Radiation (2) Flashcards

1
Q

What is Radiation?

A

Where high-energy particles (Particulate Radiation) or waves (Electromagnetic Radiation) travel.
- Also visible light + radio waves

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2
Q

Electromagnetic Radiation

A

Radiation Waves

  • Electromagnetic spectrum
  • No mass
  • Speed of light 3x10¹⁰cm/sec
  • No impact from magnetic fields
  • Expose photographic film
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3
Q

Particulate Radiation

A

High-Energy Particles

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4
Q

Ionizing Radiation

A

Causes neutral atoms to lose electrons in orbit, making them positively charged.

  • X-Ray
  • Disintegration of Radioactive source
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5
Q

Electromagnetic Waves

A
  • Electromagnetic Radiation

- shorter wavelength, more energetic particles

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6
Q

Soft Radiation

A

Short Radiation Wavelength, less energetic, rays penetrate materials

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7
Q

Hard Radiation

A

Shortest Radiation Wavelength, the most penetration

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8
Q

Ionization

A
  • minimum energy required to remove an electron from the shell/orbit
  • the photon energy must be at least equal to the binding forces of an electron
  • if photon energy is higher, remaining energy will cause more Ionization until all energy is absorbed
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9
Q

How to create an Ion Pair?

What is the process of Ionization?

A

Creating an Ion Pair (negative ion + positive ion)

Ionization is the process of where a high-energy particle/photon strikes and dislodges an electron creating a positive ion, the electron knocked out becomes the negative ion.

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10
Q

Non-Ionizing Radiation

A

Non-Harmful Radiation Waves, such as;

  • microwaves
  • radio waves
  • heat
  • visible light
  • some UV light
  • infrared light
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