Radiation (2)

Question 1

What is Radiation?

Answer 1

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

Question 2

Electromagnetic Radiation

Answer 2

Radiation Waves

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

Question 3

Particulate Radiation

Answer 3

High-Energy Particles

Question 4

Ionizing Radiation

Answer 4

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

• X-Ray
• Disintegration of Radioactive source

Question 5

Electromagnetic Waves

Answer 5

• Electromagnetic Radiation

- shorter wavelength, more energetic particles

Question 6

Soft Radiation

Answer 6

Short Radiation Wavelength, less energetic, rays penetrate materials

Question 7

Hard Radiation

Answer 7

Shortest Radiation Wavelength, the most penetration

Question 8

Ionization

Answer 8

• 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

Question 9

How to create an Ion Pair?

What is the process of Ionization?

Answer 9

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.

Question 10

Non-Ionizing Radiation

Answer 10

Non-Harmful Radiation Waves, such as;

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