what is x-ray radiation Flashcards

1
Q

What is an x-ray ?

A

X rays are a form of EM Radiation

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2
Q

give 3 examples of Electromagnetic waves which have higher frequencies but lower wavelengths

A
  • ultraviolet
    -x-ray
  • gamma ray
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3
Q

give 3 examples of electromagnetic waves which have lower frequencies but higher wavelengths

A
  • radio
  • microwave
    -infrared
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4
Q

draw and label where the crest and trough is on wave ?

A

see what is x-ray radiation file (7)

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5
Q

What is Frequency ?

A

Rate at which wave oscillates

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6
Q

what metric do we measure frequency ?

A

Hertz

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7
Q

what does these symbols stand for:
v
c
f
Λ

A

v = velocity of the wave m/s
C = speed of light 299,792,458 m/s
f = frequency Hz
Λ = wavelength m

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8
Q

equation for speed waves

A

v=f*Y(greek looking Y)

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9
Q

equation for Energy of the photon

A

E=h*F

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10
Q

What does each symbol mean in E=h*F

A

E = Energy of the photon J
h = Planks constant (6.626 x 10-34 J.s)
f = Frequency Hz

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11
Q

what are 3 main equations ?

A

E=hF
v=f
Y(greek looking Y)
c=f*Y

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12
Q

describe Transmission ?

A

X-Ray passes straight through the tissue without interacting with anything

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13
Q

describe Absorption ?

A

-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

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14
Q

describe scattered ?

A

-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

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15
Q

what can affect absorption and transmission

A

tissue density and thickness

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16
Q

describe Attenuation in term of x-ray beam ?

A

Attenuation is the reduction of the intensity of an x-ray beam as it traverses matter.

17
Q
A