
Radiation Introduction
What determines photon energy?
Percentage man made vs natural Radiati…
Percentage man made vs natural Radiati…
1 Sv= _____ rem
Frequency
82% Natural 18% Man Made
50% Natural 50% Man Made
100
What determines photon energy?
Frequency
Percentage man made vs natural Radiati…
82% Natural 18% Man Made
136 terms
Radiation Protection Test 2
Cells
Functions of a cell:
Every mature human cell is highly spec…
In order for efficient cell operation…
The basic units of all living matter and are essential for li…
Its responsible for the conduction of nerve impulses, contrac…
Move... Grow... React... Protect themselves... Repair damage... Regulate lif…
-Provide food as a source of raw material for the release of…
Cells
The basic units of all living matter and are essential for li…
Functions of a cell:
Its responsible for the conduction of nerve impulses, contrac…
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
142 terms
Radiation Protection
Radiation Protection
Goal of Radiation Protection
World Advisory Agencies
U.S. Regulatory Agencies
Effective measures employed by radiation workers to safeguard…
to prevent the occurrence of serious radiation-induced condit…
ICRP (1928)- international committee on radiological protecti…
NRC- Nuclear Regulatory Committee... -a federal agency that has…
Radiation Protection
Effective measures employed by radiation workers to safeguard…
Goal of Radiation Protection
to prevent the occurrence of serious radiation-induced condit…
59 terms
Radiation Safety
Roentrogen
Exposure
rad
1 Rad
Exposure Units
Measurement of the ionization in air
Absorbed Dose units
0.01 Gy = __ Rad
Roentrogen
Exposure Units
Exposure
Measurement of the ionization in air
26 terms
Radiation: Hereditary Effects of Radiation
Exposure of a population to radiation…
It is a commonly held view that radiat…
Mutants produced by manmade radiations…
Few human data are available on the he…
Genetic diseases refer to those mutations occurring in the ge…
Radiation does not result in genetic effects that are new or…
Sample sizes must be large to detect a small increase caused…
Consequently, the estimation of hereditary risks in the human…
Exposure of a population to radiation…
Genetic diseases refer to those mutations occurring in the ge…
It is a commonly held view that radiat…
Radiation does not result in genetic effects that are new or…
79 terms
Radiation Characteristics
x-ray tube
Focusing cup
Tungsten filament
Electrons
What is this?
What is 1
What is 2
What is 3
x-ray tube
What is this?
Focusing cup
What is 1
8 terms
infrared radiation / surfaces and radiation
infrared radiation is energy transfer…
all objects emit ...
the hotter an object is the more infra…
dark ,matt surfaces absorbs infrared r…
electromagnetic waves
infrared radiation
in a given time
light , shiny surfaces
infrared radiation is energy transfer…
electromagnetic waves
all objects emit ...
infrared radiation
98 terms
Radiation Biology
Target theory
What particles usually cause direct DN…
What particles usually cause indirect…
What is the most sensitive structure t…
Sensitivity of a cell is related to damage to DNA
High LET (linear Energy Transfer) particles like alpha partic…
Low LET particles (xrays/ gamma rays)... -involves ionization of…
DNA
Target theory
Sensitivity of a cell is related to damage to DNA
What particles usually cause direct DN…
High LET (linear Energy Transfer) particles like alpha partic…
106 terms
Module 1 Radiation Protection
Radiation Protection
Ionizing radiation
Biologic effects
Who discovered x-rays and what year?
Effective measures employed by radiation workers to safeguard…
Any radiation exposure that does not benefit a person in term…
Damage to living tissue of animals and humans exposed to radi…
William Roentgen, November 8th, 1895
Radiation Protection
Effective measures employed by radiation workers to safeguard…
Ionizing radiation
Any radiation exposure that does not benefit a person in term…
1 of 10