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Definition
| A way of grouping different electromagnetic radiations |
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Term
| all member of the electromagnetic spectrum have the same |
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Definition
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| members of the electromagnetic spectrum differs in the |
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Definition
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| list the members of the electromagnetic spectrum from lowest to highest |
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Definition
Radio waves
microwaves
infraed light
visible light
ultraviolet light
X rays
Gamma rays |
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Term
| List the 4 properties of electromagnetic energy |
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Definition
Amplitude
wavelength
frequency
velocity |
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Definition
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Term
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Definition
| distance from crest to crest and is measured in anstroms |
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Definition
measured in hertz
the rate of rise and fall
directly related to energy |
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Term
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Definition
always constant
travels at the speed of light |
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Term
| what is the speed of light |
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Definition
3 x 10^8 m/s
186,000 miles/sec |
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Definition
| is higher in the K shell electrons |
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Term
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Definition
is highest in the outer shells
decreases the closer the shell gets to the nuclear |
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Term
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Definition
| is an atom that gains or looses 1 or more electrons |
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Term
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Definition
an ion is positively charge
has more protons than electrons |
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Term
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Definition
| a negatively charged ion that has more electrons than protons |
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Term
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Definition
| how to find the number of electrons that belong on a shell |
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Definition
| atoms of the same element with the same number of protons but different neutrons |
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Term
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Definition
| atoms of an element with the same number of neutrons and different protons |
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Term
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Definition
| atoms in an element with the same atomic mass but different atomic number |
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Term
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Definition
| atoms in and element with the same everything |
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Term
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Definition
| the intensity of an x ray beam is inversely proportional to the square of the distance from the source. |
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Term
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Definition
| beam intensity varies as a function of the square of the distance |
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Term
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Definition
| as SID increases the x ray beam intensity decreases because the beam is spread over a large area in the image receptor |
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Term
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Definition
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Term
| inverse square law states that when distance is doubled |
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Definition
| intensity is decreased by a factor of 4 |
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Term
| inverse square law states that when distance is 1/2 |
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Definition
| intensity is increased by a factor of 4 |
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Term
| highly penetrating and invisible rays |
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Definition
| x rays give of what type of rays |
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Term
| x rays are electrically neutral meaning |
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Definition
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Term
| x rays give of what type of energy |
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Definition
| poly energetic and heterogeneous meaning many energies |
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Term
| how does x rays react with surfaces |
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Definition
| cannot e focused by lenses and do not reflect on surfaces |
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Term
| how does x rays interact with matter |
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Definition
| ionizes all matter and causes biological and chemical changes |
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Term
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Definition
| in a straight line an at the speed of light |
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Term
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Definition
| secondary and scatter radiation |
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Term
| what does x rays do with film |
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Definition
| they affect photographic film |
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Term
| what does x rays do to materials |
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Definition
| causes materials to florescence |
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Term
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Definition
| x rays possesses properties of both waves(energy) and particles(matter) |
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Term
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Definition
| 2 main components of the x ray tube |
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Term
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Definition
is on the cathode
focus electrons using negative charge
made of nickle |
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Term
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Definition
made of thoriated tungsten
boils of electrons
needs 3-6 amps to heat |
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Term
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Definition
| the process of boiling of electrons when heated |
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Term
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Definition
| electrons because of theromonic emission creates a cloud that becomes so great that it opposes the emission of any more electrons |
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Term
| rotating or stationary anode |
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Definition
| has a focal tract/target and is made of tungsten-rhenium |
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Term
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Definition
wrapped with copper
works through electromagnetic induction
rotates @ low rpm of 3600 and high of 10,000. |
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Term
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Definition
| high capacity at 10000 RPM |
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Term
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Definition
electro-magnets that move the rotor
located outside the housing tube |
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Term
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Definition
| connects disk and rotors and is made of molybdenum |
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Term
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Definition
the exact area of target where electron beam strikes and
produces x rays and releases it isotropically |
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Term
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Definition
| x rays that exit the tube through the window. |
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Term
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Definition
| the smaller the anode angle, the smaller the effective focal spot giving better detail. |
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Term
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Definition
x ray intensity is greater on the cathode side.
this is more prevalent with a smaller anode angle.
because electrons interacts with the disk. |
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