what is x-ray radiation Flashcards
What is an x-ray ?
X rays are a form of EM Radiation
give 3 examples of Electromagnetic waves which have higher frequencies but lower wavelengths
- ultraviolet
-x-ray - gamma ray
give 3 examples of electromagnetic waves which have lower frequencies but higher wavelengths
- radio
- microwave
-infrared
draw and label where the crest and trough is on wave ?
see what is x-ray radiation file (7)
What is Frequency ?
Rate at which wave oscillates
what metric do we measure frequency ?
Hertz
what does these symbols stand for:
v
c
f
Λ
v = velocity of the wave m/s
C = speed of light 299,792,458 m/s
f = frequency Hz
Λ = wavelength m
equation for speed waves
v=f*Y(greek looking Y)
equation for Energy of the photon
E=h*F
What does each symbol mean in E=h*F
E = Energy of the photon J
h = Planks constant (6.626 x 10-34 J.s)
f = Frequency Hz
what are 3 main equations ?
E=hF
v=fY(greek looking Y)
c=f*Y
describe Transmission ?
X-Ray passes straight through the tissue without interacting with anything
describe Absorption ?
-X-Ray passes though the tissue, interacts with an atom in the tissue
-ALL the X-Rays energy is given to the tissue
-The X-Ray no longer exists
describe scattered ?
-X-Ray passes though the tissue, interacts with an atom in the tissue
-SOME of the X-Rays energy is given to the tissue
-The X-Ray continues on with the rest of it’s energy
-Scattered X-Ray
At a different angle to the incident photon
what can affect absorption and transmission
tissue density and thickness