Electromagnetic Radiation/Temperture Extremes- Done Flashcards

0
Q

Examples of ionizing radiation

A
  1. X-rays
  2. Radio isotopes
  3. Radon
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1
Q

Types of electromagnetic radiation

A
  1. Ionizing
  2. Non-ionizing
  3. Lasers
  4. VDTs
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2
Q

Examples of sources of x-rays

A
  1. Tubes

2. High voltage equipment

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3
Q

Types of radio isotopes

A
  1. Neutrons
  2. Gamma
  3. Beta
  4. Alpha
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4
Q

Neutron exposure class

A

Penetrating

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5
Q

Gamma exposure class

A

Penetrating

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6
Q

Beta exposure class

A

Low penetrating

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7
Q

Alpha exposure class

A

Must be ingested, inhaled or absorbed

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8
Q

Environmental source of ionizing radiation

A

Naturally occurring radon

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9
Q

Uses of ionizing radiation

A
  1. Medical/therapeutic testing
  2. Instruments
  3. Analytical tools
  4. Product sterilization
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10
Q

Effects of ionizing radiation

A
  1. Cell ionization
  2. Genetic alteration

Effects depend on penetration

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11
Q

Exposure/protection factors

A
  1. Time
  2. Distance
  3. Shielding (best protection)
  4. Ventilation
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12
Q

Types of non-ionizing radiation

A
  1. Radio frequency
  2. Microwave
  3. Heat
  4. UHF/VHF
  5. Ultraviolet
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13
Q

Sources of non-ionizing radiation

A
  1. Unintentional (ex sunlight)
  2. Welding arc
  3. Lights
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14
Q

Effect of welding arc

A

Delayed photokeratitis

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15
Q

Uses of non-ionizing radiation

A
  1. Infra-red/ultraviolet lasers
  2. Communications
  3. Printing
  4. Food processing/drying
  5. Medical therapy
  6. Sterilizing
  7. Sealing/fusing
16
Q

Effects of non-ionizing radiation

A

Effects are heat related at cell level

  1. Hyperthermia
  2. Cataracts
  3. Nervous system
  4. Burns
17
Q

Controls for laser use

A
  1. Power interlocks
  2. Good seals
  3. Distance/shielding
  4. UV filters
  5. Laser glasses
18
Q

Paper is shielding for…..

A

Alpha particles

19
Q

Aluminum foil is shielding for….

A

Beta particles

20
Q

Lead is shielding for….

A
  1. X-rays

2. Gamma rays