(Trans) - Science of Radiation Flashcards
radiation is __
everywhere
transfer of energy from one source to another
radiation
upon exposure, radiation can either be ___
absorbed by matter or pass through
why are bones totally white in x-rays
because bone absorb the radiation
has the tendency to pass through
high energy
has the tendency to absorb
low energy
is very dese to the point that it has a tendency to absorb
bones
has a low density and it has the tendency to pass through
gas
do you become radiactive?
no
a term used to describe the instability of atoms and emit energy to return to a relaxed state
radioactivity
being expose to radiation
irradiation
is the process by which objects are exposed to radiation
irradiation
can a concrete wall be penetrated?
no, it has difficulty passing through a wall
can lead be penetrated
yes
why do bones absorb radiation
because of calcium
the length of time it takes for half of the radioactive atoms of a specific radionuclide to decay
radioactive half-life
radiation to cell
cell mutation
cell recovery
cell death
cell mutation
cell recovery
cell death
radiation to cell
the general public believe when they hear the words radiation and x-rays. it is believed to be hazardous
caution to the public
teaching how one practice using various imaging equipment including radiologic technologists. students, and trainees, and how they must understand the process
prevention of misunderstanding
types and effects of radiation
irradiated
short term effect
long term effect
short term effect of radiation
display of sickness
e.g., skin reddening and irritation
long term effects of radiation
cataracts
radiation capable of ejecting an orbital electron upon interaction
ionizing radiation
addition or removal of an electron with the usual result of ejecting an electron
ionization
radiation is incapable of ionizing atomic or molecular systems through a single interaction but excites it
non-ionizing radiation
excitation of atoms produces _
heat
the effects of radiation are determined on how much radiation was irradiated
basis of effect
radiation exposure-based symptoms can be evident upon exposure or in a later period of time
alarming effect
gametes or sex cells
germ cells
less radiosensitive (recovery)
female
radiosensitive (recovery)
male
reproductive organ is _, skin is the only thing protecting it
exposed
fully matured cells (recovery)
most of the cells created by those systems are fully matured high chance of recovery when it exposed to radiation.
immature cells (recovery)
- if immature 2 things nothing or higher chance of damage since immature siya di siya nakakapag mature
how are specific radiation made
energy interaction between atoms. specifically it is formed within the electrons
Other radiation?
energy can influence matt3er in many ways
Radiation not related for diagnosis and
therapeutics?
- Since those radiation are not needed, it is
better to understand how they are used.
can cause
cancer but it’s really rare (Cellphone signal and
wifi signal)
microwaves
is heat or thermal scans; ginagamit sa
airport: heat
infrared
the strongest light;
red is weaker; can be used for disinfection but
cannot disinfect everything
ultraviolet light
natural radiation
cosmic rays
terrestrial radiation
internally deposited radionuclides
-High energy radiation that originates from outside the Earth’s atmosphere
cosmic rays
radiation emitted by naturally occurring radioactive materials
terrestrial radiation
ex. radon
terrestrial radiation
some metals emit radiation ex. raidum
terrestrial radiation
dispersed forms that enter the body through inhalation, ingestion, by some form of injection, or, in some cases, by percutaneous absorption.
internally deposited radionuclides
(e.g., dusts, suspensions, solutions, or gases)
internally deposited radionuclides
smoke detector
internally deposited radionuclides
it is called americium-241
smoke detectro
man made radiation
- Medical Imaging Machines
- Consumer products
- Nuclear Power Plants
- Medical Imaging Machines
- Consumer products
- Nuclear Power Plants
man made radiation
- Anti neutrino (Same mass opposite charge)
neutron radiation
emit 3mSv annually
natural radiation
emit 3.2 mSv annually
man made radiation
millisievert
mSv
Radiation dose represents the amount of radiation absorbed by the body
millisievert mSv
positively charged electron
positron
used in PET scans
Positron
PET scan
Positron Emission Tomography
Negatively charged electron
negatron
lightning can cause x-rays
negatron
